关键词: 选择性谐波消除法, 逆变器, 矩阵求逆

Abstract: Various matrix inversing methods and their algorithm stability are analysed．It is found that the convergence of mathematic solution of selective harmonic elimination equation results from morbid-condition of the selective harmonic elimination matrix．The inversing method with Gauss-Jordan elementary transformation based on the compact memory is presented and calculation steps are described in detail． The results show that the algorithm has many merits‚such as little memory occupying‚little calculation‚ easy suited to parallel calculation and so on．Therefore‚it is an effective method to get inverse matrix．

Key words: selective harmonic elimination, inverter, solution of inverse matrix