基于Matlab的变压器差动保护仿真设计

Simulation Design of Transformer Differential Protection Based on Matlab

微机型继电保护装置逐步代替了常规的模拟式继电保护后,我们难以得知继电保护装置的内部动作行为,因此,利用Matlab工具箱建立变压器差动保护仿真模型,用以观察保护各个模块的动作情况。仿真结果表明,该差动保护各模块均能正确实现其保护的功能,并且具有较好的可靠性与速动性。

After a microprocesser relay protection device replaces conventional analog relay protection,it is difficult to know the internal motion of the relay protection device.So,use Matlab work-box to build a simulation model of the transformer differential protection in order to watch acting conditions of various protection models.The simulation shows that the differential protection models can achieve their protection functions and have better reliability and quick-acting.