High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator
A wind turbine, stator and rotor technology, which is applied in wind power generation, magnetic circuit static parts, magnetic circuit rotating parts, etc., can solve problems such as low stator utilization, limited application of low-speed large-scale wind turbines, and limited stator space. , to achieve the effects of low manufacturing cost, reduced output current, and high space utilization
Inactive Publication Date: 2007-11-21
SOUTHEAST UNIV
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Problems solved by technology
However, due to the limited space of the stator of the disc permanent magnet generator, the utilization rate of the stator is low, which limits its application in low-speed large-scale wind turbines.
Method used
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[0016] The present invention adopts a special motor structure, that is, a multi-layer stator and rotor are arranged in a larger generator body space according to actual application requirements, and the stator structure is similar to that of a common outer rotor inner rotor motor. The stators of each layer are fixed on the stator fixing bracket 6 on one side of the motor end cover, and the rotor is fixed on the rotor fixing bracket 7 on the other side of the motor end cover. Assuming that the outermost stator of the motor is the first-layer stator, the odd-numbered stator teeth face inward, which is similar to the traditional outer stator, and is referred to as the outer layer stator 1; the even-numbered layer stator teeth face outward, similar to the traditional motor inner stator, referred to as the layer Inner stator 2. Each layer of rotor is composed of rotor core ring 3, rotor core ring outer wall permanent magnet 4 attached to the rotor iron core ring 3 outer wall, and r...
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The invention relates to a large capacity direct-drive multilayer fixed-rotor permanent magnetic wind generator, which is formed by multilayer stator and relative multilayer rotor. Wherein, the stator of each layer comprises the outer stator (1) and the outer stator (2) which are individually mounted at two sides of stator support ring (10); the multilayer stator support ring is fixed on the stator fixing support (6); the rotor iron core ring outer wall permanent magnet (4) and rotor iron ring inner wall permanent magnet (5) of each layer rotor are individually mounted on two sides of rotor iron core ring (3); the rotor iron core ring is fixed on the rotor fixing support (7); the center of rotor fixing support is fixed on the rotational axle (8) whose one end via the bearing (9) is connected to the rotor fixing support (6); the rotor iron core ring outer wall permanent magnet (4) and the rotor iron core ring inner wall permanent magnet (5) with opposite poles are intercrossed distributed on the inner and outer walls of each layer rotor iron core ring (3). The invention avoids the gear box, improve the output voltage and system efficiency, and reduce the whole cost.
Description
technical field [0001] The invention relates to a large-capacity direct-drive multilayer stator-rotor permanent magnet wind power generator, which belongs to the technical field of generator manufacturing. Background technique [0002] As a clean and renewable energy source, wind energy will have a very broad development prospect as the technology gradually matures and its operating cost will be lower than that of hydropower and thermal power in the future. Wind turbines are a vital core link in the development of wind energy. The speed of large wind turbines is as low as tens of revolutions or even more than a dozen revolutions, so it has to rely on a speed-up gearbox to generate power-frequency alternating current through a generator with a normal speed. As the wind turbines are installed at tens of meters high in the wild, they are subjected to severe heat and winter, harsh environmental conditions, harsh working conditions of the speed-up gearbox, high cost, and heavy m...
Claims
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IPC IPC(8): H02K1/12H02K1/27
CPCY02E10/725Y02E10/72
Inventor 林鹤云刘细平杨成峰
Owner SOUTHEAST UNIV