Deduction of Coordinate Transform for Instantaneous Reactive Power Theory and Analysis on Relationship between α -β and dq0 Transformation
Instantaneous reactive power theory (IRPT) proposed by H. Akagi is shortage of detail explanation on the matrix coefficient of α -β transformation. Based on power conservation, the matrix coefficient is deduced in-plane. As the transformation was given out in plane domain, the matrix coefficient is deduced in-plane by rigorous mathematical deduction based on power conservation. Consequently, the coefficient deduction for IRPT is solved. In the view of there being two kinds of instantaneous reactive theories widely used in harmonic current detection, the α -β transformation and dp0 transformation, which one is better or is same is a problem. In order to find this, the relationship between the α -β transformation and dp0 transformation is discovered through theoretical deduction, pointing out that the currents containing harmonic and fundamental got through the two methods are of the relationship of a proportion difference in size, and ones phase lagging behind the others. The analysis in this paper is available for understanding and application of this harmonic current detection method.
instantaneous reactive power theory(IRPT) α -βtransformation dq0 transformation transformation matriz coefficient
Yanwei Zhu Xinchun Shi Yangqing Dan
Dept.of Electrical and Electronic Engineering,North China Electric Power University,Dao ding 071003, Dept.of Electrical and Electronic Engineering,North China lectric Power University,Dao ding 071003,C
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
4150-4153
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）