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  Subjects -> ELECTRONICS (Total: 207 journals)
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Advances in Electrical and Electronic Engineering
Journal Prestige (SJR): 0.274
Citation Impact (citeScore): 1
Number of Followers: 11  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1336-1376 - ISSN (Online) 1804-3119
Published by VSB-Technical University of Ostrava Homepage  [2 journals]
  • Performance Comparison Of A Six Phase Surface-Mounded Pmsm With Inner And
           Outer Rotor Types For High Torque Applications

    • Authors: Vuong Quoc Dang, Trinh Cong Truong, Thanh Nguyen Vu, Ha Vo Thanh
      Abstract: Permanent magnet synchronous motors (PMSMs) have gained many interests in various industrial applications due to its high efficiency, reliable perfaromance, simple structure and various shapes and sizes. In addition, due to the high-torque and low-speed, the PMSM has a wide usage in traction applications, e.g. trucks, ship propulsion, mining, etc. So far, many papers working on three phase PMSMs have been published. But, to improve the fault tolerance and reliability of three-phase PMSM, the six-phase motors has been proposed to use in applications demanding high reliability. However, there are still significant limitations in the quantity of research on this motor type. Particularly, when researching this type of motor, authors mainly have provided specifications of six-phase PMSMs and then conducted experiments on these machines without giving the detailed formulations to compute and analyse electromagnetic parameters of six-phase PMSMs. In this research, an analytic model is first developed to determine the main parameters of the a six-phase surface-mounted permanent magnet synchronous motor (SPMSM). The finite element method (FEM) is then introduced to simulate and compute electromagnetic parameters, such as the current waveform, back EMF, flux density distribution, torque, cogging torque, torque ripple and harmonic components. The development of the proposed methods is applied on the practical problem of a six-phase PMSM of 7.5kW.
      PubDate: 2024-06-30
      Issue No: Vol. 22 (2024)
       
  • A Hybrid Dynamic Nonlinear Controller for Variable Speed Wind Turbine in
           Low Wind Velocity Regime

    • Authors: EL Kabira EL Mjabber, Abdellatif Khamlichi
      Abstract: The purpose of this paper is to propose a new control approach to be applied to a variable rotor speed wind turbine at low wind velocity zone. The aim is to reduce dynamic mechanical loads and optimize energy production by acting on the generator torque through a new hybrid adaptive controller. This combines two well-known nonlinear methods: nonlinear control based on Radial Basis Function Neural Networks used to estimate the nonlinear part of the wind turbine system and Integral Sliding Mode Control to tackle system uncertainties. Lyapunov’s approach has been applied to assess stability of this new controller. Then, simulations were carried out using the Matlab/Simulink software package. The obtained results demonstrated superior performance of the hybrid controller compared to each controller taken alone.
      PubDate: 2024-06-29
      Issue No: Vol. 22 (2024)
       
  • ACTIVE PHASED ARRAY ANTENNA WITH PARALLEL FEEDER EXCITATION AT 3.7 GHZ

    • Authors: Yuri PALANIZA, Anatoliy MARTSENIUK, Volodymyr Yaskiv
      Abstract: The Earth's population has grown from a hyperbolic rate to a slower one, reaching 8.04 billion in 2023. The growth rate has dropped from 2% to 0.84% per year, due to lower birthrates, COVID-19, urbanization and income levels. The number of elderly people has surpassed the number of young children. The text discusses how the increasing and aging population requires better health care and diagnosis, which can be achieved by using modern technologies like the Internet of Things, smart city, and 5G. This causes an increase in the level of electromagnetic radiation, which is concerning because of the electromagnetic sensitivity of medical devices and systems. This article discusses how electromagnetic interference (EMI) affect medical devices and systems in hospitals and healthcare environments. It explains what EMI are, how it can cause problems for medical devices and systems such as pacemakers, defibrillators, neurostimulators, etc., what are the main sources of EMI such as emergency radios, diathermy, mobile phones, RFID devices, electromagnets, etc., and how to prevent or minimize such risks. Discusses 5G mobile communication, which is becoming increasingly popular, especially the n77 3.7 GHz 5G band as reported by Opensignal recently. However, in urban settings, especially in the medical campus area, a major challenge is the level of electromagnetic interference, which can adversely affect the performance of sensitive medical devices/equipment. The use of the proposed antenna array can help to reduce these challenges by using the beam scanning technique. Design a 7-by-7 rectangular array of antenna elements with 0.5*lambda spacing on a PCB using the Phased Array System Toolbox. Align the array normal with the same-parallel direction to create a maximum coverage area in the geographic azimuth, where single antenna element type is dipole antenna element with a reflector.
      PubDate: 2024-06-29
      Issue No: Vol. 22 (2024)
       
