摘要
在单相电路的谐波和无功电流检测中,当只需补偿高次谐波,即无需单独检测电流中的基波有功分量或无功分量时,根据正弦函数的正交特性,提出了一种新的谐波和基波电流检测方法。它不需要采用固定频率的滤波器,且不需要锁相环,电路结构简单,易于实现。
During the process of detection for harmonic and reactive currents in single-phase circuit, while only higher harmonic currents need to be compensated, it is to say that you need not detect the fundamental active or reactive current componets in singly. Based on the orthogonality of sine, presents a new approach to the detection of harmonic and fundamental currents. There is no need to adopt the fixed frequency filters and Phase Lock Loop（PLL） in it , and its circuit configuration is simple.
出处
《电测与仪表》
北大核心
2005年第8期18-20,共3页
Electrical Measurement & Instrumentation
关键词
单相电路
谐波
基波电流
检测
single-phase circuit
harmonics
fundamental current
detection
