Title :
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
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;
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
DOI :
10.1109/ICIEA.2007.4318847
