Double-efficiency fuzzy optimization control method for doubly-fed wind generator
A wind turbine, fuzzy optimization technology, applied in motor generator control, electronic commutation motor control, wind power generation and other directions, can solve problems such as search oscillation, and achieve the goal of improving active power output, improving search accuracy, and increasing control effect. Effect
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[0051] Systems for doubly-fed wind turbine control such as figure 1 As shown, the system adopts the vector control system based on the stator flux orientation to realize the decoupling between the generator electromagnetic torque and the rotor excitation. The d and q axis components of the rotor voltage control the generator rotor flux linkage and electromagnetic torque respectively.
[0052] In the actual environment, the speed of the blades changes with the wind speed, and the operating state of the wind turbine will change with the changes of the speed of the blades; When the wind speed is cut, the wind turbines are connected to the grid for power generation; in the maximum wind energy tracking area, the speed of the wind turbines changes accordingly with the wind speed to ensure that the wind energy utilization coefficient of the wind turbines is always maintained at the maximum value. At this time, the wind turbine control subsystem implements constant pitch control, and...
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