matlab与纵联差动保护的结合，精确计算，工程应用。-matlab combination with longitudinal differential protection, accurate calculation, engineering applications.

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。(The simulation longitudinal differential protection has certain learning significance. The SIMULINK simulation model is established to simulate the closed range longitudin