Research For The System Of MW Double Feed Induction Generating

The wind power energy is a green and potentially huge energy which can be regenerative, it has an important significance for our continuable development. With the policy support from our governmentand and the marketing requiement from China market, Mw wind turbine technology developed fast and was applied to real projects widely in China. The foreign companys have held the kernel of the MW double feed induction generator, this was expensive and tied up the development of the producer in own .This study is to research and analyze theory about the DFIG, the design principle of motor and a detailed account generator parameter, combining with our ample experience in producing motor, we can design the MW DFIG of our owns. The wind power have to put in the electricity web, so it is strict for the request of control policy. It is a policy of controllable vector in directional stator magnetic field that the MW DFIG use. This thesis builds a simple mathematical model for the controllable principle, transient stability and harmonic waves of the DFIG, and analyses them. We can distinguish these conclusions, which could come into being instructional effect for the generator designs.We use a prototype of 2MW DFIG that its cooling mode is air-to-air as an example. We thought much about consumers'requests and humanism requirements in the structure of the generator, and preliminarily confirmed the design through the test data.