Subjects -> ENERGY (Total: 414 journals)
    - ELECTRICAL ENERGY (12 journals)
    - ENERGY (252 journals)
    - ENERGY: GENERAL (7 journals)
    - NUCLEAR ENERGY (40 journals)
    - PETROLEUM AND GAS (58 journals)
    - RENEWABLE ENERGY (45 journals)

ENERGY (252 journals)                  1 2 | Last

Showing 1 - 200 of 406 Journals sorted by number of followers
Energy Policy     Partially Free   (Followers: 77)
IET Power Electronics     Open Access   (Followers: 69)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 55)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 48)
Energy     Partially Free   (Followers: 41)
Journal of Physical Chemistry C     Hybrid Journal   (Followers: 37)
Nature Energy     Hybrid Journal   (Followers: 37)
IEEE Power and Energy     Full-text available via subscription   (Followers: 34)
International Journal of Hydrogen Energy     Partially Free   (Followers: 34)
Applied Energy     Partially Free   (Followers: 32)
Energy & Fuels     Hybrid Journal   (Followers: 29)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 29)
Advances in High Energy Physics     Open Access   (Followers: 26)
Advances in Natural Sciences : Nanoscience and Nanotechnology     Open Access   (Followers: 26)
Energy & Environment     Hybrid Journal   (Followers: 25)
Energy and Power Engineering     Open Access   (Followers: 23)
Applied Solar Energy     Hybrid Journal   (Followers: 21)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 21)
International Journal of Turbomachinery, Propulsion and Power     Open Access   (Followers: 21)
Solar Energy     Hybrid Journal   (Followers: 20)
Energy Materials : Materials Science and Engineering for Energy Systems     Hybrid Journal   (Followers: 19)
Journal of Solar Energy Engineering     Full-text available via subscription   (Followers: 19)
Water International     Hybrid Journal   (Followers: 19)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 18)
Energy and Power     Open Access   (Followers: 18)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 16)
Nuclear Engineering and Design     Hybrid Journal   (Followers: 16)
Energy, Sustainability and Society     Open Access   (Followers: 16)
Economics and Policy of Energy and the Environment     Full-text available via subscription   (Followers: 16)
Energy Conversion and Management     Hybrid Journal   (Followers: 15)
Progress in Energy and Combustion Science     Hybrid Journal   (Followers: 14)
Waste Management     Hybrid Journal   (Followers: 14)
Energy and Environment Research     Open Access   (Followers: 14)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 14)
Advances in Energy and Power     Open Access   (Followers: 14)
Surface Science Reports     Full-text available via subscription   (Followers: 13)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 13)
Energy Journal The     Hybrid Journal   (Followers: 13)
Energy Research & Social Science     Full-text available via subscription   (Followers: 13)
Energy and Buildings     Hybrid Journal   (Followers: 12)
International Journal of Sustainable Energy     Hybrid Journal   (Followers: 12)
Oil and Gas Journal     Full-text available via subscription   (Followers: 12)
Biofuels     Hybrid Journal   (Followers: 12)
Journal of Solar Energy     Open Access   (Followers: 12)
Journal of Renewable Energy     Open Access   (Followers: 12)
Advances in Building Energy Research     Hybrid Journal   (Followers: 11)
Energy Systems     Hybrid Journal   (Followers: 11)
International Journal of Thermodynamics     Open Access   (Followers: 11)
Joule     Hybrid Journal   (Followers: 11)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 10)
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 10)
International Journal of Energy Research     Hybrid Journal   (Followers: 10)
Energy Efficiency     Hybrid Journal   (Followers: 10)
Journal of Ocean and Climate     Open Access   (Followers: 10)
Energy Science and Technology     Open Access   (Followers: 10)
Energy Strategy Reviews     Open Access   (Followers: 10)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Batteries     Open Access   (Followers: 10)
ACS Energy Letters     Hybrid Journal   (Followers: 10)
Archives of Thermodynamics     Open Access   (Followers: 9)
Journal of Modern Power Systems and Clean Energy     Open Access   (Followers: 9)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 8)
International Journal of Green Energy     Hybrid Journal   (Followers: 8)
Smart Grid and Renewable Energy     Open Access   (Followers: 8)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 8)
International Journal of Energy and Power     Open Access   (Followers: 8)
