Variable-speed constant-frequency compressed air energy storage peak shaving system and method
A technology of compressed air energy storage, variable speed and constant frequency, which is applied to gas turbine devices, liquid variable capacity machines, pumps, etc. Start fast effect
Inactive Publication Date: 2021-08-06
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
The motor and the generator are different systems, and the efficiency of power exchange is relatively low. In addition, the compressed air needs to be fully used for power generation before it can generate power.
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[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0024] The schematic diagrams of the structures according to the disclosed embodiments of th...
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The invention discloses a variable-speed constant-frequency compressed air energy storage peak shaving system and method. The variable-speed constant-frequency compressed air energy storage peak shaving system comprises an inlet wire transformer, a frequency converter, a variable-frequency synchronous generator, a compressor, a first clutch, a turbine, a second clutch, a compressed air storage tank, a combustion chamber and a PLC. An external power grid is connected with the variable-frequency synchronous generator through the inlet wire transformer and the frequency converter, the compressor is connected with the variable-frequency synchronous generator through the first clutch, and the turbine is connected with the variable-frequency synchronous generator through the second clutch; an outlet of the compressor communicates with the compressed air storage tank, the compressed air storage tank communicates with an inlet of the combustion chamber, and an outlet of the combustion chamber communicates with an inlet of the turbine; and the PLC is connected with the first clutch and the second clutch. According to the variable-speed constant-frequency compressed air energy storage peak shaving system and method, the power conversion efficiency is high, and the power generation starting speed of the unit is high.
Description
technical field [0001] The invention belongs to the technical field of compressed air energy storage, and relates to a variable-speed and constant-frequency compressed air energy storage peak-shaving system and method. Background technique [0002] With the increasing scale of new energy power generation, the problems of intermittency, volatility and even anti-regulation of its power generation are becoming more and more prominent. Effective technical solutions are urgently needed to solve the problem of large-scale grid connection of new energy. Large-scale electric energy storage technology is an effective way to solve this problem, and compressed air energy storage system (Compressed Air Energy Storage, CAES) is considered to be one of the most promising large-scale electric energy storage technologies. , long storage period, and less environmental pollution. [0003] The traditional compressed air energy storage method is that during energy storage, the motor drives the...
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IPC IPC(8): F02C6/00F02C6/16F04B41/02
CPCF02C6/00F02C6/16F04B41/02Y02E60/16
Inventor 王团结何信林孟颖琪刘冲宋晓辉倪继文张文斌杨胜林李毅张少鹏
Owner XIAN THERMAL POWER RES INST CO LTD