Abstract:
In the present study, a new strategy of analysis was used to determine the optimal interval of a single-phase
resistive load to operate a fixed-speed wind turbine. The essence of this optimal range is to enable the generator to
have stable voltages and current balances, large power, and an acceptable frequency range, and also mitigate generator
overheating. The generator windings and excitation capacitances were prepared according to the C-2C connection
scheme with suitable values of excitation capacitances. The admittance matrix of the system was based on positive and
negative sequence generator voltages and was calculated by symmetrical components theory. The generator performance
was found through optimization of the determinant admittance matrix magnitude. Moreover, balanced position of the
generator can be achieved near the maximum load power. Consequently, the best interval of resistive load of the generator
(1.5 kW) was found around 2% voltage unbalance factor. The appropriate optimal load was approximately ±6% of the
perfect balance resistive load value.
