井下NUS的零序功率选线算法的Simulink仿真

Simulink Simulation of Zero Sequence Power Line Selection Algorithm of Underground NUS

文章使用Matlab的Simulink工具箱建立了井下NUS单相接地故障的仿真模型,阐述了零序功率选线算法和带有补偿的零序功率选线算法的原理,介绍了基于零序功率选线算法的选线模型的仿真结构,并采用模拟选线装置运行机制的方式对2种选线算法进行了仿真分析。仿真结果表明,零序功率选线算法的选线准确性高,抗干扰能力较强,对故障的反应速度较快,适合作为井下NUS的单相接地故障选线算法。

The paper used Simulink toolbox of Matlab to establish simulation model of single phase grounding fault of underground NUS. It expounded principles of zero sequence power line selection algorithm and zero sequence power line selection algorithm with compensation, introduced simulation structure of line selection model based on zero sequence power line selection algorithm, and adopted method of simulating operation mechanism of line selection device to simulate and analyze the both line selection algorithms. The simulation results showed that the zero sequence power line selection algorithm has high veracity of line selection, strong anti-interference ability and quick response speed to faults and suits to be line selection algorithm of single phase grounding fault of underground NUS.