中文摘要：

针对有源电子式互感器中高压侧电路的供能问题，研究了特制线圈的供能方法。先对特制线圈绕线匝数与最小启动电流问的关系进行研究，提出改善最小启动电流的方法；然后设计并实现了两种方案所对应的硬件电路，比较了两种方案的优缺点。特制线圈与硬件电路联合测试的结果表明在≤12A的启动电流下，性能较好的供能方案能够提供590mW的功率输出．从而为电子式互感器高压侧电路的设计提供丁能量保证。

英文摘要：

The power supply method based on special coil is especially studied, and two different design projects are put forward and realized. Firstly, the relation between coil turns and minimal starting current is revealed, and the measures to improve the minimal starting current are presented. And the corresponding hardware of two projects is finished, and the characteristic of different projects is illustrated. At last, the test of two different projects is carried out respectively. Results show that the better method could provide 590 mW power when the minimal starting current is less than 12 A. Thus the research result will provide powerful support for the design of high voltage side circuit of active electronic transformer.