Wind power generation hydraulic coupling control system and control method thereof
A technology of control system and hydraulic coupling, which is applied in the control of wind turbines, combination of wind turbines, wind power generation, etc. It can solve problems such as difficult maintenance, unstable generator output voltage and frequency, unfavorable generator grid-connected operation, etc.
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[0009] Referring to the accompanying drawings, a wind power generation hydraulic coupling control system mainly composed of three wind turbines 5, three gearboxes 6, and generator 17 is characterized in that it is between the shaft end of the gearbox 6 and the generator 17. A hydraulic pump system 1, a pressure limiting system 2, a pressure compensating and stabilizing system 3, a constant current and constant speed system 4 and a braking system 4-1 are installed in the room. Hydraulic pump system 1, which includes three plunger pumps 7, three filters with magnetic elements 9, three pumps with plug-in one-way poppet valve DJV 1 , DJV 2 , DJV n , Cartridge relief valve JV 12 , pressure switch SP 1 , pressure gauge By 1 , proportional relief valve YL 1 , cooler 8 and oil pool 10; the rotor of the hydraulic plunger pump 7 is fixedly connected to the shaft of the gearbox 6, and a filter 9 with a magnetic filter element is installed between the oil suction inlet of the hydraul...
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