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A device for charging wind power grid

A technology for wind turbines and power grids, which is applied in wind power generation, parallel feeding arrangements for a single grid, etc., and can solve problems such as direct grid connection of wind power generation.

Active Publication Date: 2016-04-06
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problems of wind power generation directly connected to the grid

Method used

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  • A device for charging wind power grid

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Effect test

Embodiment 1

[0011] Embodiment 1: The working voltage of the output line of the power supply is 220 volts, and the frequency is 50-60 Hz.

Embodiment 2

[0012] Embodiment 2: The working voltage of the output line of the power supply is 110 volts, and the frequency is 50-60 Hz.

Embodiment 3

[0013] Embodiment 3: The working voltage of the output line of the power supply is 55 volts, and the frequency is 20 Hz.

[0014] Working principle and working process of the present invention:

[0015] When the wind turbine rotates to generate electricity, the generated current accumulates in the supercapacitor array, and through the switching circuit, a saturated pulse current output is generated to drive the pulse motor to rotate, and the AC power frequency generator is driven by the belt to generate power frequency AC power. The alternating current is transformed by a transformer and supplied to the transmission line. Realized the direct conversion of wind power to power transmission line for utilization.

[0016] The output voltage of the transformer is adaptively designed according to the working voltage value of the transmission line.

[0017] The present invention uses supercapacitors for electricity storage, which is beneficial to generate saturation pulses through ...

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Abstract

The invention provides a device enabling wind-generated electricity to charge a power grid. A current output line of a wind driven generator is connected with a super capacitor array; the super capacitor array is connected with a pulse motor through a wire; the pulse motor is in transmission connection with an alternating-current power-frequency generator through a belt; a shaft of the alternating-current power-frequency generator is provided with an inertial energy storage wheel; a power source output line of the alternating-current power-frequency generator is connected with a transformer; and a wire which is led out from the transformer is connected with a power transmission wire. The device can directly convert the wind-generated electricity into alternating current which is consistent with the working frequency and voltage of the power transmission wire, wherein the alternating current can be directly connected into the power grid; and the device can be used as a device which can make the wind-generated electricity directly charge the power grid.

Description

technical field [0001] The invention provides auxiliary equipment for a wind power generator, in particular a device for charging a wind power grid. Background technique [0002] Existing power generation is mainly hydropower, coal thermal power, wind power, tidal power, nuclear power and solar power. However, these large-scale power plants have high construction costs, large initial investment, long construction period, and are likely to cause damage to natural resources; at the same time, coal-fired power plants and nuclear power plants are likely to cause environmental pollution. [0003] At present, when wind power is connected to the grid, accidents of power system paralysis occur from time to time, mainly because the inverter hardware circuit and control circuit are not perfect. causing the grid to collapse. Contents of the invention [0004] In order to realize the direct charging of wind power generation into the grid, the present invention proposes a device for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCY02E10/76
Inventor 王世成刘湘辉李军吕广占王海波
Owner STATE GRID CORP OF CHINA
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