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ZERO-CROSS INSTANTANEOUS STATE SETTING FOR CONTROL OF A BIFURCATING H-BRIDGE INVERTER

SATOSHI AKATSU

EECE Department, Hosei University, Koganei, Tokyo 184-8584, Japan

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HIROYUKI TORIKAI

EECE Department, Hosei University, Koganei, Tokyo 184-8584, Japan

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TOSHIMICHI SAITO

EECE Department, Hosei University, Koganei, Tokyo 184-8584, Japan

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https://doi.org/10.1142/S021812740701938XCited by:10 (Source: Crossref)

Abstract

This paper studies stabilization of low-period unstable periodic orbits (UPOs) in a simplified model of a current mode H-bridge inverter. The switching of the inverter is controlled by pulse-width modulation signal depending on the sampled inductor current. The inverter can exhibit rich nonlinear phenomena including period doubling bifurcation and chaos. Our control method is realized by instantaneous opening of inductor at a zero-crossing moment of an objective UPO and can stabilize the UPO instantaneously as far as the UPO crosses zero in principle. Typical system operations can be confirmed by numerical experiments.

Keywords:

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