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非接触移动供电系统不同补偿拓扑下的鲁棒性分析

发布时间:2019-01-21 17:04
【摘要】:为揭示非接触移动供电系统参数扰动的产生、传播及影响机理,首先采用广义状态空间平均建模方法,建立了4种基本双边谐振补偿拓扑的系统不确定模型;其次,研究了电磁耦合机构相对距离和工况变化导致的互感及负载扰动特性,并依此推导出软开关调制模式下的系统频率扰动规律;第三,基于参数扰动模型分析了互感、负载及频率变化对系统输出的影响,并通过计算系统结构奇异值分析了不同补偿拓扑系统的鲁棒稳定性;最后,针对一套双边串联谐振补偿系统,对互感及负载偏离标称值条件下的系统鲁棒性进行了验证实验.实验波形表明:当互感和负载分别在标称值(12.15μH、5.00Ω)与摄动值(9.51μH、12.55Ω)之间变化时,系统仍然是鲁棒稳定的,采用PI控制能较好地抑制其对负载输出电压的影响.
[Abstract]:In order to reveal the generation, propagation and influence mechanism of parameter disturbance in contactless mobile power supply system, four kinds of system uncertainty models of basic two-sided resonant compensation topology are established by using generalized state space average modeling method. Secondly, the characteristics of mutual inductance and load disturbance caused by the relative distance and operating condition of electromagnetic coupling mechanism are studied, and the frequency disturbance law of the system under soft-switching modulation mode is deduced. Thirdly, based on the parameter perturbation model, the effects of mutual inductance, load and frequency change on the output of the system are analyzed, and the robust stability of different compensated topological systems is analyzed by calculating the singular values of the system structure. Finally, for a two-sided series resonant compensation system, the robustness of the system under the condition of mutual inductance and load deviation from the nominal value is verified. The experimental waveforms show that the system is robust and stable when the mutual inductance and load vary between the nominal value (12.15 渭 H) 5.00 惟 and the perturbation value (9.51 渭 H ~ (-1) 12.55 惟), respectively. The effect of PI control on the load output voltage can be well restrained.
【作者单位】: 西南交通大学电气工程学院;
【基金】:国家自然科学基金资助项目(51507147) 铁路总公司科技研究开发计划课题(2014J013-B) 中央高校基本科研业务费专项资金资助项目(2682014CX023)
【分类号】:TM724


本文编号:2412844

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