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Flywheel energy storage array control method based on unit state comprehensive evaluation

A technology of flywheel energy storage and unit state, applied in the field of energy management, can solve problems such as single control target of flywheel energy storage system, and achieve the effect of enhancing reliability and improving safety performance

Pending Publication Date: 2021-08-27
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional flywheel energy storage systems can only adapt to a single control target and realize an independent function in the control

Method used

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  • Flywheel energy storage array control method based on unit state comprehensive evaluation
  • Flywheel energy storage array control method based on unit state comprehensive evaluation
  • Flywheel energy storage array control method based on unit state comprehensive evaluation

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Embodiment Construction

[0046] The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of ​​the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0047] Among them, the accompanying drawings are only used for exemplary description, and represent only schematic diagrams, not physical drawings, and should not be ...

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Abstract

The invention relates to a flywheel energy storage array control method based on unit state comprehensive evaluation, and belongs to the field of energy management. The method comprises the following steps: acquiring flywheel energy storage unit information including flywheel rotating speed, bearing temperature, cabin vacuum degree, motor voltage and current and the like; according to the flywheel energy storage unit information, estimating the state of the flywheel energy storage unit, including the charge state, the health state, the remaining available life, the power state and the like, and meanwhile, realizing online fault diagnosis; and according to the flywheel energy storage unit state estimation result, carrying out high-temperature protection, rotating speed protection, voltage and current protection, cabin vacuum degree protection and the like, and carrying out charging and discharging control on the flywheel energy storage unit. According to the technical scheme, system control over the flywheel energy storage unit can be achieved, overcharge or overdischarge is prevented, the service life is prolonged, and a guarantee is provided for use safety of a flywheel energy storage system.

Description

technical field [0001] The invention belongs to the field of energy management, and relates to a flywheel energy storage array control method based on comprehensive evaluation of unit states. Background technique [0002] Flywheel energy storage is an advanced mechanical physical energy storage technology. It has the advantages of long service life, high conversion efficiency, clean and environmental protection, etc. It is suitable for transportation, emergency power supply, grid connection of new energy power stations, power grid frequency regulation and other fields. performance and power quality are of great significance. The technical threshold of the flywheel energy storage system is relatively high. There are still some urgent problems to be solved in the composite material structure technology, the magnetic bearing technology, and the high-speed and high-efficiency motor technology in vacuum, which are currently in the early stage of market development. [0003] Trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J15/00H02J3/30H02J1/16
CPCH02J15/007H02J3/30H02J1/16H02J2203/10Y02E60/16
Inventor 黄淼李涛李韬杨小永
Owner CHONGQING UNIV OF POSTS & TELECOMM
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