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《Electric Engineering》 2018-15
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Constant Current Power Source Control of WPT System Based on Switching System

HE Tianwei;Zunyi Aluminum Co.,Ltd.;  
A fast and robust control strategy of primary side for wireless power transfer system was introduced.A sinusoidal reference trajectory signal was generated by analyzing the properties of the vector fields associated with all possible configurations of the converter.A switching controller was designed based on the switching behavior of the converter and the trajectory reference signal of the switched differential equations.A set of points around the reference trajectory was defined to guarantee the global asymptotic stability.The proposed control strategy had less complexity in comparison to other suggested controllers and higher dynamic responding speed to large variation and perturbations of the load.The simulation and experimental results showed that the primary current overshoot was efficiently suppressed and the system response performance was improved.
【CateGory Index】: TM724
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