Dynamic Average Modeling of a CSI-based Small-Scale Standalone Wind Energy Conversion System

A current-source inverter-based small-scale standalone wind energy conversion system has been recently proposed. The detailed switch-level model of the system can be implemented using various available circuit-oriented simulation software packages such as Matlab/Simulink. However, the complications associated with such a model, including long simulation time, large memory size requirement, discontinuities and nonlinearities can be avoided when detailed switching transients are not of interest. In this paper, an average-value model of the proposed wind turbine system is systematically developed and verified against the detailed switch-level model, by comparing the simulated open-loop step responses and dynamic closed-loop responses.