  • Adaptive Notch Filter in Bandwidth as OSG for a PLL

    • Authors: Luciano Emilio Belandria, Nancy Alejandra AGUDELO, Hector BOHORQUEZ, Joan Gabriel BERGAS-JANE
      Abstract: This paper presents a new structure of an Orthogonal Signal Generator for a Phase Locked Loop (OSG-PLL), utilizing an Adaptive Notch Filter (ANF) in bandwidth as the foundation. The ANF employed to generate the orthogonal system within the Phase Locked Loop (PLL), is implemented from the parallel configuration of several Bandpass Filters (BPF), starting from a lattice-structured All-Pass Filter (APF). This approach offers benefits such as simplicity and reduced sensitivity to coefficient rounding in fixed-point Digital Signal Processor (DSP) implementations. The bandwidth changes adaptively by adjusting and achieving the optimization of the filter coefficients. Two adaptation algorithms are proposed, studied, and analyzed, one utilizing Gradient Descent (GD) and another based on Proportional Control of Maximum Error (ME). A series of comparative simulations are conducted using MATLAB software to validate the most effective method among the two described algorithms. The simulation results from MATLAB and the experimental results from a fixed-point digital signal processor (DSP), specifically the TMS320F812, are showcased and examined to assess the effectiveness of the algorithm of proportional control of the ME, which has been selected as the superior alternative, thereby supporting its theoretical development.
      PubDate: 2024-06-29
      Issue No: Vol. 22 (2024)
       
  • Design of A Real-Time Solar Power Monitoring and Controlling System Using
           Internet of Things

    • Authors: Tran Thanh Trang, Le Thanh Toi, Tran Huu Khoa
      Abstract: In this research, the system is designed to monitor parameters of residential solar power sources such as voltage, current, power capacity, power factor and energy consumption. These parameters are measured by a highly accurate PZEM circuit and the specifications are suitable for residential solar power sources. Measurement results will be sent to the main control circuit (ARM controller) via the UART communication standard to analyze and filter the necessary data. The data of that parameter will then be displayed at the system installation site using the TFT screen. After an installation period, the control circuit will send measurement parameters to the dedicated WiFi module (ESP32), the WiFi module will continue to send parameters to the cloud server for storage and monitoring. The system also builds applications that run on many operating systems, can access data, and display data in real time using IoT technology. From the results, evaluating the performance and stability of the solar power source is done simply and easily, helping users detect and promptly handle incidents that occur, as well as such as providing maintenance plans to ensure the most optimal operation of solar power sources. In addition, the designed system also has the function of remotely controlling on/off the solar power supply to the loads when an incident occurs, ensuring safety for the electrical system.
      PubDate: 2024-06-29
      Issue No: Vol. 22 (2024)
       
  • Multi-Layer Networks and Routing Protocols for Aquatic Robotic Swarm
           Management

    • Authors: Maria MANNONE, Peppino Fazio, Norbert MARWAN, Achille GIACOMETTI
      Abstract: The paradigm of multi-layer networks can help devise a set of robotic swarms interacting with mobile computing centrals. We present here a network and routing modeling for swarm robotics in aquatic environment, modeled upon multi-layer networks. Joining concepts and techniques from different disciplines allows us building a robust system with potential practical applications in scenarios such as environmental care. We discuss our results and further developments of the proposed approach.
      PubDate: 2024-06-29
      Issue No: Vol. 22 (2024)
       
