Title :
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
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;
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
DOI :
10.1109/DRPT.2008.4523694
