〔求助〕关于离散的PID的D的模块
离散的微分模块D模块在simulink里面用的是Discrete Derivative但是一仿真便出现Trouble solving algebraic loop containing 'zhuan_lisan_mianyi2/fuzzy-immune-pi/Subsystem/Discrete Derivative/TSamp' at time 0.008.Stopping simulation.There may be a singularity in the solution.If the model is correct, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)这样类似的错误，不是步长问题肯定。
我试验了下，只有选择ts only和1/ts only才不会发生错误，但此时好像微分后的值一直都为0。
不晓得怎么解决了，大家帮下忙。
我想要的是离散系统下微分的效果。谢谢
页:
[1]