Simulink Current Controller with k droop

Hello guys, I have made the model below in the simulink and i am trying to control the current to non exceed a specific value so i implify the controller in order when we exceed a desire current to correct it through the active power. It works but when i try to plot it i get something like that has anyone any idea how to stop that distortion in my system? which block do i have to use?

[Giorgos Tsiakas]

That is my model