Dynamic Control of Three-Phase Dual-Active-Bridge DC-DC Converters Based on Sliding-Mode-Learning Adaline

Sun, Jiahao, Lin, Qiu, Liu, Xing, Ma, Jien, Fang, Youtong and Wu, Haimeng (2021) Dynamic Control of Three-Phase Dual-Active-Bridge DC-DC Converters Based on Sliding-Mode-Learning Adaline. In: 2021 IEEE 1st International Power Electronics and Application Symposium (PEAS). IEEE, Piscataway, US, p. 9628778. ISBN 9781665413619, 9781665413596, 9781665413602

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Abstract

Fast dynamic response is an important requirement for three-phase dual active bridge (3p-DAB) DC-DC converters under the varied source voltage and load resistance conditions. In order to enhance the dynamic performance of output voltage of 3p-DAB, a novel nonlinear controller, which is combined with the proportional plus derivative (PD) controller and the adaptive linear element (Adaline), is proposed in this paper. Firstly, a sliding-mode-learning strategy is presented for the Adaline to improve the robustness of adaptive learning. Meanwhile, the output of the Adaline is added to the output of PD controller for ensuring an outstanding dynamic response of output voltage with less overshoot. Furthermore, a comparison with the PI controller based on phase shift modulation is implemented by simulation tool to validate the utility and effectiveness of the proposed control scheme. Finally, experimental comparison results on a laboratory prototype are presented to further verify the theoretic analysis and the effectiveness of the proposed control method.

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