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The Improved Design of the Sliding-mode Variable Structure Controller for the Multi-phase Staggered Interleaved Buck Converter |
Xia Jiansheng, Zhao Jinquan, Xing Ling |
School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049 |
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Abstract Sliding mode control is mainly used in linear or nonliner, certain or uncertain, lumped parameters or nonlumped parameter. It has some advantage such as its good robustness, widely steady-state range, and fast dynamic response. SMC had began to apply in switching mode power supply.In this paper the sliding mode controlled VRM is researched and analyzed about SMC of the VRM topology multi-phase buck converter. According to its own character, a proper sliding mode face is selected, and it current sharing and dynamic response is researched. When the DCRs of each phase is not equal, a new control method based on duty cycle compensation is discussed, and its current sharing is available. At last, Simulation and experiment is also done to verify the algorithm.
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Published: 20 April 2016
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Cite this article: |
Xia Jiansheng,Zhao Jinquan,Xing Ling. The Improved Design of the Sliding-mode Variable Structure Controller for the Multi-phase Staggered Interleaved Buck Converter[J]. Electrical Engineering, 2016, 17(4): 1-5.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2016/V17/I4/1
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