电力系统及其自动化学报2025，Vol.37Issue(5)：101-112,12.DOI:10.19635/j.cnki.csu-epsa.001532
混合级联型高压直流输电系统后续换相失败机理
Mechanism of Subsequent Phase Commutation Failure in Hybrid Cascaded HVDC Transmission System
李欣然 1陈海鹏1
作者信息
- 1. 现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林 132012
- 折叠
摘要
Abstract
To clarify the mechanism of impacts of inverter-side AC faults in a high-voltage direct current(HVDC)trans-mission system on the interactions between controllers and the subsequent phase commutation failure,the topology of a hybrid cascaded HVDC transmission system is used to analyze the transient phase commutation process on the inverter side in detail.The key factors including the fluctuation range of AC bus voltage,rate of DC current recovery and extinc-tion angle measurement error,which may act either individually or in combination,are discussed.On this basis,the mechanism of phase commutation in terms of fault timing and fault severity is revealed.Simulation results based on PSCAD/EMTDC demonstrate the specific impacts under different fault conditions.关键词
混合级联高压直流输电系统/后续换相失败机理/换相过程/故障程度/故障时刻Key words
hybrid cascaded high-voltage direct current(HVDC)transmission system/mechanism of subsequent phase commutation failure/commutation process/fault severity/fault timing分类
动力与电气工程引用本文复制引用
李欣然,陈海鹏..混合级联型高压直流输电系统后续换相失败机理[J].电力系统及其自动化学报,2025,37(5):101-112,12.
