摘要
提出一种基于二维扇合矢量变换的检测基波正序、负序及谐波分量的新方法.该方法首先将三相瞬时值作α-β变换,再用二维扇合变换矢量将α,β二相瞬时值扇合成一维扇合矢量,从而简化了畸变不对称三相系统的基波正序分量(负序分量)的提取.基波正序(负序)扇合矢量经三相扇开后就分别得到了三相正序各分量(三相负序各分量).仿真结果证明了所提方法的正确性和有效性.
A new method for detecting fundamental positive and negative sequence components based on two-dimension fan-in transfer vector is developed in this paper. In the method, the three-phase un- symmetrical quantities is firstly converted into α -β two-phase quantities, then converted into a singlephase quantity using two-dimension fan-in transfer vector. So it simplifies the method of getting the fundamental positive （negative） sequence components. The three-phase fundamental positive （negative） sequence components can be obtained by fan-open the fan-in vector. The theoretical analysis and simulation verify the feasibility and correctness.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第3期418-422,共5页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省自然科学基金资助项目(E0510009)
关键词
扇合矢量
正序分量
负序分量
谐波分量
fan-in vector
positive components
negative components
harmonic component