American Journal of Energy Research     Open Access   (Followers: 8)
CERN courier. International journal of high energy physics     Free   (Followers: 8)
Energy and Environment Focus     Free   (Followers: 8)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 7)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 7)
International Journal of Electric and Hybrid Vehicles     Hybrid Journal   (Followers: 7)
Applied Nanoscience     Open Access   (Followers: 7)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 7)
Energy Storage Materials     Full-text available via subscription   (Followers: 7)
ACS Applied Energy Materials     Hybrid Journal   (Followers: 7)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 6)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 6)
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 6)
Materials for Renewable and Sustainable Energy     Open Access   (Followers: 6)
Energy Science & Engineering     Open Access   (Followers: 6)
American Journal of Energy and Environment     Open Access   (Followers: 6)
Atomic Energy     Hybrid Journal   (Followers: 5)
Carbon Management     Open Access   (Followers: 5)
Journal of Energy Technologies and Policy     Open Access   (Followers: 5)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 5)
Energy Studies Review     Open Access   (Followers: 5)
Energy Technology     Partially Free   (Followers: 5)
Geothermal Energy     Open Access   (Followers: 5)
Frontiers in Energy Research     Open Access   (Followers: 5)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 5)
International Journal of Sustainable Energy Planning and Management     Open Access   (Followers: 5)
Energy and Environmental Engineering     Open Access   (Followers: 5)
Energy Reports     Open Access   (Followers: 5)
Journal of Energy & Natural Resources Law     Hybrid Journal   (Followers: 5)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Frontiers in Energy     Hybrid Journal   (Followers: 4)
International Journal of Nuclear Energy Science and Technology     Hybrid Journal   (Followers: 4)
Journal of Photochemistry and Photobiology B: Biology     Hybrid Journal   (Followers: 4)
Wind Energy     Hybrid Journal   (Followers: 4)
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
International Journal of Sustainable Engineering     Hybrid Journal   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 4)
Journal of Nano Energy and Power Research     Full-text available via subscription   (Followers: 4)
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 4)
Science and Technology for Energy Transition     Open Access   (Followers: 4)
International Journal of Applied Power Engineering     Open Access   (Followers: 4)
Development of Energy Science     Open Access   (Followers: 4)
Journal of International Energy Policy     Open Access   (Followers: 4)
Foundations and Trends® in Renewable Energy     Full-text available via subscription   (Followers: 4)
International Journal of Energy and Statistics     Hybrid Journal   (Followers: 4)
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 4)
Journal of Energy Chemistry     Full-text available via subscription   (Followers: 4)
Journal of Energy Storage     Full-text available via subscription   (Followers: 4)
Journal of Energy, Mechanical, Material and Manufacturing Engineering     Open Access   (Followers: 4)
Journal of Fusion Energy     Hybrid Journal   (Followers: 3)
Journal of Photochemistry and Photobiology A: Chemistry     Hybrid Journal   (Followers: 3)
Journal of Photochemistry and Photobiology C: Photochemistry Reviews     Full-text available via subscription   (Followers: 3)
Global Energy Law and Sustainability     Hybrid Journal   (Followers: 3)
Science and Technology of Nuclear Installations     Open Access   (Followers: 3)
Power Technology and Engineering     Hybrid Journal   (Followers: 3)
Functional Materials Letters     Hybrid Journal   (Followers: 3)
Distributed Generation & Alternative Energy Journal     Hybrid Journal   (Followers: 3)
Sustainable Energy     Open Access   (Followers: 3)
Journal of Technology Innovations in Renewable Energy     Hybrid Journal   (Followers: 3)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 3)
International Journal of Coal Science & Technology     Open Access   (Followers: 3)
Energy and Emission Control Technologies     Open Access   (Followers: 3)
Asian Bulletin of Energy Economics and Technology     Open Access   (Followers: 3)
Protection and Control of Modern Power Systems     Open Access   (Followers: 3)
Sustainable Energy & Fuels     Hybrid Journal   (Followers: 3)
