电力系统及其自动化学报2019，Vol.31Issue(6)：137-142,6.DOI:10.3969/j.issn.1003-8930.2019.06.021
变电站混合无功补偿系统的优化控制策略
Optimal Control Strategy for Hybrid Reactive Power Compensation System in Transformer Substation
摘要
Abstract
In consideration of the hybrid reactive power compensation system in a transformer substation,which con?sists of a static synchronous compensator(STATCOM),parallel filter capacitors(FCs),and parallel reactors(PRs), a fuzzy algorithm-based coordinated control strategy is proposed. By real-time monitoring the ratio of STATCOM average reactive power in the previous 1 min,this strategy derives the changes of the transformer station’s voltage reference on the high-voltage side in the next 1 s by means of a fuzzy algorithm-based voltage controller;at the same time,the pro?posed strategy determines the operation statuses of FC and PR by real-time monitoring the voltage on the high-voltage side of the transformer station and the ratio of STATCOM average reactive power in the previous 10 min. This strategy can not only maintain the system voltage in a reasonable range,control the STATCOM output reactive power,and regu?late the system’s dynamic reactive power backup capacity,but also reduce the switching times of FC and PR and thus extend their lifetime. Simulation results verify the correctness and effectiveness of the proposed control strategy.关键词
变电站/静止同步补偿器/并联滤波电容器/并联电抗器/模糊算法Key words
transformer substation/static synchronous compensator/parallel filter capacitor/parallel reactor/fuzzy algo⁃rithm分类
信息技术与安全科学引用本文复制引用
张坤,张可人,罗潇,童小娇..变电站混合无功补偿系统的优化控制策略[J].电力系统及其自动化学报,2019,31(6):137-142,6.基金项目
国家自然科学基金资助项目(11671125) （11671125）
