VOLTAGE ORIENTED CONTROL – SIMULATION
Then, the system transfer function
Figure 3.16 : Voltage control loop
Â Controller transfer function
is the estimation of
(rad/s) is the bandwidth of the voltage controller. Then,
give us a proportional coefficient
(Em is the amplitude of the three phase input voltage in the model section
“2.2.2 Mathematical model”)
We will choose
at least a decade smaller than the current control bandwidth.
As we can see there is no integrator part in the controller. In our controller, we will add a small
integrator part with gain
3.5.3 Voltage saturation, anti windup, active damping SATURATION, ANTI WINDUP
Exactly as the current controller, we have to add a saturation (on current id*) and an anti windup is highly recommended (useful is the saturation limit is reached).
In this case we can write :