Phase Measurement of Three-phase Power Based on All-phase FFT1

摘要：

When the Three-phase power signal containing multiple harmonics signal, there is a clear error that FFT algorithm is used directly to measure the phase, even with the various correction methods such as ratio method, center of energy gravity method etc. precision is severely constrained by harmonic signal. To solve these problems, a modified FFT algorithm, which is all-phase FFT, is used to measure the phase difference of three-phase power. The algorithm makes phase measurement accuracy significantly improve. More importantly, the way is almost free from harmonic noise, and easily implements in hardware to meet real-time measurement of power system requirements.

关键词： phase measurement: Three-phase power all-phase FFT single frequency complex exponential signal

作者: Zhang Yonghui Zhang Xiyuan Chen Xi

作者单位: College of Information Science &Technology, Hainan University, Haikou, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 2261-2264

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）