电力系统保护与控制2024，Vol.52Issue(1)：145-155,11.DOI:10.19783/j.cnki.pspc.230725
储能型STATCOM的优化电压支撑控制策略
Optimized voltage support control strategy for energy storage STATCOM
摘要
Abstract
A comprehensive fault detection and active/reactive power output control strategy for energy storage STATCOM is proposed,which addresses the issue of transient voltage instability caused by grounding faults at the receiving-end converter station in high-voltage direct current(HVDC)transmission systems.The energy storage STATCOM possesses the capability of four-quadrant power operation,and by coordinating the active and reactive power output of the device,the voltage support effect can be optimized.First,an improved fault detection method is introduced,which utilizes dual detection to quickly determine the start and end times of faults.Second,during the fault period,the energy storage STATCOM is controlled to output a certain amount of active power,effectively suppressing continuous commutation failures at the receiving end and raising the minimum value of the AC voltage.Simultaneously,control switching of reactive power is implemented to avoid transient overvoltage issues at the receiving end caused by delayed reactive power withdrawal after fault clearance.The proposed voltage support control strategy is compared with conventional control of energy storage STATCOM using the PSCAD/EMTDC simulation platform based on the CIGRE standard system.The results indicate that the proposed control strategy achieves optimized voltage support effects in different fault scenarios.关键词
储能型STATCOM/故障检测/换相失败/无功切换策略/暂态过电压Key words
energy storage STATCOM/fault detection/commutation failure/reactive power switching strategy/transient overvoltage引用本文复制引用
吴娜,赵成勇,许建中..储能型STATCOM的优化电压支撑控制策略[J].电力系统保护与控制,2024,52(1):145-155,11.基金项目
国家自然科学基金面上项目资助(52277094) （52277094）
国家电网公司总部科技项目资助(5500-202158475A-0-5-ZN) This work is supported by the General Program of National Natural Science Foundation of China(No.52277094). （5500-202158475A-0-5-ZN）
