Wind farm power and voltage regulation system containing energy storage and capacity configuration optimization method thereof

A technology for voltage regulation and wind farms, which is applied in the direction of wind turbines that store gravitational potential energy, wind power generation, wind turbine monitoring, etc. High cost and other issues, to achieve the effect of low cost, improved reactive power margin, and long life

Pending Publication Date: 2018-08-17
DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER
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Problems solved by technology

However, the cost of conventional energy storage devices is high, and the high-power power electronic converters used for energy storage access systems have problems of high price and poor stability, making it difficult to

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  • Wind farm power and voltage regulation system containing energy storage and capacity configuration optimization method thereof
  • Wind farm power and voltage regulation system containing energy storage and capacity configuration optimization method thereof
  • Wind farm power and voltage regulation system containing energy storage and capacity configuration optimization method thereof

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[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0057] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0058] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a wind farm power and voltage regulation system containing energy storage and a capacity configuration optimization method thereof. When a power grid load is at a low ebb, thepower grid dispatching power is greater than the output power of a wind farm, compressed air energy storage is in a compressed energy storage mode, and excess wind energy is converted into high-pressure air energy for storage; at the same time, after high-pressure and high-temperature air generated in the compression process passes through a heat exchanger, heat is stored in a heat storage chamberthrough heat transfer oil for preheating expanded air; when the output power of the wind farm is greater than the set fluctuation, an air storage tank releases high-pressure air to generate electricity in an expanding mode, and at the same time, the high-pressure air absorbs the heat of the high temperature heat transfer oil through the heat exchanger and converts the heat into electrical energyto stabilize the fluctuation; and when the output power of the wind farm is greater than the set value, the voltage stability is ensured and the reactive power margin of reactive power compensation equipment is increased by adjusting the power factor of a direct-drive wind turbine unit, the reactive power output by the compressed air energy storage and the output of a static reactive generator.

Description

technical field [0001] The invention relates to a wind farm power and voltage control system including energy storage and a capacity configuration optimization method thereof. Background technique [0002] Energy is an important material basis for the survival and development of human beings. It is related to the national economy, the people's livelihood and national security. It is also the primary field of technological innovation services and applications. Efficient, clean, and low-carbon have become the mainstream direction of energy development in the world today. Nowadays, wind power generation is favored as a typical representative of green energy, and has shown a trend of rapid development. [0003] At present, the impact of large-scale wind power grid-connection on grid dispatching and control is mainly manifested in issues such as active power regulation and reactive power voltage control, such as capacity allocation of backup equipment, reactive power and voltage...

Claims

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Application Information

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IPC IPC(8): F03D9/17F03D17/00F03D80/00F01D15/10
CPCF01D15/10F03D9/17F03D17/00F03D80/00Y02E10/72Y02E60/16Y02E70/30
Inventor 赵金勇李超英李晓博殷红旭
Owner DEZHOU POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER
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