International Journal of Nuclear Knowledge Management     Hybrid Journal   (Followers: 2)
Progress in Nuclear Energy     Hybrid Journal   (Followers: 2)
Electricity Journal     Hybrid Journal   (Followers: 2)
Proceedings of the Institution of Civil Engineers - Energy     Hybrid Journal   (Followers: 2)
Gcb Bioenergy     Open Access   (Followers: 2)
Journal of Semiconductors     Full-text available via subscription   (Followers: 2)
EPJ Photovoltaics     Open Access   (Followers: 2)
International Journal of Clean Coal and Energy     Open Access   (Followers: 2)
Washington and Lee Journal of Energy, Climate, and the Environment     Open Access   (Followers: 2)
Journal of Energy in Southern Africa     Open Access   (Followers: 2)
Journal of Alternate Energy Sources & Technologies     Full-text available via subscription   (Followers: 2)
Journal of Nuclear Energy Science & Power Generation Technology     Hybrid Journal   (Followers: 2)
Nigerian Journal of Technological Research     Full-text available via subscription   (Followers: 2)
Journal of Energy     Open Access   (Followers: 2)
Energy Technology & Policy     Open Access   (Followers: 2)
Biofuel Research Journal     Open Access   (Followers: 2)
Green Energy & Environment     Open Access   (Followers: 2)
Materials Today Energy     Hybrid Journal   (Followers: 2)
Journal of Power and Energy Engineering     Open Access   (Followers: 2)
Clean Energy     Open Access   (Followers: 2)
Global Challenges     Open Access   (Followers: 2)
Carbon Resources Conversion     Open Access   (Followers: 2)
IET Smart Grid     Open Access   (Followers: 2)
IET Energy Systems Integration     Open Access   (Followers: 2)
International Journal of Nuclear Desalination     Hybrid Journal   (Followers: 1)
International Journal of Nuclear Hydrogen Production and Applications     Hybrid Journal   (Followers: 1)
Radioprotection     Hybrid Journal   (Followers: 1)
Nuclear Law Bulletin     Full-text available via subscription   (Followers: 1)
International Journal of Power and Energy Conversion     Hybrid Journal   (Followers: 1)
Clefs CEA     Full-text available via subscription   (Followers: 1)
Journal of Computational Multiphase Flows     Open Access   (Followers: 1)
Natural Resources     Open Access   (Followers: 1)
Journal of Sustainable Bioenergy Systems     Full-text available via subscription   (Followers: 1)
Open Journal of Energy Efficiency     Open Access   (Followers: 1)
Michigan Journal of Sustainability     Open Access   (Followers: 1)
Technology Audit and Production Reserves     Open Access   (Followers: 1)
Sustainable Energy Technologies and Assessments     Full-text available via subscription   (Followers: 1)
International Journal of Smart Grid and Green Communications     Hybrid Journal   (Followers: 1)
Clean Technologies     Open Access   (Followers: 1)
Energy Conversion and Management : X     Open Access   (Followers: 1)
Technology and Economics of Smart Grids and Sustainable Energy     Hybrid Journal   (Followers: 1)
Energy, Ecology and Environment     Hybrid Journal   (Followers: 1)
International Journal of Energy and Water Resources     Hybrid Journal  
BioPhysical Economics and Resource Quality     Hybrid Journal  
Geomechanics and Geophysics for Geo-Energy and Geo-Resources     Hybrid Journal  
BMC Energy     Open Access  
Journal of Energy and Environment Technology of Graduate School Siam Technology College     Open Access  
Global Energy Interconnection     Open Access  
Journal of Energy Systems     Open Access  
International Journal of Energy & Engineering Sciences     Open Access  
International Journal of Energy and Smart Grid     Open Access  
Turkish Journal of Energy Policy     Open Access  
Energy Informatics     Open Access  
High Voltage     Open Access  
Geomechanics for Energy and the Environment     Full-text available via subscription  
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations     Open Access  
Journal of China Coal Society     Open Access  
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Universal Journal of Applied Science     Open Access  
Ingeniería Energética     Open Access  
E3S Web of Conferences     Open Access  
International Journal of Ambient Energy     Hybrid Journal  
CT&F - Ciencia, Tecnología y Futuro     Open Access  
Multequina     Open Access  
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Chain Reaction     Full-text available via subscription  
Wind Engineering     Hybrid Journal  
Nuclear Data Sheets     Full-text available via subscription  
International Journal of Nuclear Governance, Economy and Ecology     Hybrid Journal  

