首页|Control of Virtual Synchronous Generator for Frequency Regulation Using a Coordinated Self-adaptive Method

Control of Virtual Synchronous Generator for Frequency Regulation Using a Coordinated Self-adaptive Method

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Power inverter adopting virtual synchronous gener-ator(VSG)control can provide inertia support for distributed generation systems.However,it cannot take into account the dynamic regulation characteristics of frequency.Thus,when the system encounters a sudden change in load or disturbance,the dynamic process of frequency regulation will be greatly influenced.In view of this issue,an improved VSG control strategy based on a coordinated self-adaptive(CSA)method is proposed.The time domain analysis method is used to study the influences of virtual inertia and damping parameter perturbation on the system steady and dynamic performances.Furthermore,in order to make the control strategy suitable for large load changes and suppress frequency variations beyond the limit,the secondary frequency modulation is introduced into the control loop.Through the coordinated adaptive control of virtual inertia,virtual damping and frequency modulation,the dynamic perfor-mance of VSG frequency regulation can be obviously improved.Simulation and experiment results have verified the effectiveness of the proposed CSA control strategy.

Coordinated self-adaptive methodfrequency regulationtime domain analysisvirtual synchronous generator

Hongwei Fang、Zhiwei Yu

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School of Elec-trical and Information Engineering and Key Laboratory of Tianjin Electric Power System Simulation and Control,Tianjin University,Tianjin 300072,China

School of Electrical and Information Engineering and Key Laboratory of Tianjin Electric Power System Simulation and Control,Tianjin University,Tianjin 300072,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of China

5157712451877148SQ2023YFE0198100

2024

10.17775/CSEEJPES.2020.01950

中国电机工程学会电力与能源系统学报(英文版)
中国电机工程学会

中国电机工程学会电力与能源系统学报(英文版)

CSTPCDEI
ISSN：2096-0042
年,卷(期)：2024.10(1)
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