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Diirect-driven generating set

A technology for generator sets and generators, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of high noise and torque fluctuation of direct-drive switched reluctance generators, improve market competitiveness and reduce tilt. The effect of turning torque and convenient transportation

Active Publication Date: 2014-07-02
GUODIAN UNITED POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is worthy of further research and discussion, including the design of low-speed SRG and supporting power converters, and even the research of grid-connected inverters. Disadvantages such as obvious torque fluctuation during operation

Method used

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0033] Such as figure 1 As shown, it is a sectional view of the stator and rotor of the direct drive generator in the specific embodiment of the present invention, including the stator and the rotor. The stator includes a stator core 131 and a stator winding 132, and the rotor includes a rotor core 141 and rotor permanent magnets 142 arranged in multiple air slots of the rotor core. The stator winding 132 may adopt a distributed winding form, a fractional slot winding form, a fractional slot single-pitch winding form, and the like.

[0034] Such as figure 2 As shown, it is an enlarged view of the 1 / 16 model of the stator and rotor section of the direct drive generator in the specific embodiment of the present invention.

[0035] The working principle of synchronous permanent magnet reluctance ge...

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Abstract

The invention discloses a direct-driven generator and a direct-driven generating set formed thereby. The direct-driven generator comprises a stator and a rotor, wherein the stator further comprises a stator core and a stator winding; the rotor further comprises a rotor core and permanent magnets placed in no less than one air slot of the rotor core; and the electromagnetic torque of the direct-driven generator comprises a permanent-magnet torque and a reluctance torque. The direct-driven generator synthesizes the characteristics of both a synchronous reluctance generator and a synchronous permanent-magnet generator, reflects a brand-new motor design and running concept, has the remarkable advantages of high power density, wide operation speed range, high efficiency, small size, light weight and the like, and greatly improves the competitive advantage of a direct-driven wind turbine when applied to the large-scale direct-driven wind turbine.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a generator and a direct-drive generator set composed of the generator. Background technique [0002] With the increasing demand for wind power energy in the world, the technological advancement and production cost of wind turbines pose more and more challenges. At present, wind power generators are developing in the direction of high reliability, low maintenance, reduced components, lower costs, high efficiency, and high integration. The general trend is that the capacity of a single machine continues to increase. The variable speed constant frequency direct drive wind turbine stands out in the market competition due to its low maintenance workload and high reliability, and has become a development direction for large wind turbines, especially large offshore wind turbines. In variable-speed constant-frequency direct-drive wind power generation systems, direct-drive electric ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/16H02K1/27H02K51/00
Inventor 肖珊彩秦明
Owner GUODIAN UNITED POWER TECH
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