电力系统自动化2019，Vol.43Issue(2)：176-181,6.DOI:10.7500/AEPS20180315007
分层接入方式下锡泰特高压直流输电系统阀组电压平衡控制
Voltage Balance Control of Valves in Hierarchical Connection Mode for Ximeng-Taizhou UHVDC System
摘要
Abstract
800kV ultra-high voltage direct current (UHVDC) transmission project from Ximeng to Taizhou is hierarchically connected to 1 000kV and 500kV AC grid in Taizhou converter station.As for this new circuit structure, it is very important how to ensure the DC voltage balance of two series valve groups connected to different voltage level AC grid in one pole for the safe and stable operation of HVDC transmission system.Combined with the UHVDC project from Ximeng to Taizhou, on the basis of the analysis of the control strategy of the DC transmission system, the voltage balance control of the series valve groups is studied, and the control strategy of voltage balance and the fault tolerance method of middle point divider are put forward.The RTDS modeling test verifies the correctness of the control strategy and achieves good application results in the HVDC project from Ximeng to Taizhou.关键词
特高压直流/分层接入方式/控制系统/电压平衡控制/预测型熄弧角控制/定电流控制/定电压控制Key words
ultra-high voltage direct current (UHVDC)/hierarchical connection mode/control system/voltage balance control/predictive arc extinction angle control/constant current control/constant voltage control引用本文复制引用
郭宏光,吴彦维,陈大鹏,王亚涛,李楠,周晓风..分层接入方式下锡泰特高压直流输电系统阀组电压平衡控制[J].电力系统自动化,2019,43(2):176-181,6.基金项目
国家重点研发计划资助项目 (2016YFB0900600) （2016YFB0900600）
国家电网公司科技项目 (52094017000W).This work is supported by National Key R&D Program of China (No. 2016YFB0900600) and State Grid Corporation of China (No. 52094017000W) （52094017000W）
