浙江电力2025，Vol.44Issue(12)：107-113,7.DOI:10.19585/j.zjdl.202512010
受端换流站换流变分接开关控制功能优化研究
Control function optimization for tap changers in receiving-end converter station transformers
摘要
Abstract
To address the frequent operations of converter transformer tap changers in ultra-high voltage direct cur-rent(UHVDC)transmission projects,this paper analyzes the control logic and parameters of tap changers in receiving-end converter stations.The root causes of frequent operations are investigated by examining power regula-tion and AC voltage variation.Two optimization strategies are proposed:(1)a dynamic voltage regulation strategy based on predictive extinction angle control,and(2)a dynamic voltage regulation strategy based on DC voltage con-trol.The effectiveness of both strategies is verified through real-time digital simulator(RTDS)-based simulation models.Results demonstrate that while Strategy 1 significantly reduces tap-changer operations at the cost of certain DC voltage operating levels,Strategy 2 effectively decreases operations while maintaining DC voltage stability,al-beit requiring substantial modifications to existing control strategies.Both strategies demonstrate satisfactory optimi-zation effects in simulations and engineering practice,providing effective solutions to reduce tap-changer operations.关键词
换流站/换流变分接开关/直流电压控制/动作次数/RTDS仿真Key words
converter station/converter transformer tap-changer/DC voltage control/operation count/RTDS-based simulation引用本文复制引用
龚凌云,钱松林,侯贺伟,年长春..受端换流站换流变分接开关控制功能优化研究[J].浙江电力,2025,44(12):107-113,7.基金项目
国家电网有限公司科技项目(521101230011) （521101230011）