        1 2 | Last

Similar Journals
Journal Cover
Journal of Modern Power Systems and Clean Energy
Journal Prestige (SJR): 1.076
Citation Impact (citeScore): 4
Number of Followers: 9  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2196-5625 - ISSN (Online) 2196-5420
Published by SpringerOpen Homepage  [229 journals]
  • Erratum to: Wind power forecasting based on outlier smooth transition
           autoregressive GARCH model

    • PubDate: 2019-11-01
  • Probabilistic day-ahead simultaneous active/reactive power management in
           active distribution systems

    • Abstract: Abstract Distributed generations (DGs) are main components for active distribution networks (ADNs). Owing to the large number of DGs integrated into distribution levels, it will be essential to schedule active and reactive power resources in ADNs. Generally, energy and reactive power scheduling problems are separately managed in ADNs. However, the separate scheduling cannot attain a global optimum scheme in the operation of ADNs. In this paper, a probabilistic simultaneous active/reactive scheduling framework is presented for ADNs. In order to handle the uncertainties of power generations of renewable-based DGs and upstream grid prices in an efficient framework, a stochastic programming technique is proposed. The stochastic programming can help distribution system operators (DSOs) to make operation decisions in front of existing uncertainties. The proposed coordinated model considers the minimization of the energy and reactive power costs of all distributed resources along with the upstream grid. Meanwhile, a new payment index as loss profit value for DG units is introduced and embedded in the model. Numerical results based on the 22-bus and IEEE 33-bus ADNs validate the effectiveness of the proposed method. The obtained results verify that through the proposed stochastic-based power management system, the DSO can effectively schedule all DGs along with its economic targets while considering severe uncertainties.
      PubDate: 2019-11-01
  • Review and prospect of hidden failure: protection system and security and
           stability control system

    • Abstract: Abstract With the construction of the “3-level, 3-vertical-line, and 1-circle” power backbone in China, it’s stricter and stricter on relay protection system and security and stability control system (SSCS) for reliable power transmission. Lots of blackouts in the world had happened, one main reason for which is the hidden failures of relay protection system or SSCS. Much work had been done about the hidden failure of relay protection, including classification, probability model, analysis methods of effects on power grid, and monitoring measures, which was summarized in the paper. The operation experiences of SSCS indicated that there might be hidden failures in five links of the security and stability control device (SSCD), e.g. measuring, control strategy, setting, communication and voting pattern. In addition, the coordination hidden failure among relay protection system, SSCS, and power plant’s parameters related to the power grid was pointed out for more attention. In the future, amounts of work will be expected to be conducted on hidden failure: model building, assessment methods, application of research achievements, operation management of secondary equipment, and coordination problem between the relay protection system and the SSCS.
      PubDate: 2019-11-01
  • Stochastic optimization of cost-risk for integrated energy system
           considering wind and solar power correlated

    • Abstract: Abstract Due to the growing penetration of renewable energies (REs) in integrated energy system (IES), it is imperative to assess and reduce the negative impacts caused by the uncertain REs. In this paper, an unscented transformation-based mean-standard (UT-MS) deviation model is proposed for the stochastic optimization of cost-risk for IES operation considering wind and solar power correlated. The unscented transformation (UT) sampling method is adopted to characterize the uncertainties of wind and solar power considering the correlated relationship between them. Based on the UT, a mean-standard (MS) deviation model is formulated to depict the trade-off between the cost and risk of stochastic optimization for the IES optimal operation problem. Then the UT-MS model is tackled by a multi-objective group search optimizer with adaptive covariance and Lévy flights embedded with a multiple constraints handling technique (MGSO-ACL-CHT) to ensure the feasibility of Perato-optimal solutions. Furthermore, a decision making method, improve entropy weight (IEW), is developed to select a final operation point from the set of Perato-optimal solutions. In order to verify the feasibility and efficiency of the proposed UT-MS model in dealing with the uncertainties of correlative wind and solar power, simulation studies are conducted on a test IES. Simulation results show that the UT-MS model is capable of handling the uncertainties of correlative wind and solar power within much less samples and less computational burden. Moreover, the MGSO-ACL-CHT and IEW are also demonstrated to be effective in solving the multi-objective UT-MS model of the IES optimal operation problem.
      PubDate: 2019-11-01
  • Investment optimization of grid-scale energy storage for supporting
           different wind power utilization levels

