An optimization method for three-level selective harmonic eliminated pulse width modulation (SHEPWM)

Author

Wu, Chunhui ; Jiang, Qirong ; Zhang, Chunpeng

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

Volume

2

fYear

2005

fDate

29-29 Sept. 2005

Firstpage

1346

Abstract

This paper presents an optimization method and corresponding algorithm for three-level selective harmonic eliminated pulse width modulation (SHEPWM) strategy to improve harmonic performance of inverter´s output voltage. Based on a three-level three-single-phase distribution static synchronous compensator (D-STATCOM), the principle of SHEPWM is introduced in the paper. Then, the conventional SHEPWM is divided into two different strategies, and two different sets of initial values are adopted for calculating switching angles. Furthermore, an optimization method is proposed, which brings better harmonic performance of inverter´s output voltage with low switching frequency. Computational examples and experimental results both show that this optimization method has well convergence and good effect

Keywords

PWM invertors; harmonics suppression; optimisation; power conversion harmonics; static VAr compensators; switching convertors; harmonic performance; inverter; optimization method; selective harmonic eliminated pulse width modulation; single-phase distribution static synchronous compensator; switching angles; switching frequency; Automatic voltage control; Convergence; Low voltage; Optimization methods; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Space technology; Space vector pulse width modulation; Switching frequency; Selective harmonic eliminated pulse width modulation (SHEPWM); optimization; three-level inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Conference_Location

Nanjing

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202767

Filename

1575000