Winding type overlapped rotor brushless double feed generator and its control device

A doubly-fed generator and generator technology, which is applied in the control of wind turbines, electromechanical devices, synchronous generators, etc., can solve the problem of high cost of generators and full-power converters, inconvenient reactive power adjustment of generators, and motor problems. The problem of large diameter and size can achieve the effect of facilitating equipment transportation, reducing the weight of the unit and simplifying the structure of the unit

Inactive Publication Date: 2007-10-10
天津市新源电气科技有限公司
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AI Technical Summary

Problems solved by technology

This model has technical defects such as large motor diameter, inconvenient installation and transportation, high cost of generator and full power converter, and inconvenient reactive power adjustment for generator operation.

Method used

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  • Winding type overlapped rotor brushless double feed generator and its control device
  • Winding type overlapped rotor brushless double feed generator and its control device
  • Winding type overlapped rotor brushless double feed generator and its control device

Examples

Experimental program
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Embodiment Construction

[0031] The specific implementation, structure, features and effects provided by the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] As shown in Figure 1-3.

[0033]A wire-wound telescopic rotor brushless doubly-fed generator, including a generator main body, a stator, a rotor, fan blades 2, and a hub 1, where the fan blades 2 are installed on the hub 1, and in the generator main body, the rotor rotates relative to the stator The structure setting of the fan blade 2 drives the hub 1 to drive the rotor to rotate, and the telescopic rotor generator and the exciter are arranged in the main body, the generator and the exciter rotor are coaxially installed, and the generator and the exciter are arranged in axial parallel structure; The generator and the exciter have independent magnetic circuits. The 15 pole pairs of the generator rotor winding are the same as the 14 pole pairs of the generator sta...

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PUM

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Abstract

The invention includes main body of generator, stator, rotor, fan blades, and wheel hub. Telescope rotor type generator and exciter are setup inside the main body. Generator and exciter are installed in coaxial in parallel structure with own independent magnetic circuit. The control equipment includes centralized control device for set, AC field system of exciter, device for assisting magnetism (DAM), speed sensor of generator, and braking controller for blower fan. The centralized control device for set includes port for inputting measured signal from sensor. Input side of main loop of the AC field system of exciter is connected to output end of stator of the generator, and output side of main loop is connected to stator winding of exciter. Main loop of DAM is connected to the output end of the generator. The output end of the generator is connected to power grid. Advantages are: lightweight, no brush, no gear case, and high efficiency etc.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a variable-speed constant-frequency wire-wound telescopic rotor brushless double-fed generator and a control device thereof. Background technique [0002] Known technology doubly-fed induction generators, as variable-speed constant-frequency units, are widely used in hydropower stations, pumped storage power stations, especially in large-scale wind power generating units, because of the characteristics of variable-speed and constant-frequency operation of the units, the The energy conversion efficiency is greatly improved; and because the active power and reactive power of the generator set are regulated through the small power converter on the rotor side, the control characteristics and control cost of the unit are very satisfactory. Because the speed of large-scale MW-level wind turbines is very low, generally 15-35rpm, such a low speed will increase the number ...

Claims

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Application Information

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IPC IPC(8): H02K17/42H02K17/44H02K19/16H02K19/38H02K3/04H02K3/28H02K5/04H02P9/04H02P9/14F03D9/00F03D7/00
Inventor 王华君杨彦杰商建锋
Owner 天津市新源电气科技有限公司
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