Simulation of brushless DC drives

A simulation technique for brushless DC drive systems is presented. The operation of the inverter controller is incorporated into the equivalent circuit of the simulation model by means of state array matrices that describe the conduction patterns of each of the inverter devices. Inverter conduction voltages are included in the equivalent circuit representation because they can significantly affect overall system performance for low-voltage applications. The simulation technique is presented for steady-state, transient and fault conditions of operation of the drive system. Predictions are compared with experimental results for a low voltage prototype system