电力系统保护与控制2024，Vol.52Issue(8)：20-30,11.DOI:10.19783/j.cnki.pspc.230986
直接电压控制构网型变流器控制参数暂态稳定影响分析
Analysis of transient stability effects of control parameters for direct voltage control grid-forming converters
摘要
Abstract
The current understanding of the evolution of transient instability modes and the mechanism by which control parameters affect transient stability in direct-voltage-controlled grid-forming inverters still requires further in-depth study.First,the impact of two common current limiting strategies on the transient stability of the inverter is analyzed,and three transient instability evolution paths are summarized.Secondly,using the critical clearing time and angle,the rules of how different parameters in the active power section of the inverter affect transient stability are revealed.In the context of the nonlinear relationship between the internal and grid-connected point voltage of direct-voltage-controlled grid-forming inverters,the critical potential energy of the inverter is used as an indicator to disclose the influence rules of different parameters in the reactive power section on transient stability.The mechanisms behind the anomalous patterns of how different control loop parameters affect the transient stability of the inverter are explained.Finally,the correctness of the theoretical analysis is verified through case studies on the PSCAD simulation platform.关键词
构网型变流器/暂态稳定/直接电压控制/有功环节/无功环节Key words
grid-forming converters/transient stability/direct voltage control/active power control/reactive power control引用本文复制引用
杨可昕,鲍颜红,任先成,吴峰,徐泰山,张金龙..直接电压控制构网型变流器控制参数暂态稳定影响分析[J].电力系统保护与控制,2024,52(8):20-30,11.基金项目
This work is supported by the National Key Research and Development Program of China(No.2022YFB2402700). 国家重点研发计划项目资助(2022YFB2402700) （No.2022YFB2402700）
国家电网公司科技项目资助(52272222001J) （52272222001J）
南瑞集团科技项目资助(SGNR0000KJJS2105692) （SGNR0000KJJS2105692）
