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Combined control system and method based on compressed air energy storage and thermal power plant

A technology of compressed air energy storage and joint control, which is applied in heating systems, hot water central heating systems, heating methods, etc., can solve the problems of low wind energy absorption capacity of the power grid, reduce start-up and stop costs, reduce output, Effect of reducing heating output

Inactive Publication Date: 2017-01-11
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The anti-peaking characteristics of wind energy lead to low wind energy absorption capacity of the grid

Method used

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  • Combined control system and method based on compressed air energy storage and thermal power plant
  • Combined control system and method based on compressed air energy storage and thermal power plant
  • Combined control system and method based on compressed air energy storage and thermal power plant

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Embodiment Construction

[0024] The present invention provides a combined control system and method based on compressed air energy storage and thermal power plants in the case of heating in winter. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] figure 1 It is a schematic diagram of system connection of a control scheme of the present invention.

[0026] The system consists of a liquid temperature-controlled compressed air energy storage device 5 and a thermal power plant 8 .

[0027] The liquid temperature-controlled compressed air energy storage device 5 is composed of a high-pressure gas container 1, an internal temperature-controlled liquid piston 2, a generator-motor 3, and a pool to be heated 4; wherein the high-pressure gas container 1 and the internal temperature-controlled liquid piston 2 pass through the high-pressure gas pipeline 15 connection, the internal temperature control liquid piston 2 and the gen...

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Abstract

The invention relates to an air compression energy storage and thermal power plant-based joint control system and an air compression energy storage and thermal power plant-based joint control method. The system consists of two parts, i.e. a liquid temperature control air compression energy storage device and a thermal power plant. In a load peak under the condition of heating in winter, a part of hot water for heating in the thermal power plant is supplied to the liquid temperature control air compression energy storage device for the expansion heat absorption of high-pressure gas during power generation, and power is generated by the liquid temperature control air compression energy storage device to reinforce the power supply output of the thermal power plant; in a load valley, the liquid temperature control air compression energy storage device compresses the air by virtue of electric energy, water to be heated is heated by heat released in an air compression process, and the heated water is delivered to the thermal power plant for heating, so that fuels of the thermal power plant are saved. According to the system and the method, the heating power difference of the load peak and the load valley is reduced, peak clipping and valley filling functions are realized, and the starting and stopping cost of the thermal power plant is further lowered; the wind power absorption capability is enhanced, and the power generation cost of the thermal power plant is lowered.

Description

technical field [0001] The invention belongs to the compound technical field of new energy, energy storage technology and power dispatching, and in particular relates to a combined control system and method based on compressed air energy storage and thermal power plants. Background technique [0002] In traditional winter heating conditions, such as cities in northern China, the heating between day and night is unbalanced—the load is high during the day, and the output of the thermal power plant is large, and the heat that can be provided is also large; The heat is also small. However, the actual heating demand during the day and night should be almost balanced, and even due to the lower temperature at night, the heating demand at night should be relatively more. Therefore, in the case of traditional heating, there is a contradiction between the above-mentioned power generation and heating. [0003] In addition, wind energy has the characteristic of anti-peak regulation—lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B9/12F04B35/02F04B17/03F03B13/00F24D3/00
Inventor 姜彤于大勇李冬雪马强林佳谭明甜姜宇萌郑祥常
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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