Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Safety control device and safety control method of energy storage flywheel array system

An energy storage flywheel and safety control technology, which is applied in the field of safety control devices of an energy storage flywheel array system, can solve the problems of uncontrollable braking, simple safety control strategy, inability to brake the energy storage flywheel, etc., so as to improve stable operation and improve Braking efficiency, improved safety and the effect of redundancy

Pending Publication Date: 2022-05-31
国网内蒙古东部电力综合能源服务有限公司 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the braking resistor is connected to the DC side and the grid-side converter fails, the energy storage flywheel will not be able to brake; when the braking resistor is connected to the flywheel side and the machine-side converter is directly connected to the energy storage flywheel, if the failure, resulting in uncontrollable braking
Moreover, the existing safety control strategy for a single energy storage flywheel is simple and cannot be applied to the entire energy storage flywheel array system, thus failing to guarantee the stable operation of the entire energy storage flywheel array system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Safety control device and safety control method of energy storage flywheel array system
  • Safety control device and safety control method of energy storage flywheel array system
  • Safety control device and safety control method of energy storage flywheel array system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 2As shown, this embodiment provides a safety control device for an energy storage flywheel array system, which includes a controller and an energy storage flywheel array system 103, and the energy storage flywheel array system 103 includes a switch cabinet 5 and a plurality of A parallel energy storage array module 102; the energy storage array module 102 includes a grid-side converter 4 and a plurality of parallel energy storage flywheel systems 101 connected thereto, and the energy storage flywheel system 101 includes a machine-side converter 3, storage An energy storage flywheel body 1 and a braking resistor 2, the braking resistor 2 is arranged between the machine-side converter 3 and the energy storage flywheel body 1;

[0039] Wherein, the generator-side converter 3 is a frequency converter in this embodiment; the grid-side converter 4 is represented by PCS in this embodiment.

[0040] In this embodiment, the controller is connected to the first r...

Embodiment 2

[0052] refer to image 3 , this embodiment provides a control method based on the safety control device of the energy storage flywheel array system as described above, which includes:

[0053] Determine the fault type of the energy storage flywheel array system. When it is judged that the electrical system is faulty, according to the faulty components in the electrical system, then determine the action of the switchgear and turn on the braking resistor; when it is judged that the energy storage flywheel body is faulty, close Switch on the switch cabinet, turn on the braking resistor, and then determine the charging and discharging work of the faulty energy storage flywheel body according to the energy stored in the flywheel energy storage system at the time of the fault.

[0054] In this embodiment, there are three types of electrical system faults, which are switch cabinet faults, grid-side converter faults, and machine-side converter faults.

[0055] When it is judged that ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of energy storage flywheels, and provides a safety control device and a safety control method of an energy storage flywheel array system. The device comprises a controller and an energy storage flywheel array system, and the energy storage flywheel array system comprises a switch cabinet and a plurality of parallel energy storage array modules connected with the switch cabinet; the energy storage array module comprises a grid-side converter and a plurality of parallel energy storage flywheel systems connected with the grid-side converter, each energy storage flywheel system comprises a machine-side converter, an energy storage flywheel body and a brake resistor, and the brake resistor is arranged between the machine-side converter and the energy storage flywheel body; the controller is used for judging the fault type of the energy storage flywheel array system, and when it is judged that an electrical system has a fault, the action of the switch cabinet is determined and the brake resistor is started in sequence according to fault elements in the electrical system; when it is judged that the energy storage flywheel body breaks down, a switch of the switch cabinet is closed, a brake resistor is started, and charging and discharging work of the fault energy storage flywheel body is determined according to energy stored by the flywheel energy storage system at the fault moment.

Description

technical field [0001] The invention belongs to the technical field of energy storage flywheels, and in particular relates to a safety control device and a safety control method of an energy storage flywheel array system. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The flywheel energy storage system is an energy storage device for electromechanical energy conversion, which breaks through the limitations of chemical batteries and realizes energy storage by physical methods. Through the electric / generating reciprocal bidirectional motor, the mutual conversion and storage of electric energy and the mechanical kinetic energy of the high-speed flywheel, and through frequency modulation, rectification, constant voltage and different types of load interfaces. When storing energy, the electric energy is transformed by the power converter to d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J15/00H02J3/30
CPCH02J15/007H02J3/30Y02E60/16
Inventor 王方胜孙振江姚强王志强苏森
Owner 国网内蒙古东部电力综合能源服务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com