Water-cooling rotor direct-driving wind driven generator and water-cooling system thereof
A technology of wind power generators and wind power generating sets, applied in wind power generation, cooling/ventilation devices, electromechanical devices, etc., can solve problems such as unsatisfactory cooling effect, high requirements for dynamic sealing, unsafe operation of equipment, etc., and achieve equipment operation The effect of safety, reliable operation and simple assembly process
Active Publication Date: 2012-11-21
SINOPAL (QINGDAO) ELECTRIC CO LTD
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AI Technical Summary
Problems solved by technology
Most of the existing direct-drive wind turbines use forced air cooling to cool the stator and rotor, and the cooling effect is not ideal
However, if the rotor is cooled by water cooling, although a better cooling effect can be achieved, the water cooling system installed outside the hub of the direct drive generator system will be affected by the centrifugal force of the rotor of the wind turbine, so the requirements for dynamic sealing are very high. The equipment is not safe to operate
Method used
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Embodiment Construction
[0015] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0016] Such as figure 1 As shown, the present invention consists of a rotor water cooling system 101 installed in the hub 102 of the wind power generating set, a water-cooled rotor direct-drive wind power generator 103, and an inner stator water cooling system 105 installed in the frame 104 of the wind generating set . Wherein the rotor water cooling system 101 in the hub is installed at the position of the rotation axis of the hub 102, and rotates with the hub at a low speed, so that the cooling system can bear a small centrifugal force. The rotor water cooling system 101 and the inner stator water cooling system 105 are respectively connected to the water-cooled rotor direct-drive wind power generator 103 through pipelines.
[0017] Such as figure 2 As shown, the water-cooled rotor direct-drive wind generator 103 is a dual-stator direc...
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The invention relates to a water-cooling rotor direct-driving wind driven generator and a water-cooling system thereof. The water-cooling system comprises a rotor water-cooling system, a water-cooling rotor direct-driving wind driven generator and an inner stator water-cooling system, wherein the rotor water-cooling system and the water-cooling rotor direct-driving wind driven generator are installed in the hub of a wind driven generator set; the inner stator water-cooling system is installed in the generator seat of the wind driven generator set; the rotor water-cooling system is installed on the position of the revolving shaft of the hub and rotates with the hub at low speed; and the rotor water-cooling system and the inner stator water-cooling system are respectively connected with thewater-cooling rotor direct-driving wind driven generator via pipelines. The rotor and the inner stator both adopt the water-cooling mode, and the rotor and the stator have the advantages of low temperature rise and low fault rate and are reliable to operate. The rotor water-cooling system is installed in the hub, so that the water-cooling system in the hub bears small centrifugal force, a motive seal is omitted, and the equipment is safer to operate. The water-cooling rotor direct-driving wind driven generator and the water-cooling system have the advantages of simple manufacturing and assembling process and high maintainability.
Description
technical field [0001] The invention relates to the technical field of wind power generators, in particular to a water-cooled rotor direct-drive wind power generator and a water cooling system thereof. Background technique [0002] With the country's promotion of clean energy, wind power has been vigorously developed in recent years. In order to reduce the failure rate of wind turbines, direct-drive generators without gearboxes have won a better market. Due to the low speed of the direct drive generator, the self-circulation air cooling method is no longer feasible. Most of the existing direct-drive wind turbines use forced air cooling to cool the stator and rotor, and the cooling effect is not ideal. However, if the rotor is cooled by water cooling, although a better cooling effect can be achieved, the water cooling system installed outside the hub of the direct drive generator system will be affected by the centrifugal force of the rotor of the wind turbine, so the requi...
Claims
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IPC IPC(8): H02K9/197H02K16/04
CPCY02E10/725Y02E10/72
Inventor 王裕峰黄森林周会军王成朱红燕郭靖靖迟克忠杨衎郭强安康平陈恒峰
Owner SINOPAL (QINGDAO) ELECTRIC CO LTD