Average-value model of energy conversion system consisting of PMSG, diode bridge rectifier and DPC-SVM controlled inverter

Abstract

In the paper an energy conversion system consisting of a permanent magnet synchronous generator (PMSG), diode bridge rectifier and the DPC-SVM controlled inverter is analyzed. At present this structure is frequently used especially in renewable energy systems of low power. Simulation of this system is troublesome due to the high switching frequency of semiconductors. To avoid this problem an average value modelling is applied. Presented analysis considers only fundamental harmonic components of current and voltage. The system components are structured in the form of equivalent circuits that include also power losses. The model is verified in the laboratory test bench of 30 kW nominal power by the steady state characteristics and transient performance comparison.