The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 42-573
Full Name: Jin Nan
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: Class No. A0703191, DongChuan Road NO.800,Minhang District,Shanghai,China
Country: CHINA
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E-mail address: jinnan@sjtu.edu.cn
Other E-mails: jinnanmail@gmail.com
Title of the Paper: Dynamic Voltage Regulator based on PWM AC Chopper Converter:Topology and Control
Authors as they appear in the Paper: Jin Nan, Tang Houjun, Lan Jianyu, Yao Chen,Chen Weiwei,An Xiaoyu
Email addresses of all the authors: jinnan@sjtu.edu.cn,hjtang@sjtu.edu.cn,lanjianyu@sjtu.edu.cn,yaochen@sjtu.edu.cn,chenweiwei@sjtu.edu.cn,anxiaoyu@zzuli.edu.cn
Number of paper pages: 10
Abstract: This article presents a novel topology of dynamic voltage regulator using transformer and PWM AC chopper. The proposed voltage regulator employs an ac chopper converter to generate compensation voltage and uses the transformer to isolate the power converter from the load. When input voltage sags and swells occur, the output voltage can be regulated by changing the duty ratio of the PWM control signals. The transformer is connected in series with the load. Thus, the load voltage can be kept stable when input voltage fluctuations occur. For this purpose, a feedforward feedback digital controller has been designed to perform the close-loop control. The proposed converter and control strategy present the advantages of fast dynamic response and effective compensation to the voltage fluctuations. Simulations are made to investigate the performances of the proposed converter. The simulation results show that the designed voltage regulator has fast transient response, and !
can suppress the load voltage fluctuations effectively. The prototype is also setup. The simulation results have been validated by the experiment.
Keywords: AC chopper, Voltage Regulator, Pulse Width Modulation, Feedforward and Feedback Control, Voltage Sags, Voltage Swells
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