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Auto-disturbance-rejection control for phase-shifted resonant converter

2006; Institution of Engineering and Technology; Volume: 153; Issue: 5 Linguagem: Inglês

10.1049/ip-epa

1359-7043

Yan Lü, K.W.E. Cheng, S. L. Ho,

Wireless Power Transfer Systems

A robust auto-disturbance-rejection controller (ADRC) for phase-shifted resonant converters is proposed. The variation of load resistance is observed and estimated by an extended state observer, which is the core of the ADRC. A dedicated nonlinear state error feedback is proposed to synthesise the control actions to obtain superior dynamic performance. Laboratory experiments based on a Matlab/DSP system have been carried out and the results confirm the robustness of the controller.