电流型IPT系统新型输出恒压控制方法研究 |
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引用本文: | 阚超豪,朱晓威,程源.电流型IPT系统新型输出恒压控制方法研究[J].电气技术,2016(11). |
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作者姓名: | 阚超豪 朱晓威 程源 |
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作者单位: | 合肥工业大学电气与自动化工程学院,合肥,230009 |
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基金项目: | 国家自然科学基金资助项目(51377040) |
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摘 要: | 针对电流型感应电能传输(IPT)系统负载变化时输出电压的稳定性问题,提出一种基于恒定跨阻增益特性的原边控制方法。以电流型IPT系统采用初次级并联(PP)补偿为研究对象,建立其互感等效电路并进行分析,推导出在特定工作条件下该拓扑具有恒定跨阻增益特性。并进一步分析了PP补偿谐振网络的效率特性,优化谐振网络参数使系统恒定跨阻增益频率为效率最优频率。为保持原边输入直流母线电流恒定,在传统电流型感应电能传输拓扑中加入恒流控制系统,并阐述了恒流控制原理。本文还提出了基于新型控制方法在给定条件下的IPT系统综合设计方法。最后,设计一台80W样机,实验结果与理论分析良好吻合,验证了论文所提控制方法的正确性。
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关 键 词: | 电流型感应电能传输 恒定跨阻增益 效率优化 恒流 非接触变压器 |
Research on Novel Constant-voltage Output Control Method for Current-fed IPT System |
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Abstract: | The current-fed inductively power transfer (IPT) system, aiming at the Output- Voltage-instability problem on a dynamic load, based on the constant transimpedance gain characteristics of the primary side control method is proposed. Taking current-fed IPT system with parallel-primary and parallel-secondary (PP) compensate as an object, by building and analyzing the mutual inductance equivalent circuit, had the characteristics of constant-transimpedance-gain under certain working conditions are derivated. And the efficiency characteristics of PP compensated resonant network are analyzed, optimization of resonant network parameters make the system constant- transimpedance-gain frequency for the efficiency of the optimal frequency. In order to maintain the constant input bus current, the constant-current control system is added in the traditional current-fed IPT topology, and the principle of constant-current control is described. This paper gave design steps based on the novel control method under given conditions. Finally, designed a 80W prototype, the experimental results are in good agreement with the theoretical analysis and the correctness of the circuit topology and control strategy is verified. |
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Keywords: | current-fed IPT system constant transimpedance gain efficiency optimization constant current contactless transformer |
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