Power Control Technology Of Wind Power System And Laboratory Simulation

Now with energy resources being consumed and environment empoison being serious, wind power is paid great attention to by many countries as renewable resource. The technology of wind power also becomes research hotspot. Pitch-control which determines the efficiency and stability of the wind power system is one of the key technologies of wind power. It needs many experiments to research wind power technology, how to do experiments under laboratory condition is an important problem. In the thesis, on the basis of analyzing the basic theories of wind turbine and the principle of pitch-control, a control strategy is proposed and verified according to simulation. Then after doing analysis and demonstration of previous methods of simulation of wind turbine characteristic, a new method which is based on DTC of asynchronous is proposed. According to simulation, the effectiveness of the method is verified. Finally, a simulator test rig of wind turbine characteristic based on the method is developed, and lays a foundation for the experiments and research in the future.