An Improved Adaptive Inertia and Damping Combination Control of Virtual Synchronous Generator

When the islanded microgrid is subject to a large power disturbance, the fixed-parameter virtual synchronous generator (VSG) control can provide inertia and damping for the system, but it cannot guarantee the frequency adjustment performance and the control flexibility is poor. To solve this problem...

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Bibliographic Details
Published inIECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society pp. 1 - 6
Main Authors Shi, Qiguo, Du, Chunshui, Sun, Yongchao, Cai, Wenlu, Wang, Aiping, Chui, Dezheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 13.10.2021
Subjects
Adaptation models
adaptive control
Damping
Industrial electronics
microgrid inverter
Microgrids
Stability analysis
Synchronous generators
Time-frequency analysis
virtual synchronous generator (VSG)
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Summary:When the islanded microgrid is subject to a large power disturbance, the fixed-parameter virtual synchronous generator (VSG) control can provide inertia and damping for the system, but it cannot guarantee the frequency adjustment performance and the control flexibility is poor. To solve this problem, this paper proposes an improved adaptive virtual synchronous generator control strategy. In particular, the proposed method introduces the frequency deviation and frequency change rate into the VSG virtual parameters, adaptively adjusting the inertia and damping parameters of VSG system to improve the frequency stability of microgrid when power suddenly changed. Both MATLAB/Simulink simulation and hardware-in-the-loop results based on StarSim demonstrate the superiority of the proposed method compared with fixed-parameter VSG control.
ISSN:2577-1647
DOI:10.1109/IECON48115.2021.9589784