摘要
输电杆塔实时在线监测技术随着智能电网的同步建设已成为数字化新基建的重要领域,但在线监测设备供能问题亟待解决。由于高低势位绝缘距离的限制,杆塔低压侧监测设备所需能量不能直接由高压侧供给,该文对采用多米诺无线供电系统为杆塔监测设备供电的方式进行研究,利用互感耦合理论对其进行建模分析,结合仿真进一步分析了多米诺线圈位置对系统传输性能的影响规律。结果表明,当传输距离恒定时,谐振线圈采用非均匀多米诺排列的无线供电系统,对其优化可以达到更好的传输性能。在110kV输电线路实际场景中,采用提出的非均匀多米诺排列方式相比于均匀多米诺排列在传输距离为1.015m时传输效率提高了30%,且满足高压环境下的绝缘要求。
With the development of smart grid,on-line monitoring technology of transmission tower has become an important field of digital infrastructure.Furthermore,the problem of power supply of on-line monitoring equipment needs to be solved urgently.The energy required for monitoring equipment at the low voltage side of the tower can not be directly supplied by the high voltage side due to the limitation of insulation distance between high and low potential positions.Hence,the domino wireless power supply system was employed to supply power for the tower monitoring equipment in this paper,and the model was analyzed by using the mutual inductance coupling theory.Combined with the simulation,this paper further analyzed the influence of the domino coils position on the transmission performance of the system.The results show that the wireless power supply system,which is equipped with non-uniform domino coils,can achieve a better transmission performance when the transmission distance is constant.In the actual scene of 110 kV transmission line and the transmission distance is 1.015m,the non-uniform domino arrangement increases the transmission efficiency by 30%compared with the uniform domino arrangement,and meets the insulation requirements in high voltage environment.
作者
王维
曾振炜
王劼忞
杨靖宇
Wang Wei;Zeng Zhenwei;Wang Jiemin;Yang Jingyu(School of Electrical and Automation Engineering Nanjing Normal University,Nanjing 210000,China)
出处
《电工技术学报》
EI
CSCD
北大核心
2022年第17期4315-4325,共11页
Transactions of China Electrotechnical Society
基金
国家自然科学青年基金(51807095)
镇江市重点研发计划-重大科技专项(ZD2020005)资助项目。
关键词
无线电能传输
多米诺线圈
绝缘子
高压输电杆塔
Wireless power transfer
domino coils
insulator
high voltage transmission tower
