Modeling and analysis of three-phase inverter based on generalized state space averaging method

Aiming at the deficiency of common methods in inverter modeling, the modeling of three-phase three-wire inverter based on generalized state space averaging method is presented in this paper, which also takes the dead-time effect into consideration. By using the proposed method, the calculating fundamental components of voltages and currents are in accord with the simulation and experiment of actual devices considerably compared with conventional state-space averaging method. Besides, it provides effective means for precise closeloop controller design. The simulations by means of Matlab are well developed to describe the proposed theoretical model. In addition, an experimental platform based on three-phase three-wire inverters is built and shown to validate the effectiveness of the mathematical results.