Analytical technique for calculating the output harmonics of an H-bridge inverter with dead time

被引：72

作者：

Wu, CM ^{[1
]}

Lau, WH

Chung, HSH

机构：

[1] S China Univ Technol, Dept Elect Power Engn, Guangzhou, Peoples R China

[2] City Univ Hong Kong, Dept Elect Engn, Kowloon, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 1999年 / 46卷 / 05期

关键词：

dead time; harmonic analysis; pulse width modulated inverters;

D O I：

10.1109/81.762927

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：

An analytical technique for calculating the harmonic characteristics of the output voltage of an H-bridge inverter with dead time is presented. The analysis is based on a three-dimensional (3-D) model derived for generating the pulsewidth-modulated (PWM) pulse train. By applying double Fourier analysis, a generalized and elegant mathematical function for describing the harmonic components of the output voltage is formulated. The function can be divided into two parts: an ideal part representing the PWM signal without dead time and a correction part representing the dead-time effect. The function provides detailed composition of the fundamental component, signal harmonics, carrier harmonics, and cross-modulated harmonics. The proposed technique has been verified using examples and the theoretical predictions are confirmed with the results obtained from simulations using PSpice.

引用

页码：617 / 627

页数：11

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