An Overmodulation Method for Space Vector PWM Current Source Inverters

Author

Tan, Longcheng ; Li, Yaohua ; Wang, Ping

Author_Institution

Graduate Univ. Chinese Acad. of Sci., Beijing

fYear

2007

fDate

23-25 May 2007

Firstpage

2431

Lastpage

2434

Abstract

Operating current source inverters (CSI) in the overmodulation range extends their current and power ranges as the voltage source inverters do. This paper presents a simple overmodulation algorithm for space vector pulse width modulation (PWM) suitable for CSI. The proposed algorithm views the operation area as a whole, and allows smooth transitions through the entire operating range up to six-step operation. In addition, harmonic components of the output current is analyzed. When the technique is applied to the CSI-based uninterruptible power supplies (UPS), quicker dynamic response and higher output power are obtained, and a smooth operation during transition between the linear control range and the six-step mode is also demonstrated through simulation results.

Keywords

PWM invertors; dynamic response; harmonic analysis; uninterruptible power supplies; CSI-based uninterruptible power supplies; UPS; dynamic response; harmonic components; linear control range; overmodulation method; space vector current source inverters; space vector pulse width modulation; voltage source inverters; Converters; Harmonic analysis; Power conversion; Power generation; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Topology; Uninterruptible power systems; Voltage; Overmodulation; current source inverter; space vector modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-0737-8

Electronic_ISBN

978-1-4244-0737-8

Type

conf

DOI

10.1109/ICIEA.2007.4318847

Filename

4318847