| Nowadays, under the stress of energy and environment, people pay more and more attention to the use of the energy regenerated green and cleanness such as wind energy, water energy and solar energy etc. Wind as a recycled energy resource, has large mercantile potential and environmental benefits. The wind resource of our country is plenty, which has large potential to be utilized. To develop wind electricity and water electricity is a long-term energy resource policy in our country.The wind power generation projects have been developed at high rate for 20 years. Development of the variable-speed constant-frequency (VSCF) AC exited wind generation system is an important subject in this field. The VSCF technique may make good use of wind energy and improve rotor speed as well as the stability of electric power system. Because autocephaly regulation... |
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