Application of Fuzzy Integral Control for Output Regulation of Asymmetric Half-Bridge DC/DC Converter with Current Doubler Rectifier

Gyo-Bum Chung; Sun-Geun Kwack

Application of Fuzzy Integral Control for Output Regulation of Asymmetric Half-Bridge DC/DC Converter with Current Doubler Rectifier

Gyo-Bum Chung

Sun-Geun Kwack

Vol. 7, No. 3, pp. 238-245, Jul. 2007

10.6113/JPE.2007.7.3.238

Asymmetric Half Bridge DC/DC converter

Current Doubler Rectification

Takagi-Sugeno Fuzzy Model

Integral Control

Regulation

Linear Matrix Inequality

Compensated Error-Amplifier

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Abstract

This paper considers the problem of regulating the output voltage of a current doubler rectified asymmetric half-bridge (CDRAHB) DC/DC converter via fuzzy integral control. First, we model the dynamic characteristics of the CDRAHB converter with the state-space averaging method, and after introducing an additional integral state of the output regulation error, we obtain the Takagi-Sugeno (TS) fuzzy model for the augmented system. Second, the concept of parallel distributed compensation is applied to the design of the TS fuzzy integral controller, in which the state feedback gains are obtained by solving the linear matrix inequalities (LMIs). Finally, numerical simulations of the considered design method are compared to those of the conventional method, in which a compensated error amplifier is designed for the stability of the feedback control loop.

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Cite this article

[IEEE Style]

G. Chung and S. Kwack, "Application of Fuzzy Integral Control for Output Regulation of Asymmetric Half-Bridge DC/DC Converter with Current Doubler Rectifier," Journal of Power Electronics, vol. 7, no. 3, pp. 238-245, 2007. DOI: 10.6113/JPE.2007.7.3.238.

[ACM Style]

Gyo-Bum Chung and Sun-Geun Kwack. 2007. Application of Fuzzy Integral Control for Output Regulation of Asymmetric Half-Bridge DC/DC Converter with Current Doubler Rectifier. Journal of Power Electronics, 7, 3, (2007), 238-245. DOI: 10.6113/JPE.2007.7.3.238.