    • Abstract: Abstract With the large-scale integration of renewable generation, energy storage system (ESS) is increasingly regarded as a promising technology to provide sufficient flexibility for the safe and stable operation of power systems under uncertainty. This paper focuses on grid-scale ESS planning problems in transmission-constrained power systems considering uncertainties of wind power and load. A scenario-based chance-constrained ESS planning approach is proposed to address the joint planning of multiple technologies of ESS. Specifically, the chance constraints on wind curtailment are designed to ensure a certain level of wind power utilization for each wind farm in planning decision-making. Then, an easy-to-implement variant of Benders decomposition (BD) algorithm is developed to solve the resulting mixed integer nonlinear programming problem. Our case studies on an IEEE test system indicate that the proposed approach can co-optimize multiple types of ESSs and provide flexible planning schemes to achieve the economic utilization of wind power. In addition, the proposed BD algorithm can improve the computational efficiency in solving this kind of chance-constrained problems.
      PubDate: 2019-11-01
  • Hierarchical dispatch of multiple microgrids using nodal price: an
           approach from consensus and replicator dynamics

    • Abstract: Abstract A hierarchical approach for the energy management of geographically close microgrids connected through a dedicated AC power network is proposed in this paper. The proposed approach consists of a two-layer energy management system (EMS) for networked microgrids. In the lower layer, each microgrid solves its own economic dispatch problem through a distributed model predictive control approach that respects capacity limits and ramp-rate constraints of distributed generation. In the upper layer, the energy trading in the network of microgrids decides how to optimally trade the energy based on the marginal cost information from the lower layer in order to improve global optimization objectives, e.g., social welfare. In order to solve the trading problem, a consensus-based algorithm and a replicator dynamics algorithm are proposed assuming that the marginal cost function of the microgrid is known and linear. It is shown that both algorithms converge to the same solution, which is equivalent to the minimization of operation costs. The consensus-based algorithm is extended in order to tackle more general marginal cost functions and trading network constraints. Moreover, the effect of ramp constraints and network limits is studied. Simulations show the effectiveness of the proposed algorithms for three interconnected microgrids with different characteristics.
      PubDate: 2019-11-01
  • Reliability evaluation of integrated electricity–gas system utilizing
           network equivalent and integrated optimal power flow techniques

    • Abstract: Abstract The wide utilization of gas-fired generation and the rapid development of power-to-gas technologies have led to the intensified integration of electricity and gas systems. The random failures of components in either electricity or gas system may have a considerable impact on the reliabilities of both systems. Therefore, it is necessary to evaluate the reliabilities of electricity and gas systems considering their integration. In this paper, a novel reliability evaluation method for integrated electricity–gas systems (IEGSs) is proposed. First, reliability network equivalents are utilized to represent reliability models of gas-fired generating units, gas sources (GSs), power-to-gas facilities, and other conventional generating units in IEGS. A contingency management schema is then developed considering the coupling between electricity and gas systems based on an optimal power flow technique. Finally, the time-sequential Monte Carlo simulation approach is used to model the chronological characteristics of the corresponding reliability network equivalents. The proposed method is capable to evaluate customers’ reliabilities in IEGS, which is illustrated on an integrated IEEE Reliability Test System and Belgium gas transmission system.
      PubDate: 2019-11-01
  • Schedulable capacity forecasting for electric vehicles based on big data

