A control method for virtual synchronous generators in microgrids under voltage unbalance

Yuncan Gao; Qingfang Teng; Xiping Ma

doi:10.1117/12.3014977

4 March 2024 A control method for virtual synchronous generators in microgrids under voltage unbalance

Yuncan Gao, Qingfang Teng, Xiping Ma

Proceedings Volume 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023); 1298151 (2024) https://doi.org/10.1117/12.3014977
Event: 9th International Symposium on Sensors, Mechatronics, and Automation (ISSMAS 2023), 2023, Nanjing, China

Abstract

Microgrid generation can lead to significant stochastic energy fluctuations, which can subsequently impact the reliable and stable operation of the entire power network. Virtual Synchronous Generator (VSG) technology offers an effective way to emulate the characteristics of synchronous generators. To address voltage imbalance in microgrids, a dual-closed loop reactive power voltage control method is proposed based on the mathematical model of synchronous generators. The complete control system for the Virtual Synchronous Generator is designed, incorporating a full-state observer to monitor the droop control coefficient of active power and the changing status of reactive power. Additionally, a reactive power voltage controller is designed to accommodate varying voltage amplitude states of the Virtual Synchronous Generator during different time periods. The proposed control method is verified through a simulation model constructed using the MATLAB/Simulink platform. The results indicate that the control method, which utilizes self-tuning and self-setting power coefficients, enables the Virtual Synchronous Generator to effectively manifest its characteristics.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuncan Gao, Qingfang Teng, and Xiping Ma "A control method for virtual synchronous generators in microgrids under voltage unbalance", Proc. SPIE 12981, Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023), 1298151 (4 March 2024); https://doi.org/10.1117/12.3014977

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