摘要
针对配电网单相接地故障电流大且谐波含量高、电弧不能自然熄灭的问题,研究了有源电力电子装置加消弧线圈的补偿新拓扑和可进行高次谐波补偿的有源消弧系统。在分析有源全补偿原理的基础上,设计了主从式补偿拓扑的关键参数和系统闭环调节器参数,提出了整个系统的全补偿方案。利用Matlab进行建模和仿真验证,结果表明所提方案可以有效减小单相接地故障残流,加速电弧熄灭,提高配电网的供电可靠性。
According to the problems that the single-phase grounding fault current of distribution network is large and its harmonic con- tent is high, the arc can not extinguish naturally, a new compensation topology of active power electronic devices plus arc suppression coil and the active arc suppression system with high harmonic compensation are studied .On the basis of analyzing the principle of active full compensation, the key parameters of compensation topology and the parameters of system closed loop regulator are designed in the master-slave compensation topology, and then the full compensation scheme of the whole system is proposed. The Matlab simulation re- suits show that the proposed full current compensation scheme can effectively reduce the residual current of single-phase grounding fault, accelerate the arc extinguishment and improve the power supply reliability of distribution network.
作者
吕涛
邵文权
程远
张志华
LU Tao;SHAO Wenquan;CHENG Yuan;ZHANG Zhihua(School of Electronic and Information, Xi＇ an Polytechnic University, Xi＇ an 710048, China;State Grid Shaanxi Electric Power Research Institute, Xi＇an 710054, China)
出处
《智慧电力》
北大核心
2018年第4期33-38,共6页
Smart Power
基金
陕西省科技厅工业攻关项目(2016GY-101)
陕西省教育厅资助项目(17JK0337)~~
关键词
配电网
有源消弧
全电流补偿
闭环系统
distribution network
active arc-suppression
full current compensation
closed-loop system
