In every electrical system with non-linear loads the problem of harmonics exists. For large industrial motor drives power electronics equipment is needed to operate them properly, so a solution on how to minimize the effects that they have on the utility network is highly needed. Selective Harmonics Elimination Pulse-width modulation (SHE PWM) represents one possible solution to the problem. By calculating switching angles for the Active Front End (AFE) rectifier it is possible to obtain a desired voltage wave form that will diminish some of the negative impacts nonlinear equipment cause to the supply network. Switching angles are calculated using the Newton-Rapson mathematical method which can be simplified by using a computer software program like MATLAB. To control the AFE a closed-loop control system that operates in a synchronous rotating dq frame is used. A model of the system that controls the amplitude and phase of the AFE voltage is suggested. The model is then presented in a software environment called PLECS, and its functionality is confirmed in the simulation results.