电工技术学报2017，Vol.32Issue(18)：62-72,11.DOI:10.19595/j.cnki.1000-6753.tces.170306
感应电能传输系统分段供电的 双自由度鲁棒控制
Double-Degree of Freedom Robust Control for Segmented Inductive Power Transfer System
摘要
Abstract
The load-side pickup power of inductive power transfer (IPT) system is often influenced by the uneven distribution of magnetic field intensity between the segmented primary coils, particularly in the setting of segmented IPT systems, which will affect system stability and performance. This paper focuses on the output stabilization problem of a simplified two-coil segmented IPT system which is powered by parallel-connected LCL resonant circuits. A double-degree of freedom (DOF) robust control technique is therefore introduced for constant voltage output. Firstly, according to the perturbation law of mutual inductance around segmentation transitions, the parameter uncertainty model is established via the generalized state-space averaging (GSSA) method. After that, an H∞controller is obtained by adjusting the gain of output weighting function based on the generalized mixed sensitivity, thus the fast performance to restrain the effect of mutual inductance perturbation is achieved. For further correction of the reference input, the derivation and design of a pre-filter is introduced afterwards. The experimental result shows double-DOF control can attenuate the effect of mutual inductance perturbation during segmentation transition and improve the tracking response performance of reference input significantly.关键词
感应电能传输/互感不确定性/广义状态空间平均/鲁棒控制/双自由度Key words
Inductive power transfer/mutual inductance uncertainty/generalized state-space averaging/robust control/double-degree of freedom分类
信息技术与安全科学引用本文复制引用
李砚玲,杨鸣凯,杜浩..感应电能传输系统分段供电的 双自由度鲁棒控制[J].电工技术学报,2017,32(18):62-72,11.基金项目
国家重点研发计划轨道交通专项课题(2017YFB1201002),国家自然科学基金(51507147)和国家杰出青年科学基金(51525702)资助项目. （2017YFB1201002）
