| 交流包络调制无线电能传输系统的负载稳压输出研究 |
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| 引用本文： | 孙跃,张路,王智慧,戴欣,蒋成. 交流包络调制无线电能传输系统的负载稳压输出研究[J]. 电力系统自动化, 2017, 41(2): 33-37 |
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| 作者姓名： | 孙跃 张路 王智慧 戴欣 蒋成 |
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| 作者单位： | 重庆大学自动化学院, 重庆市 400030,重庆大学自动化学院, 重庆市 400030,重庆大学自动化学院, 重庆市 400030,重庆大学自动化学院, 重庆市 400030,重庆大学自动化学院, 重庆市 400030 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2015AA016201);国家自然科学基金资助项目(51377183) |
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| 摘 要： | 为了实现交流包络调制无线电能传输系统的输出电压稳定,基于冲量定理与能量守恒原理,在初级侧采用能量注入与自由振荡模态组合的形式,调整注入初级回路的能量规模以适应负载的功率变化,从而实现动态负载条件下输出端的稳压。仿真与实验结果验证了在系统负载切换时,系统输出交流电压保持恒定。
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| 关 键 词： | 包络调制 无线电能传输 稳压 冲量定理 能量注入 |
| 收稿时间： | 2016-10-01 |
| 修稿时间： | 2016-12-28 |
Constant Voltage Output of Wireless Power Transfer System Based on AC Envelope Modulation |
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| SUN Yue,ZHANG Lu,WANG Zhihui,DAI Xin and JIANG Cheng. Constant Voltage Output of Wireless Power Transfer System Based on AC Envelope Modulation[J]. Automation of Electric Power Systems, 2017, 41(2): 33-37 |
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| Authors: | SUN Yue ZHANG Lu WANG Zhihui DAI Xin JIANG Cheng |
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| Affiliation: | 1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China,1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China,1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China,1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China and 1. Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China |
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| Abstract: | In the inductive wireless power transfer system, the specified operating condition such as coil misalignment will cause the coupling coefficient of the contactless transformer to vary in a large range, further affecting the system operating characteristics. To build the coupling coefficient model under large coil misalignment, this paper gives an effective method for calculating the null coupling position based on the method of combining the field concept with circuit. According to the change law of the coupling coefficient, a model for finding the coupling coefficient under coil misalignment is developed. Then a novel contactless transformer with multiple receiving coils is proposed based on the characteristics of magnetic field distribution. A 60 W contactless energy transmission system is designed with the optimized contactless transformer structure. The calculation results of the coupling coefficients are in agreement with actual test results, which proves the correctness of the proposed method and model. The novel coil set has achieved good tolerance to coil misalignment. This work is supported by National Natural Science Foundation of China(No. 51677086)and Aviation Science Foundation of China(No. 2015ZC52037). |
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| Keywords: | wireless power transfer null coupling position coupling coefficient model contactless transformer |
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