A Detection Approach for Random Harmonic current in Single-Phase Circuit
Based on the transform relation between stationary coordinate and rotational coordinate, a real-time detection approach for random harmonic current in single-phase circuit is presented. This paper proposes digital Hilbert phase-shifting filter to construct two orthogonal current vectors with same amplitudes in stationary coordinate from single-phase harmonic current, and deduces the characteristics that random selective harmonic current component in rotational coordinate rotating at selective angular frequency is direct current to realize the detection of random single-phase harmonic current. The analyses and simulation prove the correctness of this method.
random harmonic current single-phase circuit stationary coordinate rotational coordinate digital Hilbert phaseshifting filter
XU Jin HU Min CHEN Haiyun FANG Wei
School of Electrical Engineering and Information, Southwest Petroleum University, Chengdu, 610500, China
国际会议
三亚
英文
1346-1350
2012-01-06（万方平台首次上网日期，不代表论文的发表时间）