A Novel Electric Insulation String Structure With High-Voltage Insulation and Wireless Power Transfer Capabilities

被引：96
|
作者：
Zhang, Cheng [1 ,2 ]
Lin, Deyan [1 ,3 ]
Tang, Niang [4 ]
Hui, S. Y. Ron [1 ,5 ]
机构：
[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China
[2] MIT, Res Lab Elect, Cambridge, MA 02139 USA
[3] Wuhan Univ Technol, Sch Automat, Wuhan 430070, Hubei, Peoples R China
[4] Guangdong Power Grid Corp Ltd, Elect Power Res Inst, Guangzhou 510080, Guangdong, Peoples R China
[5] Imperial Coll London, Dept Elect & Elect Engn, London SW7 2AZ, England
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2018年 / 33卷 / 01期
关键词：
High-voltage insulation (HVI) string; magnetic resonance; wireless power transfer (WPT); RESONATORS; SYSTEMS;
D O I：
10.1109/TPEL.2017.2706221
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
High-voltage insulation (HVI) strings are commonly used to hold high-voltage electric cables and electrically isolate them from the grounded transmission tower. In this paper, a novel concept of an electric insulation string with HVI and wireless power transfer (WPT) capabilities is presented. Based on the concept of the domino-resonator WPT system, this new structure consists of coil resonators embedded inside totally sealed insulation discs, which are then connected in series to form the new insulation string structure with the simultaneous HVI and WPT functions. This structure allows energy harvested from the ac magnetic field around the high-voltage cable to be transmitted wirelessly to power an online monitoring system in high-voltage transmission tower continuously, thereby reducing the storage requirements of the battery. The design and analysis of this new WPT structure based on the dimensions of commercially available HVI rod are included. Practical measurements obtained from a hardware prototype of about 25 W have been obtained to confirm the WPT capability of the proposal. An energy efficiency of more than 60% has been achieved for a transmission distance of 1.1 m over a wide range of load.
引用
收藏
页码：87 / 96
页数：10
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