Research Of Wind Power Generation System Based On Sliding Mode Robust Controller

Extremely rapid development of wind energy development in recent years, regardless of the technical level of development or the development of its installed capacity have created a gratifying achievements, and still maintained its strong momentum of development. Referring to the current situation ahead of wind power, wind power is expected to become the third largest thermal power and hydroelectric power sources in the next decade. Wind power technology in recent years has become a world-class hot research topic.Herein by reference lot about wind power technology literature on system modeling, optimization of excitation control DFIG conducted in-depth research. In the paper, a detailed analysis of double-fed motor, derived its operation principle and its basic mathematical model, and detailed derived simplified mathematical model based on the rotating coordinate system, based on this analysis of its vector control, the mathematical model of network simulation model of PWM inverter voltage source inverter side, the rotor-side converter of a mathematical model. This paper analyzes the characteristics of wind turbine and power characteristics, we propose a measure does not rely on wind to achieve double-fed wind power generation system has a maximum power point tracking (MPPT) control strategy, so tracking and capture maximum wind energy possible. It also established a double-fed wind generator excitation control model no-load operation and power generation operation, we propose a new type of wind power systems based on fuzzy logic technology with robust sliding mode variable structure control method, and the sliding surface and control law in the Matlab/Simulink simulation platform for system simulation, verification methods in the study of the text is correct. This study for the promotion of green energy technologies, energy conservation has important theoretical and practical significance.