Sequential homotopy-based computation of multiple solutions for selected harmonic elimination in PWM inverters

被引：111
|
作者：
Kato, T [1 ]
机构：
[1] Doshisha Univ, Dept Elect Engn, Kyoto 6100321, Japan
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS | 1999年 / 46卷 / 05期
关键词：
harmonic elimination; homotopy method; multiple solutions; nonlinear equations; PWM inverter;
D O I：
10.1109/81.762924
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The selected harmonic-elimination (HE) method, which is widely used for efficient inverter control, forms a basis of off-line digital PWM modulation techniques in the power electronics field. The method is based on numerical solutions of a set of selected HE equations which are often considered to be impractical to solve. Up to now, any effective method for this subject has never been reported. This paper proposes a systematic method which makes it possible to solve and analyze the equations sequentially by applying a homotopy method and a mathematical induction algorithm even if there are multiple solutions. According to the proposed method, unique HE solutions for single-phase cases and multiple solutions for three phase cases are computed and reported.
引用
收藏
页码：586 / 593
页数：8
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