A research team led by Kim Mun Hui, a researcher at the Faculty of Electrical Engineering, has developed a small wind power generation system capable of producing maximum power without a control circuit but a protective reactance coil.
A double-wound permanent magnet generator and a protective reactance coil can reduce harmonic loss and ensure maximum output of a wind turbine by increasing inductance and electromotive force coefficient.
The system consists of a wind turbine, a double-wound permanent magnet generator, a three-phase diode bridge rectifier, an inverter, load, etc.
The rotor of a 2kW wind power generation system is a horizontal axis with three blades and its radius is 1.8m.
The air gap flux density of the double-wound permanent magnet generator is higher than that of conventional ones and the air gap is 0.8mm.
The small power generation system is very effective for power generation of less than 10kW.
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