An optimized control switching strategy for STATCOM/BESS reactive power output

Na Wu; Chengyong Zhao; Hongyang Yu; Zhichang Yang; Xiaoge Liu

doi:10.1117/12.2686383

10 August 2023 An optimized control switching strategy for STATCOM/BESS reactive power output

Na Wu, Chengyong Zhao, Hongyang Yu, Zhichang Yang, Xiaoge Liu

Proceedings Volume 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023); 127590J (2023) https://doi.org/10.1117/12.2686383
Event: 2023 3rd International Conference on Automation Control, Algorithm and Intelligent Bionics (ACAIB 2023), 2023, Xiamen, China

Abstract

In recent years, STATCOM/BESS (Static Synchronous Compensator/Battery Energy Storage System) has received widespread attention due to its superior power four-quadrant output characteristics. To address the problem of delayed reactive power withdrawal and voltage fluctuations in compensating traditional DC transmission under large disturbances, a fast and effective outer-loop control switching strategy has been proposed. Under small disturbances, a constant bus voltage control method based on PI control is adopted to provide real-time and complete compensation of the receiving end voltage, maintaining the receiving-end bus voltage at the rated value. Under large disturbances, the control mode is switched to open-loop control with constant reactive power, without the delay of the PI loop, enabling timely withdrawal of reactive power upon fault clearance and ensuring stable receiving-end voltage. The proposed control strategy was verified by simulation on the PSCAD/EMTDC platform, demonstrating its feasibility and effectiveness.

Citation Download Citation

Na Wu, Chengyong Zhao, Hongyang Yu, Zhichang Yang, and Xiaoge Liu "An optimized control switching strategy for STATCOM/BESS reactive power output", Proc. SPIE 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023), 127590J (10 August 2023); https://doi.org/10.1117/12.2686383

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