1) fundamental positive sequence voltage selected unit
A相正序基波单元
1.
One is to add a PI regulator after LPF, the other is to replace the traditional PLL by a fundamental positive sequence voltage selected unit.
在此基础上,提出了一种改进的实时检测谐波电流方法:即在低通滤波器之后加入PI调节器,同时用A相正序基波单元代替传统的锁相环获取A相正序电压。
2) fundamental positive-sequence
基波正序
1.
Based on mathematical deduction and analysis, the problems are pointed out that concern the detection of harmonics and fundamental positive-sequence active & reactive current components with instantaneous reactive power theory under asymmetrical three-phase voltages.
基于理论推导和分析,指出了在三相电压不对称时,应用瞬时无功功率理论检测谐波和基波正序有功及无功电流分量存在的问题。
3) poly-phase orthogonal sequences wave
多相正交序列波
4) fundamental positive sequence voltage
基波正序电压
5) positive sequence of fundamental frequency
基波正序信号
6) positive sequence extractor of fundamental wave
正序基波提取器
1.
After analyzing the selective frequency characteristic of amplitude integration signal, this paper addresses a positive sequence extractor of fundamental wave, and presents a novel current detecting method for reactive power, harmonic and negative sequence.
通过对幅值积分信号所具有的选频特性进行分析,研究了一种正序基波提取器,在此基础上提出了一种新型的无功、谐波和负序电流检测方法。
补充资料：正序
1.谓五行相生的顺序。
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