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Fluid flywheel energy storage system

A flywheel energy storage and flywheel technology, which is applied in the field of flywheel energy storage systems, can solve the problems of high requirements for system space, loss of flywheel energy storage energy, and inability to continuously supply energy for a long time

Active Publication Date: 2021-10-08
SHANDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The flywheel energy storage system has the advantages of large instantaneous power, high energy storage density, high efficiency, long service life, environmental protection and no pollution, etc. However, the flywheel energy storage also has the disadvantage of being unable to supply energy for a long time due to continuous loss of energy and rapid energy release. , and the layout of the flywheel has high requirements on the system space

Method used

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  • Fluid flywheel energy storage system
  • Fluid flywheel energy storage system

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specific Embodiment approach

[0027] The specific implementation of the fluid flywheel energy storage system of the present invention is as follows:

[0028] (1) The energy storage process is as follows: the power source 7 provides power for the first one-way variable pump 8, drives it to absorb oil from the hydraulic oil tank 1 and pumps the oil into the one-way variable motor 2, and the one-way variable motor 2 The hydraulic energy is converted into mechanical energy, stored in the flywheel battery pack 3, and the oil passed through the one-way variable motor 2 flows back to the hydraulic oil tank 1 from its oil outlet.

[0029] (2) The energy discharge process is as follows: the flywheel battery pack 3 releases energy to drive the second one-way variable pump 6 to work, during which the mechanical energy is converted into hydraulic energy to supply energy for the fluid load 4 .

[0030] (3) The unloading process is as follows: When the fluid load 4 is too large and exceeds the system setting value, unlo...

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Abstract

The invention discloses a fluid flywheel energy storage system which comprises a flywheel battery pack, a fluid power system, a power output system and a regulation and control system, wherein the energy input end of the flywheel battery pack is connected with the fluid power system, the energy output end of the flywheel battery pack is connected with the power output system, the power output system is connected with a fluid load, and a regulation and control system is connected between the power output system and the fluid load. The fluid flywheel energy storage system provided by the invention can be used as a supercharging device and an auxiliary power device to be applied to medium and large hydraulic (pneumatic) systems, can also replace a hydraulic energy accumulator or a traditional chemical battery pack, and can realize long-time uninterrupted energy supply.

Description

technical field [0001] The invention relates to the technical field of flywheel energy storage systems, in particular to a fluid flywheel energy storage system. Background technique [0002] At present, energy storage methods include chemical energy storage, physical energy storage and other energy storage methods. Among the physical energy storage methods, the characteristics of flywheel energy storage are more prominent, the charging time is short and the charging and discharging efficiency is high, so it has attracted widespread attention. [0003] From the 1990s to the present, the global research and development of flywheel energy storage technology is mainly concentrated in the United States, Europe and Japan. The United States, Europe and Japan are far ahead of other countries in terms of basic application research of flywheel technology, key technologies and manufacturing processes, industrial development and market operation of flywheel energy storage products. As...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/14F15B21/00F15B20/00F16H47/00F16H57/023H02J15/00
CPCF15B21/14F15B21/001F15B20/007F16H47/00F16H57/023H02J15/007Y02E60/16
Inventor 李琳冯超张铁柱鲁力群孟令菊
Owner SHANDONG UNIV OF TECH