Integral-Type Sliding Mode Control of Variable-Speed Wind Turbine via Backstepping Approach

• Main Authors: Jiang, Guo-Wei, 江國維
• Other Authors: Cheng, Stone
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/32796694293579368518

碩士 === 國立交通大學 === 機械工程學系 === 100 === To capture wind energy effectively and transfer to electric power efficiently, the design of the blades and the wind turbine running at optimum speed under wind speed variation are the key issues. This study uses the integral-type sliding mode via backstepping control of variable-speed wind turbine as variable speed wind power system control strategy. By using the characteristics of backstepping control to ensure that the system is asymptotically stable also in good speed tracking characteristics. The wind turbine system using proposed integral-type sliding mode control is robustness to system parameter uncertainties and outside interference. This control strategy manipulates the wind power generator effectively at operating speed in the unstable environment of the variable wind speed. The system can quickly alter the generator velocity to cope with the wind speed, and also perform inhibition of outside interference, so that the generator output power is more stable to ensure power generation quality. This thesis designs the Integral-Type sliding mode controller with backstepping approach to control the velocity of wind power generator, and compares the advantages and disadvantages with the PI controller. The system using DC motor drives the permanent magnet synchronous generator as an experimental platform. And using DSP F2812 to implement the control algorithm and generates PWM signals to drive the IPM(Intelligent power modular) and generator.