NDLI: Constant-Frequency Hysteresis Current Control of Grid-Connected VSI Without Bandwidth Control

Content Provider	IEEE Xplore Digital Library
Author	Ho, C.N.-M. Cheung, V.S.P. Chung, H.S.-H.
Copyright Year	1986
Abstract	The theory, design, and implementation of a constant-frequency hysteresis current control for grid-connected voltage source inverter (VSI) is presented. The proposed control technique retains the benefit of the hysteresis control having fast dynamic response and tackles the drawback of the standard hysteresis control having variable switching frequency. The concept is based on predicting the current reference, system dynamic behavior, and past time to formulate the switching function for dictating the switching times of the switches in the inverter within a predefined switching period. Of particular importance, no hysteresis bandwidth (a challenge in the practical implementation) is needed in the entire control method. The operating principles of the proposed technique and mathematical derivation of the switching functions will be given. The proposed method is successfully applied to a 300 W, 110 V, 60 Hz grid-connected VSI prototype with the controller implemented by a simple analog circuit. The steady-state and large-signal dynamic response of the VSI are studied. Experimental results show that the inverter can reach the steady state in two switching actions after the inverter is subject to large-signal input and output disturbances.
Sponsorship	IEEE Power Electronics Society
Starting Page	2484
Ending Page	2495
Page Count	12
File Size	1620080
File Format	PDF
ISSN	08858993
Volume Number	24
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hysteresis Current control Bandwidth Inverters Voltage control Steady-state Density estimation robust algorithm Distributed power generation Stability Load flow hysteresis control Constant-frequency control current-ripple-based control grid-connected voltage source inverter (VSI)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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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