从仿真结果进行电力系统故障分析

Fault Analysis Ofelectric Power Syetem on Data of Simulination

继电保护作为电力系统安稳运行的首道防线,其作用不言而喻。通过故障仿真分析,可以有效地评估继电保护算法、设计方案的性能。本文利用Matlab进行故障仿真,从变压器差动、序功率方向、纵联弱馈等角度分析了算法的性能,针对影响因素提出了相应的对策。最后总结出建立完备的电力系统故障仿真模型的思路和结果分析的方法。

Relay protection plays an essential role to safeguard the electric power system. It’s an effective way to estimate the scheme and arithmetic of relay protection on the base of data from fault simulation. The article analyzes the characteristic of PDIF, sequence direction element and weak infeed of teleprotection, which is on a simulation model set up by Matlab, and some corresponding schemes are given later. Finally, the article sums up the outline to set up an improved complete system simulation model, and the paper is ended by some methods to analyze the simulation data.