| Summary: | 碩士 === 國立中山大學 === 電機工程學系研究所 === 103 === In this thesis, a wind power system with generator, servo motor and coaxial coupling structure is proposed. In terms of generators, the three-phase excited synchronous generator is used in this system so that it can be connected to the grid network directly without any energy consumption of converter.
When the generator is connected to the grid network, the amplitude, phase, phase sequence and frequency must be satisfied with the Grid-connection standard. Therefore, the batteries are installed in the excited synchronous wind power system so that the surplus wind power can be charged in the batteries. By using voltage tracking control strategy, the voltage amplitude of generator can be the same as grid network. Besides, The Optimal power control strategy which is another controlling strategy can let the output power of generator track the changing of input power. That is to say, the efficiency of energy conversion can be the most efficient scheme from input power of wind to output power of generator. According to the results of experiment, the proposed Voltage Tracking Control Strategy governs energy flow to maintain steady output voltage. Optimal Power Control Strategy improves the efficiency by reducing power consumption of servo motor.
|
|---|
