A feed-forward compensation strategy of SPWM Matrix Converter under abnormal input voltage conditions

Author

Lai Xiang-dong ; Qu Yan-gang ; Zhong Yan-ping ; Zou Yun-ping ; Chen Yao-jun

Author_Institution

Huazhong Univ. of Sci. & Technoly, Wuhan

fYear

2008

fDate

6-9 April 2008

Firstpage

1775

Lastpage

1780

Abstract

The feed-forward control scheme based on SPWM matrix converter is proposed. As a device without DC line, the AC line side abnormal inputs can deteriorate its output characteristics. Tri-carrier is prior modulated by measured envelop of line voltages, to let the pulse width of SPWM get different compensation in each pulse. This paper analyzes compensation principle, introduces realization method, and compares output behaviors of without compensation with compensation by Matlab/Simulink. Analyses and simulations show that the scheme modifies effectively output characteristics of MC (Matrix Converter) under abnormal input conditions. It is simple not only easy to realize through hardware but also to digital, and simple algorithm.

Keywords

PWM power convertors; compensation; feedforward; mathematics computing; matrix convertors; SPWM matrix converter; abnormal input voltage condition; compensation strategy; feed-forward control; matlab-simulink; Arithmetic; Feedforward systems; Matrix converters; Pulse measurements; Pulse modulation; Pulse width modulation; Radar; Space vector pulse width modulation; Switches; Voltage; Matrix Converter; SPWM; abnormal input; feed-forward; prior modulating;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Utility Deregulation and Restructuring and Power Technologies, 2008. DRPT 2008. Third International Conference on

Conference_Location

Nanjuing

Print_ISBN

978-7-900714-13-8

Electronic_ISBN

978-7-900714-13-8

Type

conf

DOI

10.1109/DRPT.2008.4523694

Filename

4523694