NDLI: A phase-disposition PWM method for DC voltage balance in cascaded H-Bridge rectifier

Content Provider	IEEE Xplore Digital Library
Author	Tao Xinghua Li Yongdong Sun Min
Copyright Year	2010
Description	Author affiliation: State Key Lab of Control and Simulation of Power System and Generation Equipments, Dept. of Electrical Engineering, Tsinghua University, China (Tao Xinghua; Li Yongdong; Sun Min)
Abstract	In this paper, a novel control scheme for cascaded H-Bridge rectifier (CHBR), which can be used as the primary end of high voltage high power multilevel converters, is presented. The controller is similar with the one for single phase rectifier. To improve the performance of the controller, notch filter and proportion resonance (PR) controller are employed and the discrete methods for them are discussed in detail. The different function of CHBR controller from the single rectifier is for voltage balancing. Therefore, the phase-disposition technology, which is used in the multilevel converter, is introduced to eliminate the voltage error from the expected value. With this approach, the states of the switches of the CHBR are decided correctly by the practical condition and then the DC-link capacitors of the cells are controlled to charge or discharge in the way which results to voltage balancing. The effectiveness of the proposed approach is verified by experimental results.
Starting Page	243
Ending Page	248
File Size	437399
Page Count	6
File Format	PDF
ISBN	9781424477203
e-ISBN	9788986510119
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-10
Publisher Place	Korea (South)
Access Restriction	Subscribed
Rights Holder	KIEE
Subject Keyword	Rectifiers Pulse width modulation Voltage control Voltage measurement Resonant frequency Topology Power harmonic filters PR controller Phase-disposition PWM cascaded H-bridge rectifier voltage balance
Content Type	Text
Resource Type	Article

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