Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Parallel power supplying method of electrolytic aluminum different-power-supply-point direct-current sides

A power supply method, electrolytic aluminum technology, applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., can solve the problems of poor self-stress adjustment ability, power supply system dependence on large power grids, etc., to reduce overshoot and reduce cross-network the risk, the effect of avoiding the impact

Inactive Publication Date: 2015-08-12
JIUQUAN IRON & STEEL GRP
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a parallel power supply method on the DC side of different power points of electrolytic aluminum, which has solved the problem in the prior art that the power supply system of electrolytic aluminum enterprises is too dependent on the large power grid and has poor self-stress adjustment ability

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
  • Parallel power supplying method of electrolytic aluminum different-power-supply-point direct-current sides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] A parallel power supply method for DC sides of different power supply points of electrolytic aluminum, which is used for conversion between public power grids and autonomous power grids. The public power grid is connected to the independent power grid with an AC power supply bus, and a segmental transfer switch is installed on the AC power supply bus, and a rectifier unit is installed between the AC power supply bus and the electrolytic aluminum DC bus. There is a switching station between the autonomous power grid and the AC power supply busbar. A substation is provided at the connection end between the switch station and the AC power supply busbar.

[0016] When the power grid is working normally, the sub-section transfer switch is in the off state, and the electrolytic aluminum operation mainly relies on the power supply of the independent power grid. When ...

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 provides a parallel power supplying method of electrolytic aluminum different-power-supply-point direct-current sides, and belongs to the technical field of electric power system operation and control. The method is used for convention between a public power grid and an autonomous power grid. The public power grid and the autonomous power grid are connected with different alternating-current power supplying buses. The different alternating-current power supplying buses are provided with sectionalized change-over switches. Rectification units are arranged between the different alternating-current power supplying buses and an electrolytic aluminum direct-current bus. Switch stations are arranged between the autonomous power grid and the alternating-current power supplying buses. Power substations are arranged on the connecting ends between the switch station and the alternating-current power supplying buses.

Description

technical field [0001] The invention belongs to the technical field of power system operation and control, and in particular relates to a parallel power supply method at DC sides of different power supply points of electrolytic aluminum. Background technique [0002] At present, grid-connected power plants of domestic enterprises are affected by factors such as grid access, environmental protection audits, and power supply approval policies, and cannot be put into operation on schedule. In order to ensure that electrolytic aluminum is put into production on schedule, the power grid supporting electrolytic aluminum must be operated in two ways: "AC off-grid, DC grid-connected" and "AC standby" to realize the industrial adjustment of "coal-electricity-aluminum integration". The current common electrolytic aluminum production system corresponds to the 330kV power distribution device, and adopts a double-busbar connection system. The incoming lines of the busbars in sections I a...

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): H02J9/06H02J3/46C25C3/16
Inventor 丁宝忠刘建平朱凯伍光慰邹晓东
Owner JIUQUAN IRON & STEEL GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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