Analysis of Single Phase PWM Rectifier for Different Applications
Arkendu Mitra2016, Journal of The Institution of Engineers (India): Series B
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Abstract
This research work investigates the various applications of a PWM rectifier based on its input power factor. Most of the cases, the papers describe the operation of the rectifier used for unity power factor (UPF) operation. Beside this mode of operation, this paper compiles the application of the rectifier as STATCOM also, where the rectifier deals only with reactive power exchange. In this work, the controller is implemented by inserting a loop for reference input of phase angle which will be compared with the actual one, so that user can operate the rectifier at any power factor. Some basic formulae are derived for the input current, active power and reactive power based on which the control circuit is to be designed. Here two Proportional-Integral (PI) controllers are used. A brief description of tuning these two PI controllers is incorporated in this paper. Also some calculations are given to determine the harmonic factors of the input line current from which it is found that the rectifier when operated in each mode operation, the order of the harmonics are very low.
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I would like to thanks and praise the Almighty Allah, the most beneficent, the most merciful, for helping me to complete the work successfully. I express my gratitude and deep appreciation to my supervisor, Dr. Mohammad Ali Choudhury, Professor, Department of Electrical and Electronic Engineering, BUET, for his helpful suggestions, encouragement, guidance and individual assistance in the process of completing the research work. I would also like to thank all respectable members of the Department of Electrical and Electronic Engineering (EEE), BUET for various assistances they have provided. Thanks to all my well wishers and friends who helped in various manner to complete the research work. Most of all, I am grateful to my family members and relatives for their cooperation, support and encouragement in completing the work.
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