    • Abstract: Abstract Fast and accurate forecasting of schedulable capacity of electric vehicles (EVs) plays an important role in enabling the integration of EVs into future smart grids as distributed energy storage systems. Traditional methods are insufficient to deal with large-scale actual schedulable capacity data. This paper proposes forecasting models for schedulable capacity of EVs through the parallel gradient boosting decision tree algorithm and big data analysis for multi-time scales. The time scale of these data analysis comprises the real time of one minute, ultra-short-term of one hour and one-day-ahead scale of 24 hours. The predicted results for different time scales can be used for various ancillary services. The proposed algorithm is validated using operation data of 521 EVs in the field. The results show that compared with other machine learning methods such as the parallel random forest algorithm and parallel k-nearest neighbor algorithm, the proposed algorithm requires less training time with better forecasting accuracy and analytical processing ability in big data environment.
      PubDate: 2019-11-01
  • Robust subsynchronous interaction damping controller for DFIG-based wind

    • Abstract: Abstract This paper proposes a robust controller to improve power system stability and mitigate subsynchronous interaction (SSI) between doubly-fed induction generator (DFIG)-based wind farms and series compensated transmission lines. A robust stability analysis is first carried out to show the impact of uncertainties on the SSI phenomenon. The uncertainties are mainly due to the changes in the power system impedance (e.g., transmission line outages) and the variations of wind farm operating conditions. Then, using the µ-synthesis technique, a robust SSI damping controller is designed and augmented to the DFIG control system to effectively damp the SSI oscillations. The output signals of the supplementary controller are dynamically limited to avoid saturating the converters and to provide DFIG with the desired fault-ride-through (FRT) operation during power system faults. The proposed controller is designed for a realistic test system with multiple series capacitor compensated lines. The frequency of the unstable SSI mode varies over a wide range due to the changes in power system topologies and wind farm operating conditions. The performance of the proposed controller is verified through electromagnetic transient (EMT) simulations using a detailed wind farm model. Simulation results also confirm the grid compliant operation of the DFIG.
      PubDate: 2019-11-01
  • Risk assessment of microgrid aggregators considering demand response and
           uncertain renewable energy sources

    • Abstract: Abstract In power market environment, the growing importance of demand response (DR) and renewable energy source (RES) attracts more for-profit DR and RES aggregators to compete with each other to maximize their profit. Meanwhile, the intermittent natures of these alternative sources along with the competition add to the probable financial risk of the aggregators. The objective of the paper is to highlight this financial risk of aggregators in such uncertain environment while estimating DR magnitude and power generated by RES. This work develops DR modeling incorporating the effect of estimating power at different confidence levels and uncertain participation of customers. In this paper, two well-known risk assessment techniques, value at risk and conditional value at risk, are applied to predict the power from RES and DR programs at a particular level of risk in different scenarios generated by Monte Carlo method. To establish the linkage between financial risk taking ability of individuals, the aggregators are classified into risk neutral aggregator, risk averse aggregator and risk taking aggregator. The paper uses data from Indian Energy Exchange to produce realistic results and refers certain policies of Indian Energy Exchange to frame mathematical expressions for benefit function considering uncertainties for each type of three aggregators. Extensive results show the importance of assessing the risks involved with two unpredictable variables and possible impacts on technical and financial attributes of the microgrid energy market.
      PubDate: 2019-11-01
  • Analysis of unbalanced clustered voltage and control strategy of clustered
           voltage balancing for cascaded H-bridge STATCOM

    • Abstract: Abstract To explore the clustered voltage balancing mechanism of the cascaded H-bridge static synchronous compensator (STATCOM), this paper analyzes the causes of unbalanced clustered voltage. The negative-sequence current caused by the compensation of unbalanced reactive power or detection and control errors and the zero-sequence voltage caused by voltage drift of the STATCOM neutral point contribute to unbalanced clustered voltage. On this basis, this paper proposes a control strategy to inject negative-sequence current and zero-sequence voltage simultaneously. The injection of negative-sequence current may cause current asymmetry in the grid, and the zero-sequence injection has a relatively limited balancing ability in the clustered voltages. The proposed control strategy can not only generate a faster balancing response than the traditional zero-sequence voltage injection method, but also lower the extent of current asymmetry compared with the traditional negative-sequence current injection method. Then, the negative-sequence current and zero-sequence voltage injection are further transformed into the dq frame to establish a unified frame. The effectiveness of the proposed control strategy is verified by the simulation and experimental results.
      PubDate: 2019-11-01
  • Coordinated dispatching strategy of multiple energy sources for wind power

