Reactive Power Control Strategy of DFIG Grid-Connected Wind Farm Based on STATCOM/BESS

doi:10.3969/j.issn.1008-0198.2022.01.003

Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (1): 13-16.doi: 10.3969/j.issn.1008-0198.2022.01.003

• Researches and Tests • Previous Articles Next Articles

Reactive Power Control Strategy of DFIG Grid-Connected Wind Farm Based on STATCOM/BESS

KUANG Wei^1,2, KUANG Honghai^1,2, YU Xiqi³, SU Fuqing^1,2, TAO Cheng^1,2

1. School of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China;
2. Hunan Photovoltaic Smart Grid Control Engineering Research Center, Zhuzhou 412007, China;
3. State Grid Zhuzhou Power Supply Company, Zhuzhou 412000, China

Received:2021-10-12 Revised:2021-11-03 Published:2025-08-05

Abstract

Abstract: Aiming at the system stability problems existing in large-scale grid connection of new energy, this paper analyzes the reactive power compensation capacity of DFIG units, introduces battery energy storage static synchronous compensator (STATCOM / BESS) into DFIG grid connection system, and puts forward a method to maintain the power and voltage stability of DFIG wind power grid connection system by using STATCOM / BESS. Based on the traditional STATCOM reactive power compensation, the battery energy storage is connected in parallel on its DC side, which can quickly and smoothly adjust the active power of the wind farm input and network point, support the system voltage stability, and achieve the function of peak shaving and valley leveling. By comparing the reactive power compensation capability of DFIG, STATCOM and STATCOM / Bess in case of three-phase grounding fault, the results show that the system with STATCOM / Bess has the smallest voltage drop, the fastest recovery speed and the best compensation effect.

Key words: DFIG, STATCOM, BESS, grid connection stability

CLC Number:

TM712

KUANG Wei, KUANG Honghai, YU Xiqi, SU Fuqing, TAO Cheng. Reactive Power Control Strategy of DFIG Grid-Connected Wind Farm Based on STATCOM/BESS[J]. Hunan Electric Power, 2022, 42(1): 13-16.

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Reactive Power Control Strategy of DFIG Grid-Connected Wind Farm Based on STATCOM/BESS

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