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  Subjects -> ELECTRONICS (Total: 207 journals)
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International Journal of Power Electronics
Journal Prestige (SJR): 0.233
Citation Impact (citeScore): 1
Number of Followers: 24  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1756-638X - ISSN (Online) 1756-6398
Published by Inderscience Publishers Homepage  [439 journals]
  • Phase locked loop parameterisation in AC/DC interconnected system for a
           multi-source AGC system under open market environment

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      Authors: Saha Debdeep, Saikia Lalit Chandra
      Pages: 1 - 28
      Abstract: This article emphasises on deregulated AGC of a realistic multi-machine gas - thermal plant with dish-Stirling solar-thermal (DSTS) as additional power generation sources in each control area by taking into accounts of AC/DC with phase locked loop (PLL) dynamics. Eigenvalue analysis confirms the steadiness of the reasonable power system with various interconnections such as AC, AC/DC link and AC/DC with PLL dynamics. A series form of proportional-integral-derivative (PID) namely proportional gain cascaded with integral and double-derivative (PI<SUP align="right">+</SUP>DD<SUP align="right">+</SUP>) controller is employed as secondary controller in each control areas for robust AGC to carry out market transactions under deregulated environment. Exploring the system with different type of interconnections infer that proper tuning of PLL function parameters may synchronise the grid better than without employing PLL. The performance of PI<SUP align="right">+</SUP>DD<SUP align="right">+</SUP> controller along with optimum PLL gains commensurate with wide variations in governor, turbine, fuel and compressor discharge time constant of gas turbine plant.
      Keywords: automatic generation control; dish-Stirling solar thermal; deregulated; eigenvalue; phase locked loop; PLL; series controller
      Citation: International Journal of Power Electronics, Vol. 17, No. 1 (2023) pp. 1 - 28
      PubDate: 2022-12-08T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2023.127545
      Issue No: Vol. 17, No. 1 (2022)
       
  • Performance investigation of a transistor clamped H-bridge inverter-based
           dynamic voltage restorer for mitigating various power quality problems

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      Authors: Humeera Altaf, Abdul Hamid Bhat
      Pages: 29 - 52
      Abstract: This paper presents design and analysis of dynamic voltage restorer (DVR) employing five-level transistor clamped H-bridge (TCHB) inverter that increases the applicability of DVR to medium voltage networks. TCHB inverter is a newly developed topology of multilevel inverters (MLIs) which uses lesser number of components as compared to other topologies. Synchronous reference frame theory (SRFT)-based control algorithm is used for implementation of proposed DVR. The compensation capability of proposed DVR is tested for various voltage related power quality problems like sag, swell, harmonics, imbalance and their combinations through MATLAB/Simulink software and the simulation results are verified experimentally by using digital real-time simulator.
      Keywords: dynamic voltage restorer; DVR; multilevel inverter; MLI; transistor clamped H-bridge inverter; transistor clamped H-bridge; TCHB; medium voltage application; power quality problems
      Citation: International Journal of Power Electronics, Vol. 17, No. 1 (2023) pp. 29 - 52
      PubDate: 2022-12-08T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2023.127546
      Issue No: Vol. 17, No. 1 (2022)
       