    • Abstract: Abstract Heat storage systems with multiple heat sources play an important role in consuming extra wind power. A reasonable scheduling strategy for a hybrid system with multiple heat and electric sources could provide greater economic benefits. However, the present scheduling methods primarily focus on extra wind power consumption alone. This paper aims to develop a coordinated dispatching method that targets the maximum extra wind power consumed and highest economic benefit of the hybrid energy system as the optimization objective. A two-step coordinated dispatching method is proposed, where the first step focuses on optimizing the extra wind power consumed by coordinating the consumption quota for different types of energy sources at the system level and distributes the consumption share for every unit within each type of energy source, thereby maximizing fuel savings and economic benefits in the second step. The effectiveness of the approach is demonstrated using simulation results for an electric-heat hybrid system. Compared with two existing dispatching methods, the scheduling strategy presented in this paper could consume more extra wind power and provide higher fuel savings and economic benefits.
      PubDate: 2019-11-01
  • Availability estimation of wind power forecasting and optimization of
           day-ahead unit commitment

    • Abstract: Abstract Due to the uncertainty of the accuracy of wind power forecasting, wind turbines cannot be accurately equated with dispatchable units in the preparation of a day-ahead dispatching plan for power grid. A robust optimization model for the uncertainty of wind power forecasting with a given confidence level is established. Based on the forecasting value of wind power and the divergence function of forecasting error, a robust evaluation method for the availability of wind power forecasting during given load peaks is established. A simulation example is established based on a power system in Northeast China and an IEEE 39-node model. The availability estimation parameters are used to calculate the equivalent value of wind power of the conventional unit to participate in the day-ahead dispatching plan. The simulation results show that the model can effectively handle the challenge of uncertainty of wind power forecasting, and enhance the consumption of wind power for the power system.
      PubDate: 2019-11-01
  • Incentive-based demand response model for maximizing benefits of
           electricity retailers

    • Abstract: Abstract The change of customer behaviors and the fluctuation of spot prices can affect the benefits of electricity retailers. To address this issue, an incentive-based demand response (DR) model involving the utility and elasticity of customers is proposed for maximizing the benefits of retailers. The benefits will increase by triggering an incentive price to influence customer behaviors to change their demand consumptions. The optimal reduction of customers is obtained by their own profit optimization model with a certain incentive price. Then, the sensitivity of incentive price on retailers’ benefits is analyzed and the optimal incentive price is obtained according to the DR model. The case study verifies the effectiveness of the proposed model.
      PubDate: 2019-11-01
  • Discovering communities for microgrids with spatial-temporal net energy

    • Abstract: Abstract Smart grid has integrated an increasing number of distributed energy resources to improve the efficiency and flexibility of power generation and consumption as well as the resilience of the power grid. The energy consumers on the power grid, e.g., households, equipped with distributed energy resources can be considered as “microgrids” that both generate and consume electricity. In this paper, we study the energy community discovery problems which identify energy communities for the microgrids to facilitate energy management, e.g., load balancing, energy sharing and trading on the grid. Specifically, we present efficient algorithms to discover such communities of microgrids considering both their geo-locations and net energy (NE) over any period. Finally, we experimentally validate the performance of the algorithms using both synthetic and real datasets.
      PubDate: 2019-11-01
  • Integrated coordination scheduling framework of electricity-natural gas
           systems considering electricity transmission N − 1 contingencies and
           gas dynamics

