MATLAB: Three phase fault block

Question

How to use external control fault timing?

I have the algorithm to trip the breaker, but how to apply fault using the external control timing, what block that can be connected to it?

Answer 1

I assume you are referring to the Three-Phase Fault block from SimPowerSystems. If you look at the documentation for the block, you'll see that it says:

External control of fault timing

If selected, adds a fourth input port to the Three-Phase Fault block for an external control of the switching times of the fault breakers. The switching times are defined by a Simulink signal (0 or 1) connected to the fourth input port of the block.

So the answer is any regular Simulink block, the signal has to be either 0 or 1.

HTH,

Arnaud