500kV独山变电站无功补偿特性分析及改善措施研究  

Analysis of Reactive Power Compensation Characteristic for 500 kV Dushan Substation and Research on its Improvement Measures

作　　者：田茂城[1] 

机构地区：[1]中国南方电网超高压输电公司贵阳局,贵州贵阳550003

出　　处：《贵州大学学报（自然科学版）》2015年第4期41-45,共5页Journal of Guizhou University:Natural Sciences

基　　金：贵州省科技厅基金项目资助(黔科合J字[2010]2237号);贵州省科技厅基金项目资助(黔科合J字[2008]2212号)

摘　　要：独山变电站的无功补偿系统难以满足南方电网对动态无功补偿的需求,应将并联电容器组和滤波电容器组断路器投切模式改为晶闸管投切模式,以扩大无功补偿的连续调节范围,提高变电站的动态无功补偿能力及交流系统母线电压的快速恢复能力,从而提升交流输电系统的稳定裕度。为此,本文设计一种基于晶闸管投切的动态无功补偿系统,并利用慢速导纳控制将SVC控制与MSC控制相结合,对全站动态无功补偿控制策略及其协调控制原则进行研究。同时,提出一种无功补偿装置协调控制原则,用以满足变电站对无功备用的需求,从而指导工程实际应用中容性无功功率补偿装置的投切。Since the reactive power compensation system of Dushan substation is difficult to meet dynamic de- mand of CSG （ China Southern Power Grid）, it is necessary to transform the breaker switching mode to thyristor switching mode for parallel capacitor and filter capacitor, to expand the scope of dynamical adjustment of reactive power compensation, to improve the fast recovery capacity of substation bus voltage, and to enhance the AC trans- mission system stability. Therefore,a kind of dynamical reactive power compensation system was designed based on thyristor switches, and by use of slow susceptance control, reactive power compensation control strategy and coordinated control principle was studied for the whole substation combined with SVC and MSC control. On the other hand, a reactive power compensation coordination control principle was put forward to meet the demand of substation reactive power reserve for AC system, so as to guide switching of the capacitive reactive power device in engineering practical application.

关 键 词：静止无功补偿器 慢速导纳控制 动态无功补偿控制策略 协调控制原则 无功备用 

分 类 号：TM723[电气工程—电力系统及自动化]