The Research And Design On The Direct-driven Wind Power Generation System

Wind power system catch people's attention along with the increasingly prominent of energy problem,at the same time,it becomings a very hot issue in academic research."The Research and Design of the Direct-driven Wind Power Generation Systems"is a cooperation project of 863 projects and Xiangtan Electrical Manufacturing Factory. This article will analyze and study the control of Wind power converter.At first, this paper analyzed the significance and the necessity of the wind power converter technology. Introduced wind power generation technology research present situation in home and abroad. Today, double-fed and direct-drive wind power for research is to direction. The main circuit overall construction which is direct-driven wind power generation converter is designed. Afterwards, analysis this topology the control strategy and the principle of work, In wind power generation each kind of variable current foundation, the paper drew out the key research the spurt value control strategy concept and the concrete realization,the electrical machinery side used the indirect magnetic field direction detection vector control to complete to the electrical machinery rotational speed adjustment, incorporated the converter to use the synchronized PI control realization DC voltage constant and the net side specific power factor control goal. The paper has established the PWM rectifier and the PWM converter mathematical model according to the control principle, has given under the MATLAB/Simulink simulation result, and finally has confirmed the control method feasibility.At last, in the simulation foundation the system hardware and software is designed. Including the CPU control panel, the IGBT Driven paned, the electric current and voltage pick the model the design. And the paper has given each partial related parameter and the concrete application circuit diagram and the DSP control software flow chart. The final output has confirmed the theoretical analysis, indicated this article the control strategy and the hardware design have the good stable state and the dynamic operating performance, is suitable in the high efficiency wind power generation situation.