Performance Enhancement of a Three Phase Boost-Cascaded Fifteen Level Inverter Using the PI Controller

Table 2

Comparison of parameters with various controllers.

Parameter	P controller	PI controller	PID controller
Rise time	Drop	Drop	Minor drop
Overshoot	Raise	Raise	Minor drop
Settling time	Small difference	Raise	Minor drop
Steady state error	Drop	Dramatic change	No change
Stability	Poor	Poor	If Kd little better.