典型非线性负荷与电子式电能表能量计量关系研究  

Study on the Relationship Between Typical Nonlinear Load and Energy Measurement of Electronic Energy Meter

作　　者：刘尧生 苑津莎[1] 刘尧永 田海亭[3] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003 [2]铜山华润电力有限公司,江苏徐州221000 [3]国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司),北京100045

出　　处：《华北电力技术》2016年第8期1-7,共7页North China Electric Power

摘　　要：随着经济的发展,电力系统中非线性负荷日益增多,对电能质量产生一定的影响。电能表计量算法的不同会影响非线性负荷的用电电能计量准确度。对上述问题,主要对几种典型的非线性负荷特性进行了分析,为了能够提高电能表对非线性负荷的用电情况计量的精确度,设计采用小波变换法对非线性负荷用电电能进行计算,并通过实例来验证该算法的精度明显高于其他算法。With the economic development, industrial load and power electronic equipment are increasing day by day. They have a influence on the power quality. Due to the different measurement algorithm of electric energy meter,it will affect the accuracy of power measurement of nonlinear load. On the above issues, several typical nonlinear load charac- teristics were mainly analyzed. In order to improve the electric energy meter＇s measurement accuracy about the nonlinear load＇s electricity situation ,wavelet transform algorithm was used to calculate the nonlinear load＇s electricity situation, and an example was presented to verify the accuracy of the algorithm is significantly higher than other algorithms.

关 键 词：非线性负荷 电子式电能表 小波变换算法 

分 类 号：TM732[电气工程—电力系统及自动化]