瞬时无功理论在快速动态无功补偿装置中的应用  

Application of instantaneous reactive theory in dynamic var compensation

作　　者：翁海霞[1] 赵建国[1,2] 孙树敏[3] 

机构地区：[1]山东大学电气工程学院,山东济南250061 [2]国家电网技术学院,山东济南250061 [3]山东电力研究院,山东济南250061

出　　处：《电力自动化设备》2012年第1期116-118,122,共4页Electric Power Automation Equipment

摘　　要：介绍了一种动态无功补偿装置——晶闸管投切电容器(TSC),分析了其主要结构及其特点。兼顾信号检测准确性和快速性的响应要求,结合TSC的结构和工作原理,引入了一种基于瞬时无功理论的信号检测新方法。首先定义了瞬时有功功率和瞬时无功功率等概念,在此基础上给出了瞬时有功-无功检测的实现方法。在MATLAB电力仿真环境下进行了仿真试验。结果表明该算法能快速准确地检测TSC系统中的无功功率,满足TSC动态响应的要求。TSC（Thyristor Switching Capacitor）,a kind of dynamic reactive power compensation device,is presented. Its structure and characteristics are analyzed. With the consideration of both detection accuracy and fast response,a method of signal detection based on instantaneous reactive power theory is proposed according to the structure and working principle of TSC. The concept of instantaneous active and reactive power is defined and its implementation is discussed. Simulation is carried out with MATLAB and results show that,it detects the reactive power of TSC system quickly and effectively and meets its requirement for dynamic response.

关 键 词：晶闸管投切电容器 补偿 瞬时无功理论 瞬时有功-无功检测 仿真 

分 类 号：TM714.3[电气工程—电力系统及自动化]