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http://dx.doi.org/10.5370/KIEE.2012.61.11.1606

Improved Hysteresis Current Control Regulator for High-efficiency Switching  

Hong, Sun-Ki (호서대학교 시스템제어공학과)
Park, Jin-Ho (호서대학교 시스템제어공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.11, 2012 , pp. 1606-1610 More about this Journal
Abstract
Hysteresis current regulator has been used widely because of its simple principle and structure. However, when the current band width is too narrow or the applied voltage is relatively too high, the switching frequency may increase abruptly and it generates a large amount of heat. Thus, this study will suggest a better and simple method to reduce the switching frequency. For single phase current control, the proposed hysteresis current control is executed by adding 0 mode state and comparing the slope of the current reference. This simple method decreases the generated switching frequency and significantly reduces the generated heat. This proposed method was proved with simulations and experiments comparing with the classical hysteresis current control method.
Keywords
Hysteresis current control; 0 mode; Slope of reference; Switching frequency;
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  • Reference
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