Modeling of semiconductor energy converters for electromagnetic separator power supply

The article deals with the electromagnetic separators which were developed in Kurgan State Agricultural Academy and designed for removing of metal magnetic particles from the plastic liquid materials. The article describes the calculation procedure of the device coils parameters, as well as the technique for modeling of the rectifier and the oscillogram of the variables. The load parameters (active resistance and inductance) were defined for modeling of the rectifier together with the load. The coil resistance was determined by direct measuring of the coil parameters. For inductance determination the coil calculation was performed in the program Elcut. The rectifier modeling in the Simulink program made it possible to determine the required parameters of the power source and its components: the nominal power: 0,140 kW; the nominal current: 0,2 A; the nominal current of the diodes: 5A; the diode reverse voltage 500 V; the connecting wires section: 0,4 mm. The laboratory copy of the electromagnetic separator was made by using the simulation results.