    • Abstract: Abstract This paper discusses a security-constrained integrated coordination scheduling framework for an integrated electricity-natural gas system (IEGS), in which both tight interdependence between electricity and natural gas transmission networks and their distinct dynamic characteristics at different timescales are fully considered. The proposed framework includes two linear programming models. The first one focuses on hour-based steady-state coordinated economic scheduling on power outputs of electricity generators and mass flow rates of natural gas sources while considering electricity transmission N − 1 contingencies. Using the steady-state mass flow rate solutions of gas sources as the initial value, the second one studies second-based slow gas dynamics and optimizes pressures of gas sources to ensure that inlet gas pressure of gas-fired generator is within the required pressure range at any time between two consecutive steady-state scheduling. The proposed framework is validated via an IEGS consisting of an IEEE 24-bus electricity network and a 15-node 14-pipeline natural gas network coupled by gas-fired generators. Numerical results illustrate the effectiveness of the proposed framework in coordinating electricity and natural gas systems as well as achieving economic and reliable operation of IEGS.
      PubDate: 2019-11-01
  • Convex optimization of virtual storage system scheduling in market

    • Abstract: Abstract Due to the popularization of distributed energy resources (DERs), the aggregated prosumer effect excels a general energy storage system characteristic. Virtual energy storage system (VESS) concept is proposed hereby that mimics an actual storage unit and incorporates the same charging (consumer) and discharging (producer) modes. It is possible to provide ancillary services via VESS by exploiting the flexibility and thus much research has been proposed on the optimization of the VESS scheduling. In general, the charging and discharging efficiencies of VESS are different and there can be only one status at a time slot. To achieve the optimal schedule while considering the constraints above, binary terms should be introduced into the optimization problem which end up with a nonconvex problem. In this paper, a complimentary mathematical proof is given for the convexification of this mixed integer linear programming (MILP) problem so that the linear programming (LP) method can be applied instead if the objective function is linear. The proposed proof is validated through a case study and the simulation results show the effectiveness of the proposed method.
      PubDate: 2019-11-01
  • Large-signal modeling of three-phase dual active bridge converters for
           electromagnetic transient analysis in DC grids

    • Abstract: Abstract The three-phase dual active bridge (3p-DAB) converter is widely considered in next-generation DC grid applications. As for traditional AC grids, the successful integration of power electronic converters in DC grids requires accurate time-domain system-level studies. As demonstrated in the existing literature, the development and efficient implementation of large-signal models of 3p-DAB converters are not trivial. In this paper, a generalized average model is developed, which enables system-level simulation of DC grids with 3p-DAB converters in electromagnetic transient type (EMT-type) programs. The proposed model is rigorously compared with alternative modeling techniques: ideal-model, switching-function and state-space averaging. It is concluded that the generalized average model provides an optimal solution when accuracy of transient response, reduction in computation time, and wideband response factors are considered.
      PubDate: 2019-11-01
  • Optimal configuration of distributed power flow controller to enhance
           system loadability via mixed integer linear programming

    • Abstract: Abstract Increasing energy consumption has caused power systems to operate close to the limit of their capacity. The distributed power flow controller (DPFC), as a new member of distributed flexible AC transmission systems, is introduced to remove this barrier. This paper proposes an optimal DPFC configuration method to enhance system loadability considering economic performance based on mixed integer linear programming. The conflicting behavior of system loadability and DPFC investment is analyzed and optimal solutions are calculated. Thereafter, the fuzzy decision-making method is implemented for determining the most preferred solution. In the most preferred solution obtained, the investment of DPFCs is minimized to find the optimal number, locations and set points. Simulation results on the IEEE-RTS79 system demonstrate that the proposed method is effective and reasonable.
      PubDate: 2019-11-01
  • A retroactive approach to microgrid real-time scheduling in quest of
           perfect dispatch solution

    • Abstract: Abstract As an emerging paradigm in distributed power systems, microgrids provide promising solutions to local renewable energy generation and load demand satisfaction. However, the intermittency of renewables and temporal uncertainty in electrical load create great challenges to energy scheduling, especially for small-scale microgrids. Instead of deploying stochastic models to cope with such challenges, this paper presents a retroactive approach to real-time energy scheduling, which is prediction-independent and computationally efficient. Extensive case studies were conducted using 3-year-long real-life system data, and the results of simulations show that the cost difference between the proposed retroactive approach and perfect dispatch is less than 11% on average, which suggests better performance than model predictive control with the cost difference at 30% compared to the perfect dispatch.
      PubDate: 2019-11-01
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762

Your IP address:
Home (Search)
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-