  • A novel hybrid discontinuous PWM algorithm for 3L-NPC inverter

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      Authors: Liping Zhong, Song Hu
      Pages: 53 - 77
      Abstract: Wider linear modulation range, less switching loss and simplicity are the goals pursued by various modulation methods of multilevel inverters. This paper proposes a new hybrid discontinuous pulse width modulation (HDPWM) strategy for 3L-NPC inverter that can achieve the above goals to a certain extent. According to the position of the reference voltage vector and the actual situation of the neutral point voltage, different control modes and clamping types are selected. The neutral point voltage is controlled by DPWM strategy, which cannot only greatly reduce the switch loss, but also maintain the balance of the neutral point voltage and expand the linear modulation range. The implementation of the algorithm combines the advantages of carrier-based PWM (CBPWM) and space vector PWM (SVPWM). There is no need to select the nearest three vectors (NTV) and calculate their dwell time. Only the reference voltage needs to be modified according to the control requirements, and then by comparing the modified reference voltage with the carrier, the driver pulse required by the switching devices can be generated. Compared with the existing PWM methods, it is more simple and easy to implement. Experimental results verify the validity of the method.
      Keywords: HDPWM; SVPWM; neutral point voltage balancing; clamping type; output level sequency type
      Citation: International Journal of Power Electronics, Vol. 17, No. 1 (2023) pp. 53 - 77
      PubDate: 2022-12-08T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2023.127547
      Issue No: Vol. 17, No. 1 (2022)
       
  • Optimum regulation of THD profile in multilevel inverter using
           parameter-less AI technique for electrical vehicle application

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      Authors: Kaushal Bhatt, Sandeep Chakravorty
      Pages: 78 - 96
      Abstract: This article proposes investigation on harmonic profile improvement using a novel fitness function in the multiphase multilevel inverter. For the proposed study in this paper, three-phase, seven-level cascaded H-bridge (CHB) multilevel inverter (MLI) is considered. Modulation of the stepped waveform output of the MLI is done using selective harmonic elimination (SHE) method. Many algorithms are proposed for solving the set of nonlinear transcendental trigonometric equations for SHE methods. Teaching learning-based optimisation (TLBO) algorithm is a parameter less optimisation technique. Due to the lack of controlling parameters, the proposed algorithm is most robust among the family of artificial intelligence (AI) techniques. In this paper, an investigation is carried out on a novel fitness function proposed for controlling total harmonic distortion (THD) for the proposed inverter. It is observed that the proposed fitness function improves THD profile below IEEE standards. It is also observed that THD profile obtained through this method is far better than THD profile obtained through various proposed methods so far. The results of THD profile from the MATLAB Simulink simulations are verified experimentally using seven-level three-phase hardware controlled by Arduino MEGA 2560 low-cost controller.
      Keywords: multilevel inverter; artificial intelligent algorithm; teaching learning-based optimisation technique; selective harmonic elimination; SHE; total harmonic distortion; THD
      Citation: International Journal of Power Electronics, Vol. 17, No. 1 (2023) pp. 78 - 96
      PubDate: 2022-12-08T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2023.127548
      Issue No: Vol. 17, No. 1 (2022)
       
  • Design, implementation and performance evaluation of different digital
           control techniques for current controlled DC-DC Buck converter

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      Authors: Dipen M. Vachhani, Rajesh Arya, Uma Rathore Bhatt
      Pages: 97 - 128
      Abstract: The paper presents modelling, control architecture, analysis and design of digital compensators for single feedback-loop voltage mode control as well as two feedback-loop average current mode control and peak current mode control of current controlled DC-DC Buck converter operating in continuous conduction mode with output current as control variable. The compensators are derived using digital redesign approach, simulated on MATLAB, implemented as control algorithms on Texas Instruments' 32-bit TMS320F28069M microcontroller platform, and experimentally validated by testing with a laboratory prototype of current controlled Buck converter. Simulation and experimental results are discussed, compared and evaluated for converter output current performance in tracking reference current signal as well as in regulation against input voltage and load disturbances. Salient features of each control technique are identified and described to determine its suitability in applications of DC-DC converters requiring controlled output current.
      Keywords: digital control techniques; digital voltage mode control; digital average current mode control; digital peak current mode control; current controlled DC-DC Buck converter; continuous conduction mode; digital redesign; digital compensators; type-2 com
      Citation: International Journal of Power Electronics, Vol. 17, No. 1 (2023) pp. 97 - 128
      PubDate: 2022-12-08T23:20:50-05:00
      DOI: 10.1504/IJPELEC.2023.127549
      Issue No: Vol. 17, No. 1 (2022)
       
 
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