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

Hot standby line combined standby power input method based on power supply side fiber channel

An optical fiber channel, backup power technology, applied in circuit devices, AC network circuits, electrical components, etc., can solve problems such as excessive capacitive reactive power in substations and reactive power reverse transmission in power grids

Active Publication Date: 2019-06-28
STATE GRID JIANGSU ELECTRIC POWER CO ZHENJIANG POWER SUPPLY CO
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hot standby line combined with standby power supply input method based on the optical fiber channel on the power supply side, so as to solve the problems of excessive capacitive reactive power of most substations and reactive power reversed by the power grid

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
  • Hot standby line combined standby power input method based on power supply side fiber channel
  • Hot standby line combined standby power input method based on power supply side fiber channel
  • Hot standby line combined standby power input method based on power supply side fiber channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0262] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0263] Such as Figure 8 , 9 As shown, station C in the present invention satisfies the following main connection:

[0264] (1) Primary main wiring of 110kV inner bridge in 110kV substation;

[0265] (2) 110kV single busbar subsection primary main wiring in 110kV substation.

[0266] The applied power transmission and distribution network of the method of the present invention is two 110kV lines, a 220kV substation A and a 110kV substation C (see Figure 8 or Figure 9 ),details as follows:

[0267] (1) 110kV line 1 and 110kV line 2 come from 220kV substations A and B respectively; (2) 110kV line 1 is respectively connected to the 110kV busbar of 220kVA station and the I-section busbar of 110kVC station, and there are circuit breakers 4DL and current transformers on the power supply side of line 1 CT4, circuit breaker 1DL and current tran...

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 discloses a hot standby line combined standby power input method based on a power supply side fiber channel, and the method is applied to following primary wiring including the 110kV inner bridge primary main wiring of a 110kV substation and the 110kV single bus section primary main wiring of the 110kV substation. According to the invention, the problems of the over high capacitive reactive power of a substation and grid reactive reversal are solved, the voltage level of the substation is improved, the over high voltage of a local grid is prevented, and the overall operation level of a power grid is improved. The equipment loss and insulation aging are reduced, the operating efficiency of the substation main equipment is improved, the power factor of the substation is improved, and the economic efficiency of the power grid operation is improved. The occurrence of a large-scale power outage accident when a main supply line is permanently faulty is effectively avoided, theself-recovery of the power grid is achieved, and the reliability of power supply is improved. The method can be taken as a technical guarantee for the special operation mode of the power grid, the safety risk management and control under the special operation mode is greatly improved, and the safe and stable operation of the power grid is promoted.

Description

technical field [0001] The invention relates to a method for inputting a hot standby line combined with a standby power supply based on an optical fiber channel on a power supply side, and belongs to the technical field of electric power transmission and distribution control. Background technique [0002] With the promotion of urban construction and the improvement of power grid structure, the high and low voltage sides of 110kV and below substations are generally powered by cable lines, resulting in increasing capacitive reactive power. On the one hand, most urban substations lack reactors due to the long operation time and the saturated number of intervals, so they cannot absorb excess capacitive reactive power; etc. are restricted by internal and external factors and cannot operate. What is more serious is that the phenomenon of reactive power transfer in the power grid during low load periods during holidays is common, resulting in a significant decrease in power factor...

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): H02J3/16H02J3/00
CPCY02E40/30
Inventor 马骏毅任萱张大林施伟成汤大海杜炜凝马海薇李静巴宇许象明
Owner STATE GRID JIANGSU ELECTRIC POWER CO ZHENJIANG POWER SUPPLY CO
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