Matlab仿真在逻辑无环流可逆调速实验教学中的应用

The application of Matlab simulation in the teaching of logic non-loop-current SR system

晶闸管反并联的电枢可逆线路是可逆调速系统的典型线路之一。为了解决电路中的瞬时脉动环流问题,故引入逻辑无环流控制器,构成逻辑无环流可逆调速系统;但由于原理的复杂性,历来是教学的难点。为了加深学生对相应知识点的理解和掌握,将Matlab仿真技术引入到逻辑无环流可逆调速系统中,利用Matlab/Simulink中的Power System模块搭建系统的模型。仿真结果表明:逻辑无环流可逆调速在突加给定和突加负载时,具有良好的动态响应特性,能够较好的消除环流的影响。

The armature reversible circuit of Thyristor anti-parallel is one of the typical circuits of SR system.In order to solve the problem of transient pulsation in the circuit,a logic non-loop-current controller is introduced to form logic non-loop-current SR system.However,due to the complexity of the principle,it has always been the difficulty of teaching.In order to deepen the understanding and mastery of the corresponding knowledge points,the Matlab simulation technology is introduced into the system.According to the Power-System model of Matlab/Simulink,the system model is built.The simulation results show that the logic non-loop-current controller has a good dynamic response characteristic when the sudden load is given.And It can also eliminate the influence of circulation.