高压电容取电技术的研究与设计  

Research and Design of High-voltage Capacitor Power-taking Technology

作　　者：董昱廷 曹新慧 李忠政 周红莲 杜彬 DONG Yu-ting;CAO Xin-hui;LI Zhong-zheng;ZHOU Hong-lian;DU Bin(Institute of Economics and Technology,State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830002,China)

机构地区：[1]国网新疆电力有限公司经济技术研究院,乌鲁木齐830002

出　　处：《自动化与仪表》2020年第3期5-8,26,共5页Automation & Instrumentation

基　　金：新疆科技厅重大科技项目(5230JY18000H)。

摘　　要：针对传统技术中采用电压互感器分压带来的不便,设计出基于电容式高压取电的新型取电设备。该设备将电容、变压器串联构成串联电路,由此实施高压取电;利用电容式高压取电原理,设计了新型的高压取电电容;在电路中增加继电器监测单元和过电流监测单元,保证了电路的安全性;通过电容分压,有效地将电路中的高压转换为低压,将得到的电能存储到超级电容器组中,超级电容器组用作供能装置向电力线电网线路中的负载输出电能,供负载使用。试验表明,采用电容式分压原理进行高压取电,不仅用法灵活,减轻了电力线路的运行负担,还提高了带载能力,具有较好的实用价值。Aiming at the inconvenience caused by the voltage division of the voltage transformer in the traditional technology,a new type of power taking equipment based on capacitive high voltage power taking is designed. The device uses capacitors and transformers in series to form a series circuit,so as to carry out high-voltage power supply. Based on the principle of capacitive high-voltage charging,a new type of high-voltage charging capacitor is designed. Relay monitoring unit and over-current monitoring unit are added in the circuit to ensure the safety of the circuit. The high voltage in the circuit is effectively converted into low voltage through the capacitive voltage division,and the obtained electric energy is stored in the super capacitor bank,which is used as the energy supply device to output electric energy to the load in the power line grid line for the use of the load. The test shows that using the capacitive voltage division principle for high-voltage power take-off is not only flexible in use,reduces the operation burden of power lines,but also improves the carrying capacity,which has better practical value.

关 键 词：电压互感器 电容式高压取电 超级电容器组 继电器监测单元 过电流监测单元 

分 类 号：TM744[电气工程—电力系统及自动化]