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Control of Distributed Generation Using Non-Sinusoidal Pulse Width Modulation

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Computers, Materials & Continua 2023年第2期74卷 4149-4164页

作者： Mehrdad Ahmadi Kamarposhti phatiphat thounthong Ilhami Colak Kei Eguchi Department of Electrical Engineering Jouybar BranchIslamic Azad UniversityJouybar***Iran Renewable Energy Research Centre(RERC) Department of Teacher Training in Electrical EngineeringFaculty of Technical EducationKing Mongkut’s University of Technology North Bangkok1518Pracharat 1 RoadBangsueBangkok10800Thailand Department of Electrical and Electronics Engineering Faculty of Engineering and ArchitecturesNisantasi UniversityIstanbul34398Turkey Department of Information Electronics Fukuoka Institute of TechnologyFukuoka811-0295Japan

The islanded mode is one of the connection modes of the grid distributed generation *** this study,a distributed generation resource is connected to linear and nonlinear loads via a three-phase inverter where a control method needing no current sensors or compensator elements is applied to the distribute generation system in the islanded *** control method has two main loops in each *** first loop controls the voltage control loops that adjust the three-phase point of common coupling,the amplitude of the non-sinusoidal reference waveform and the near-state pulse width modulation(NSPWM)*** next loop compensates the harmonic compensator loop that calculates the voltage harmonics of the point of common coupling in each phase,and injects them to compensate the non-sinusoidal reference waveforms of each *** simulation results in MATLAB/SIMULINK show that this method can generate balanced threephase sinusoidal voltage with an acceptable total harmonic distortion(THD)at the joint connection point.

关键词： Islanded mode distributed generation resource the point of common coupling voltage total harmonic distortion

Optimal Management of Energy Storage Systems for Peak Shaving in a Smart Grid

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Computers, Materials & Continua 2023年第5期75卷 3317-3337页

作者： Firas M.Makahleh Ayman Amer Ahmad A.Manasrah Hani Attar Ahmed A.A.Solyman Mehrdad Ahmadi Kamarposhti phatiphat thounthong Department of Mechanical Engineering Al-Zaytoonah University of JordanAmman11733Jordan Department of Energy Engineering Zarqa UniversityZarqa13133Jordan Department of Electrical and Electronics Engineering Faculty of Engineering and ArchitecturesNisantasi UniversityIstanbul34398Turkey Department of Electrical Engineering Jouybar BranchIslamic Azad UniversityJouybarIran Renewable Energy Research Centre(RERC) Department of Teacher Training in Electrical EngineeringFaculty of Technical EducationKing Mongkut’s University of Technology North Bangkok1518Pracharat 1 RoadBangsueBangkok10800Thailand

In this paper,the installation of energy storage systems(EES)and their role in grid peak load shaving in two echelons,their distribution and generation are ***,the optimal placement and capacity of the energy storage is taken into consideration,then,the charge-discharge strategy for this equipment is ***,Genetic Algorithm(GA)and Particle Swarm Optimization(PSO)are used to calculate the minimum and maximum load in the network with the presence of energy storage *** energy storage systems were utilized in a distribution system with the aid of a peak load shaving ***,the battery charge-discharge is managed at any time during the day,considering the load consumption at each *** results depict that the load curve reached a constant state by managing charge-discharge with no significant *** shows the significance of such matters in terms of economy and technicality.

关键词： Cost energy storage particle swarm optimization(PSO) peak load smart grid

Optimal Allocation of STATCOM to Enhance Transient Stability Using Imperialist Competitive Algorithm

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Intelligent Automation & Soft Computing 2023年第6期36卷 3425-3446页

作者： Ayman Amer Firas MMakahleh Jafar Ababneh Hani Attar Ahmed Amin Ahmed Solyman Mehrdad Ahmadi Kamarposhti phatiphat thounthong Department of Energy Zarqa UniversityZarqa13133Jordan Department of Mechanical Engineering Al-Zaytoonah University of JordanAmman11733Jordan Abdul Aziz Al Ghurair School of Advanced Computing(ASAC) Luminus Technical University CollegeJordan Department of Electrical and Electronics Engineering Faculty of Engineering and ArchitecturesNisantasi UniversityIstanbulTurkey Department of Electrical Engineering Jouybar BranchIslamic Azad UniversityJouybarIran Renewable Energy Research Centre(RERC) Department of Teacher Training in Electrical EngineeringFaculty of Technical EducationKing Mongkut’s University of Technology North Bangkok1518Pracharat 1 RoadBangsueBangkok10800Thailand

With the daily expansion of global energy consumption,developing the power grids is of uttermost ***,building a new trans-mission line is costly and time-consuming,so utilizing the same lines with possible higher transmission capacity is very *** this regard,to increase the capacity of the transmission lines,the flexible alternating current transmission system(FACTS)has been widely used in power grids in recent years by industrialized *** of the essential topics in electrical power systems is the reactive power compensation,and the FACTS plays a significant role in controlling the reactive power current in the power grid and the system voltage oscillations and *** a static synchronous compensator(STATCOM)is embedded in a power system to increase the bus voltage,a supplementary damping controller can be designed to enhance the system oscillation *** the expansion of the grids in the power system,the complexity of their optimization and the extraordinary ability of the imperialist competitive algorithm(ICA)for solving such problems,in this paper,the ICA has been used to determine the optimal position and size of the FACTS devices.

关键词： STATCOM FACTS optimization transient stability imperialist competitive algorithm

Optimal Operation of Distributed Generations Considering Demand Response in a Microgrid Using GWO Algorithm

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Computer Systems Science & Engineering 2023年第10期47卷 809-822页

作者： Hassan Shokouhandeh Mehrdad Ahmadi Kamarposhti William Holderbaum Ilhami Colak phatiphat thounthong Department of Electrical Engineering Semnan UniversitySemnanIran Department of Electrical Engineering Jouybar BranchIslamic Azad UniversityJouybarIran School of Science Engineering and EnvironmentUniversity of SalfordSalfordUK Department of Electrical and Electronics Engineering Faculty of Engineering and ArchitecturesNisantasi UniversityIstanbulTurkey Renewable Energy Research Centre(RERC) Department of Teacher Training in Electrical EngineeringFaculty of Technical EducationKing Mongkut’s University of Technology North Bangkok1518Pracharat 1 RoadBangsueBangkok10800Thailand

The widespread penetration of distributed energy sources and the use of load response programs,especially in a microgrid,have caused many power system issues,such as control and operation of these networks,to be *** control and operation of many small-distributed generation units with different performance characteristics create another challenge for the safe and efficient operation of the *** this paper,the optimum operation of distributed generation resources and heat and power storage in a microgrid,was performed based on real-time pricing through the proposed gray wolf optimization(GWO)algorithm to reduce the energy supply cost with the *** generation resources such as solar panels,diesel generators with battery storage,and boiler thermal resources with thermal storage were used in the studied ***,a combined heat and power(CHP)unit was used to produce thermal and electrical energy *** the simulations,in addition to the gray wolf algorithm,some optimization algorithms have also been *** the results of 20 runs for each algorithm confirmed the high accuracy of the proposed GWO *** results of the simulations indicated that the CHP energy resources must be managed to have a minimum cost of energy supply in the microgrid,considering the demand response program.

关键词： Microgrid demand response program cost reduction gray wolf optimization algorithm