  • An improved voltage model based on stator resistance estimation for FOC
           technique in the induction motor drive

    • Authors: Dinh Hoang Bach, Cuong Dinh TRAN
      Abstract: The paper presents an improvement in estimating the rotor flux angle using the voltage model of the field-oriented control (FOC) technique for the induction motor speed control. The voltage model uses the inputs including the stator voltages and current signals to estimate the rotor flux angle for FOC method. However, the inaccuracy of the stator resistance value can affect the estimation of the rotor flux angle, leading to a decline in the performance of the control method. An adaptive tuning method based on the machine model is used to estimate the stator resistance to enhance the accuracy of the rotor flux angle in the FOC method. Simulations of the induction motor drive (IMD) operating in test cases of stator resistance variations have been performed to verify the effectiveness of the proposed method.
      PubDate: 2024-06-28
      Issue No: Vol. 22 (2024)
       
  • THE FUTURE OF SUSTAINABLE AGRICULTURE: A REVIEW OF IOT AND AUTONOMOUS
           CONTROL IN VERTICAL HYDROPONIC FARMING

    • Authors: Kaiyisah Hanis Mohd Azmi, Nurul Asyikin Mohamed Radzi, Ayuniza Ahmad
      Abstract: By 2050, the global population is expected to exceed 9.7 billion, increasing the demand for food production. Traditional farming operations cannot supply the exponential food demand due to land, water, and resource limits. Vertical hydroponic (VHF) systems, which enable hydroponically growing plants in space-constrained situations such as high-rise buildings and inside structures, could be a promising solution to these difficulties. Furthermore, smart technologies such as the Internet of Things (IoT) and autonomous control systems (ACS) can be used to improve the efficiency and productivity of these systems. The combination of IoT and ACS in VHF can give several advantages, including increased efficiency, productivity, and sustainability. Nonetheless, there are challenges and limitations associated with the application of these systems. Thus, this research presented a thorough examination of the function of IoT and ACS in VHF. This paper also explored the benefits and obstacles of deploying these systems, as well as future research opportunities in this field. Finally, this article demonstrated how IoT and ACS have the potential to change agriculture and handle the growing demand for food production in a sustainable manner
      PubDate: 2024-06-28
      Issue No: Vol. 22 (2024)
       
  • COMPARISON OF MPPT ALGORITHMS FOR DC-DC BOOST CONVERTER IN GRID-TIED
           PHOTOVOLTAIC SYSTEMS

    • Authors: Nabila Shehata, Ahmed E. A. Hussien, Walid S. E. Abdellatif, Praveen C Ramamurthy, Ahmed Emad-Eldeen
      Abstract: In unpredictable weather circumstances, a maximum power point tracking (MPPT) approach is critical for ensuring maximum photovoltaic (PV) output power is extracted. In This paper we will compare the incremental conductance algorithm (IC) , ρerturb and Observe (ρ& o) ,and the fuzzy logic controller (FLC) as maximum power point tracking (MPPT) techniques. The three algorithms were used on a photovoltaic energy conversion system that was linked to a grid. The suggested methodologies investigate the photovoltaic (PV) system's solar energy conversion performance under various irradiance and temperature circumstances. Lastly, a performance comparison between IC , P O, and FLC has been performed, demonstrating the superiority of the fuzzy controller over the other approaches. FLC converts photovoltaic electricity readily, reducing fluctuations, and it responds quickly to variations in solar irradiation (shading effect). The simulation results demonstrate that the controller using fuzzy logic performs well, allowing the inverter to convert electricity provided by the solar panels.
      PubDate: 2024-06-28
      Issue No: Vol. 22 (2024)
       
 
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  Subjects -> ELECTRONICS (Total: 207 journals)
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