VOLTAGE ORIENTED CONTROL – SIMULATION
Figure 3.43 : Simulation‐Balanced 3‐phase system, noise
Remark and conclusion We saw that the coefficients
can be calculated in Simulink according to
Nevertheless, this can create a simulation issue at beginning of the simulation. We assume that for a first implementation and a stiff grid, fixed coefficients can be easily used. Another solution could be to start with fixed coefficients then switch to variable values.
To remove the oscillations on theta, we advice to reduce the PLL bandwidth to 5Hz.
3.7.3 Improvements and conclusion
As indicated in some papers (for example, see  in the case of amplitude distortion, frequency distortion, phase distortion, harmonics, phase loss, random noise, the conventional PLL
presented here is not enough.
and a phase locker.
Figure 3.44 : PLL proposed by