低压开关及控制MATLAB仿真

1、低压开关及控制实验目的：1. 掌握高压断路器和低压开关的区别。2. 熟练运用MATLAB中的电力系统工具箱对理想低压开关电路进行建模， 观察分析其波形。实验内容：(1)如图1.1所示，构建理想开关电路，观测理想开关的投切效果。开关未 并联缓冲电路，导通时电阻为0.01約开关初始为合闸状态，0.06 s时开关断开, 0.165 s时重合闸成功.(2)设置模块参数和仿真参数。双击理想开关模块，按图1.2设置参数。双击定时器模块，按图1.3设置开 关初始为合闸状态，0.06 s时开关断开，0.165 s时再次合闸。电压源Vs的有效值为120 V,频率为50 Hz。串联RLC支路中，电阻R= 10 Q

2、,电感L = 0.1 H，电容C=10卩F。打开菜单SimulationConfiguration Parameters，选择 ode23tb 算法，同时设置仿真结束时间为20 ms图1.2图1.3I帕 BfecbAC Vtshg# Sourw比ar :乞也 OH Inajk.l IIeJc）fdefil iimtda.1 AC TdYtBr lanifcf.Faz act eraIFeib uplstude12DFhajH r（3af ） 3QiFr putney |】Zi00Thjlp“ t uhje-jIts NTL1X -ETiALt 5耳1.4图1.5图1.6图3.2三相电压电流测量

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