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Modeling and Improved Predictive Current Control for Buck-Boost Series Resonant Inverter

Gun‐Woo Moon, Jung-Hoon Lee, In-Cheol Baik, Kyeong-Hwa Kim, Myung-Joong Youn

Abstract

An improved predictive current control technique for a zero current switched(ZCS) buck-boost series resonant inverter(SRI) is proposed to overcome the inherent disadvantages such as the uncontrollable large overshoot and the large current ripple. Using the proposed technique, four quadrant operations of the output voltage and current for an uninterruptible power supply(UPS) application are guaranteed and the buck-boost operation can also be obtained without an additional bidirectional switch.

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Key concepts: Uninterruptible power supply, Ripple, Inverter, Current (fluid), Overshoot (microwave communication), Computer science, Control theory (sociology), Voltage