配电网静止同步补偿器无功检测方法的研究  

Research on Detecting Method of STATCOM in Distribution System

作　　者：陈莉[1] 

机构地区：[1]西安铁路职业技术学院,陕西西安710014

出　　处：《甘肃科学学报》2013年第3期67-69,共3页Journal of Gansu Sciences

摘　　要：无功检测方法是实现配电系统静止同步补偿器(DSTATCOM)功能的核心环节,研究论述了系统的发展状况,将DSTATCOM的工作原理从电路结构上进行了分析,并基于等值电路建立了其数学模型.在无功检测环节中,电网电压的同步信号通过相关算法来提取,可以有效地避免电网电压谐波分量对检测方法精度和准确性的影响.结果表明:采用的相关算法实现了无功功率的检测,测试结果与电力分析仪误差在4.2%左右,说明了新检测方法的正确性和准确性.The detecting method of reactive power is the key to the accomplishment of various functions of DSTATCOM.The current development of static synchronous compensator,DSTATCOM,is discussed.Its working principle is analyzed through its circuit structure.Then the mathematical model is established based on the equivalent circuit.In the detecting unit of reactive power,the correlation theory is used to extract the synchronous signal of the utility,which avoids the effect of harmonics on detecting precision and correctness.Compared with the result from the power analyzer,its error maintains about 4.2%.The method proposed in this paper is testified to be correct.

关 键 词：静止同步补偿器 检测方法 相关检测 

分 类 号：TN713.8[电子电信—电路与系统]