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Because the environment that the wind turbine runs in is severe, the generating efficiency is low and the vibration of tower is very obvious. The consequence not only causes economic loss but also lead to the reduction of the wind turbine's lifetime. Basing on the traditional PI controlling system, this passage mainly studies to decrease the vibration of the tower by adjusting the controlling PI parameters...
Flexibility of blade, transmission system and tower observably increase with the development of wind turbines toward to large scale and light weight. Loads suffered by generating set during operational process become increasingly complex. Some control methods can be employed to reduce these loads so as to prolong life span of generating set. For the operating zone above rated wind speed, traditional...
This dissertation is on control system for MW-class wind turbine. The basic control structure is on the performance of wind turbine and is a control system tracked power curve. To track the power curve, we discuss the control method for variable speed variable pitch that is used for torque control and pitch control. Furthermore, the MW-class wind turbine is a large structure and mechanical load created...
In order to fully study the electrical, mechanical and aerodynamic aspects of a wind turbine with a doubly-fed induction generator (DFIG), a detailed model that considers all these aspects must be used. A drawback of many works in the area of wind turbine simulation is that either a very simple mechanical model is used with a detailed electrical model, or vice versa. Hence the effects of interactions...
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