Dynamic modeling of stand-alone micro-wind turbine generator systems for telecommunicati on power supply

Micro-wind turbines incorporating permanent magnet synchronous generators are among the suitable power sources for telecommunication equipment especially in remote areas. Average-value modeling is indispensable for large- and small-signal analysis of such machine-converter systems. However, analytical derivation of accurate models is challenging particularly at low voltage applications due to the non-ideal characteristics of semiconductor switches (rectifier diodes). This paper presents a numerical average-value model of micro-wind turbine generator system. The model parameters are extracted using detailed simulation which avoids laborious analytical derivations. A detailed model of the system is implemented and validated experimentally. The proposed average-value model is verified against measurement and detailed simulation and is shown to accurately predict the response of the system to changes in the wind speed. An improvement in simulation speed of 1,951 times over the detailed switching model is demonstrated.