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Liquid compressed air energy storage peak regulation system and method for supplying black-start power supply

A technology of compressed air energy storage and liquid air, applied in the field of black start, can solve problems such as black start of coal-fired units, and achieve the effect of solving the black start problem, flexible operation, simple and compact connection

Pending Publication Date: 2020-12-08
XIAN THERMAL POWER RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the black start problem of existing coal-fired units, and provide a liquid compressed air energy storage peaking system and method for supplying black start power

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  • Liquid compressed air energy storage peak regulation system and method for supplying black-start power supply

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0029] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to a system and method for supplying a black-start power supply, and provides a liquid compressed air energy storage peak regulation system and method for supplying the black-start power supply in order to solve the black-start problem of an existing coal-fired unit. The system comprises a coal-fired generating unit, a first switch and a second switch and further comprises anair compressor, a refrigeration expander, a gas-liquid separation device, an air storage tank, a booster pump, a heater, an air expander and a second generator which are sequentially connected. A first generator in the coal-fired generating unit is connected with an external power supply end through a main transformer and connected with an auxiliary power end through an auxiliary transformer. Oneend of the first switch is connected with the second generator, and the other end is connected with the main transformer; and one end of the second switch is connected with the second generator, andthe other end is connected with the auxiliary transformer.

Description

【Technical field】 [0001] The invention belongs to the technical field of black start, and relates to a system and method for supplying black start power, in particular to a liquid compressed air energy storage peak-shaving system and method for supplying black start power. 【Background technique】 [0002] Black start means that after the entire system is powered off due to a fault, without the help of the external power supply of the system, the units with self-starting ability in the system are started first, and then the units without self-starting ability are driven to gradually expand the power supply range of the system, and finally realize the power supply of the entire system. The process of restoring power. [0003] Black start of coal-fired power plant refers to the recovery and start of the unit after the power failure of the thermal power plant due to system or plant failure. Power plant blackout accident is a major serious accident in the power system. Once a pla...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/22F01K11/02F01D15/10F04B41/02F01K1/04F01K3/14F01B23/10H02J3/28
CPCF01B23/10F01D15/10F01K1/04F01K3/14F01K7/22F01K11/02F04B41/02H02J3/28Y02E60/16Y02P80/10
Inventor 马汀山王妍居文平吕凯张建元黄嘉驷林轶王东晔郑天帅刘学亮杨利
Owner XIAN THERMAL POWER RES INST CO LTD
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