Development of a Comprehensive Simulation Model of the Power Supply and Drive System Based on AFE-FC for Power Quality Research

The paper describes an improved simulation model of electrical complex containing in-plant power supply system of an industrial enterprise and main electric drives of a rolling mill based on frequency converters with active rectifiers. The simulation model is designed to study the voltage quality of various parts of the power supply system, taking into account possible complex resonance phenomena in the frequency response of the supply network. The simulation model has been developed in the Matlab-Simulink software package. The simulation model adequacy has been tested by comparing the simulation results with the data obtained by analysing the existing electrical complex operation at the metallurgical enterprise. The developed simulation model can be used when designing electrical complexes and power supply systems of powerful electric drives with frequency converters, as well as to improve their electromagnetic compatibility in the operating systems.