中文说明：
仿真纵联差动保护，有一定的学习意义。模拟输电线路的闭锁式距离纵联保护建立 SIMULINK 仿真模型。加深我们对电气工程和 MATLAB 仿真的理解和认识。
English Description：
Simulation of pilot differential protection has a certain learning significance. Simulink simulation model is established to simulate the blocking distance pilot protection of transmission line. Deepen our understanding of electrical engineering and MATLAB simulation