The attached simple model with SIMULINK after clearing the fault, the Simulink is having abnormal responses. Bus voltage V3 is oscillating. anyone facing that issue?
Try varying the inductance and capacitance parameters of the transmission line. Is it possible to share the file?
It seems that your model has somehow classical power system without power electronic. There are three phase source with step up transformer and transmission line and load at the end. One conclusion for your simulations result for three phase faults is that you get to sensitive response. Also at the end this voltage oscillations is not some what you can get in real world. I see there are no circuit breaker model. So you must check in fault module how you set all timers and others thinks. My suggestion is that you can put circuit breaker model on line or load. On your figure I do not see what type of simulations you use, Discrete or ? Choosing a right mode for simulations can help. Anyhow model is not reflect real behavior of power system. You cannot get such sensitive response for current with so many saw. Your model for power transformer should be check.
Dr. Hany A. Hamed can you please share the Simulink file with me.
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