高压输电线路在线监测设备无线供电磁耦合机构优化

doi:10.11930/j.issn.1004-9649.202002133

中国电力 ›› 2021, Vol. 54 ›› Issue (5): 139-147,165.DOI: 10.11930/j.issn.1004-9649.202002133

高压输电线路在线监测设备无线供电磁耦合机构优化

何继勇¹, 周海阔², 朱仁勋²

1. 云南电网有限责任公司丽江供电局，云南丽江 674100;
2. 武汉大学电气与自动化学院，湖北武汉 430072

收稿日期:2020-02-26 修回日期:2020-04-24 发布日期:2021-05-05
作者简介:何继勇(1971-),男,工程师,从事电力生产管理,电力设备管理,E-mail:870101143@qq.com;周海阔(1997-),男,硕士研究生,从事无线电能传输、新能源储能技术等研究,E-mail:2018202070084@whu.edu.cn;朱仁勋(1998-),男,从事电力系统及其自动化等研究,E-mail:632092248@qq.com
基金资助:
国家自然科学基金资助项目(基于共振磁耦合的高压输电线路在线监测设备无线供电理论与关键技术研究，51507114)

Optimization of Magnetic Coupling Mechanism for Wireless Power Supply of High-Voltage Transmission Line On-Line Monitoring Equipment

HE Jiyong¹, ZHOU Haikuo², ZHU Renxun²

1. Yunnan Power Grid Co., Ltd. Lijiang Power Supply Bureau, Lijiang 674100, China;
2. College of Electrical Engineering, Wuhan University, Wuhan 430072, China

Received:2020-02-26 Revised:2020-04-24 Published:2021-05-05
Supported by:
This work is supported by the National Natural Science Foundation of China (Research on Wireless Power Supply Theory and Key Technologies of On-Line Monitoring Equipment for High-Voltage Transmission Lines Based on Resonant Magnetic Coupling, No.51507114)

摘要/Abstract

摘要： 对高压输电线路进行实时精准的在线监测是保障电网稳定运行的有效手段。磁耦合共振无线供电为解决在线监测设备供电困难的问题提供了一种可行方案，但传统磁耦合共振系统耦合程度弱，传输效率对传输距离变化敏感，总体性能欠佳。基于电路模型分析了耦合线圈互感对传输效率的影响，提出了考虑线圈与磁芯耦合影响关系的联合优化方案从而提升传输性能。仿真和实验结果验证了在同轴间距、水平和角度偏移变化时的系统效率提升。为提升磁耦合系统传输效率和距离提供了一种有效方案。

关键词: 输电线路, 磁耦合共振, 互感, 传输效率, 磁芯线圈, 联合优化

Abstract: Real-time and accurate on-line monitoring of high-voltage transmission lines is an effective means to ensure the stable operation of power grids. Magnetic coupling resonance wireless power supply is a feasible solution to the power supply problem of on-line monitoring equipment. However, the conventional magnetic coupling resonance system has a poor overall performance due to its weak coupling and the sensitiveness of its transmission efficiency to the change of the transmission distance. The mutual inductance influences of coupling coils on the transmission efficiency are analyzed through magnetic coupling resonance circuit models, and a joint optimization scheme considering the cross influence of coils and cores is proposed to improve the transmission performance. Simulation and experiment have verified the improvement of transmission efficiency under the change of coaxial spacing, horizontal and angular offsets. This study can provide an efficient insight into the optimization of magnetic coupling system.

Key words: transmission line, magnetic coupling resonance, mutual inductance, transmission efficiency, coil with magnetic core, joint optimization

何继勇, 周海阔, 朱仁勋. 高压输电线路在线监测设备无线供电磁耦合机构优化[J]. 中国电力, 2021, 54(5): 139-147,165.

HE Jiyong, ZHOU Haikuo, ZHU Renxun. Optimization of Magnetic Coupling Mechanism for Wireless Power Supply of High-Voltage Transmission Line On-Line Monitoring Equipment[J]. Electric Power, 2021, 54(5): 139-147,165.

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高压输电线路在线监测设备无线供电磁耦合机构优化

Optimization of Magnetic Coupling Mechanism for Wireless Power Supply of High-Voltage Transmission Line On-Line Monitoring Equipment

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高压输电线路在线监测设备无线供电磁耦合机构优化

Optimization of Magnetic Coupling Mechanism for Wireless Power Supply of High-Voltage Transmission Line On-Line Monitoring Equipment

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