NDLI: Research of Direct Power Control of PWM rectifier based on virtual flux

Content Provider	IEEE Xplore Digital Library
Author	Yu, Guolong Wang, Yi Ma, Shang Zhang, Lirong
Copyright Year	2014
Description	Author affiliation: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, China (Yu, Guolong; Wang, Yi; Ma, Shang; Zhang, Lirong)
Abstract	In PWM rectifier control strategy, Direct Power Control (DPC) has been used more and more widely in order to solve the problem of complex rotating coordinate transformation of Vector Control. Traditional DPC method with variable switching frequency is applied based on instantaneous power theory and switching table. This approach requires more voltage and current sensors to calculate active and reactive power, leading to low anti-jamming capability. And the use of bang-bang control results in large power fluctuation. For these problems, an improved DPC strategy with fixed switching frequency is proposed based on virtual flux and Space Voltage Modulation (SVM). This method simplifies the circuit structure by omitting the voltage sensors and obtains continuous control by SVM instead of switching table. A comprehensive theoretical analysis of two DPC methods above is given and the comparison of simulation results is presented in Matlab/simulink. The simulation results show that DPC based on virtual flux and SVM has better dynamic and static control performance.
Starting Page	775
Ending Page	779
File Size	387539
Page Count	5
File Format	PDF
ISBN	9781479951628
DOI	10.1109/ICEMS.2014.7013573
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rectifiers Switches Pulse width modulation Support vector machines Reactive power Voltage control Vectors Low pass filter Virtual Flux SVM DPC
Content Type	Text
Resource Type	Article

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