微电网的电能质量及改善方法研究  

Study on Power Quality of Microgrid and Improvement Methods

作　　者：黎金英 艾欣[1] 邓玉辉[1] 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电力科学与工程》2015年第1期54-60,71,共8页Electric Power Science and Engineering

摘　　要：对微电网中的分布式电源的电能质量问题进行了分析,结合微电网运行的特点提出了相应的电能质量改善方法及控制策略。提出了有源滤波器(APF)和静止无功补偿器(SVC)联合运行改善电能质量的方法,APF和负载并联接入微电网,通过滤除谐波电流,其电流检测常用ip-iq方法;由于晶闸管控制电抗器(TCR)与晶闸管投切电容器(TSC)构成的静止无功补偿器,装设在微电网负载侧,采用对称分量法计算。通过Matlab/Simulink的仿真结果表明,该有源滤波器和静止无功补偿器联合运行的方法对改善微电网电能质量是有效的。The power quality issues of the distributed generation in the microgrid are analyzed in combination with the operational characteristics of the microgrid to suggest corresponding power quality improving method and control strategy. The improving power quality method is proposed, which used the active power filter （APF） operate in combination with the static var compensator （SVC）. Among them, the APF is connected to the grid in parallel with loads, controlled by using harmonic filtered current, measured by ip-iq current detecting method. Whereas, the static reactive power compensator composes of the thyristor controlled reactor （TCR） and thyristor switched capaci- tor （TSC） installed in the mierogrid＇s load side, using the symmetrical component method for calculation. Matlab/ Simulink simulation results show that the combined operation method of the active filter and the static reactive power compensator is effective on improving the power quality of the microgrid.

关 键 词：微电网 分布式电源 电能质量 有源滤波器 静止无功补偿器 

分 类 号：TM727[电气工程—电力系统及自动化]