A Simple On-line SHE PWM With Extension to Six Step Mode in Two-Level Inverters

Author

Van Nho, Nguyen ; Youn, Myung Joong

Author_Institution

Dept. of Electrical Engineering, Hochiminh City University of Technology, HCMUT, Vietnam, e-mail: nvnho@hcmut.edu.vn

Volume

2

fYear

2005

Firstpage

1419

Lastpage

1424

Abstract

The Selective Harmonic Elimination (SHE) PWM technique has become a significant PWM method for less switching loss for voltage source inverter. For off-line approach, the various sets of commutation angles in relation to modulation index are commonly determined in advance and look-up tables are required. This trouble can be avoided in on-line approach. The paper presents a simple on-line SHE PWM method with linear control of the fundamental voltage, including SHE-overmodulation range using the Principle Control between limit angular trajectories. The method has been mathematical described. The simulation and experimental results have been implemented to confirm the validity of the proposed method.

Keywords

Overmodulation; Selective Harmonics Elimination; Voltage source Inverters; Equations; Polynomials; Power system harmonics; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Switching loss; Voltage control; Overmodulation; Selective Harmonics Elimination; Voltage source Inverters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on

Print_ISBN

0-7803-9296-5

Type

conf

DOI

10.1109/PEDS.2005.1619911

Filename

1619911