基于四象限功率测量的三相交流电相序判别方法  

Approach of Three-Phase AC Phase Sequence Discrimination Based on Four-Quadrant Power Measurement

作　　者：柏华东[1] 段韩路[1] 赵瑜[1] 

机构地区：[1]杭申控股集团杭州之江开关股份有限公司,浙江杭州311234

出　　处：《电工电气》2011年第3期47-50,共4页Electrotechnics Electric

摘　　要：根据四象限功率测量原理,分析了阻抗角和电压相量的四象限分布以及功率状态的四象限分布,提出了一种三相交流电相序判别的新方法。论述了三相交流电相序判断原理,利用交流采样技术实现相序判断。通过Matlab仿真验证表明,该方法实用性强,具有判别简单、判断结果准确等优点。According to the principle of four-quadrant power measurement,analysis was made to the four-quadrant distribution of impedance angle,voltage phasor and power state.A new kind of method to discriminate three-phase AC phase sequence was set forth.The principle of three-phase AC phase sequence discrimination was discussed in detail.AC sampling technology was used to realize phase sequence discrimination.Simulation verification in Matlab shows that this strong practicable method is simple in discriminative way,accurate in discriminative results,and so on.

关 键 词：四象限功率测量 相序判断 90°移相法 

分 类 号：TM933.314[电气工程—电力电子与电力传动]