NDLI: A current controller for 1-phase pwm rectifiers using real-time internal feedback of the pwm controller signals

Content Provider	IEEE Xplore Digital Library
Author	Salmon, J. Liping Wang Langdon Guay
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta. (Salmon, J.; Liping Wang; Langdon Guay)
Abstract	A carrier-based unipolar PWM current controller for 1-phase PWM rectifiers is described that uses a PWM signal feedback loop with a low pass filter to force the current-error to be centred on zero. The proposed controller is intended for low cost discrete electronics and replaces the PI controller traditionally used to lower the current-error signal. A sawtooth carrier signal is used to synchronize the PWM waveforms and to obtain a constant switching frequency. A current-error signal and an amplitude modulation depth signal is obtained from the filtered PWM signal feedback and can be designed to take into account switch overlap and signal transmission delays. The filtered PWM signal more accurately represents the converter PWM output voltage waveform and, with an appropriately designed low pass filter, forces the current-error signal to be centred on zero over a PWM cycle. This signal feedback is internal to the controller and is illustrated using a second-order Butterworth filter. The maximum peak-peak ripple of the current-error signal is used as a design guideline for deciding the appropriate gain constant in the controller current feedback loop. The proposed controller has a performance comparable to PI and adaptive hysteresis current controllers that are more complex in structure to obtain the same performance. SPICE simulations and experimental results are used to demonstrate the controller operation
Starting Page	1448
Ending Page	1453
File Size	5954570
Page Count	6
File Format	PDF
ISBN	1424404967
DOI	10.1109/ISIE.2006.295685
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-09
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation Rectifiers Low pass filters Signal design Pulse width modulation converters Feedback loop Switches Force control Force feedback Costs
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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