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

Control method and system for avoiding large-area blackout after local power network splitting

A local power grid and control method technology, applied in the electric power field, can solve problems such as inability to realize local power grid stability control, start-up blind zone, etc.

Active Publication Date: 2017-03-15
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a control method and system for avoiding large-scale power outages after partial power grid decoupling, which solves the technology that the FCB of the traditional unit thermal power unit has a start-up blind area, which leads to the inability to realize the stable control of the local power grid after decoupling question

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
  • Control method and system for avoiding large-area blackout after local power network splitting
  • Control method and system for avoiding large-area blackout after local power network splitting
  • Control method and system for avoiding large-area blackout after local power network splitting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The embodiment of the present invention provides a control method and system for avoiding large-scale power outages after the partial power grid is separated, and solves the technology that the FCB of the traditional unit thermal power unit has a start-up blind area, which leads to the inability to realize the stable control after the partial power grid is separated. question.

[0036] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to ...

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 embodiment of the invention discloses a control method and system for avoiding large-area blackout after local power network splitting, and aims at solving the technical problem that stability control after local power network splitting cannot be achieved due to the fact that a start-up dead zone exists in FCB of a traditional unit thermal power unit. The method disclosed by the embodiment of the invention comprises the steps of obtaining a fault instruction that a tie line of a regional power network and a main network is broken; carrying out splitting of the regional power network and an external power network through a preset splitting point according to the fault instruction and concertedly starting a first FCB strategy function corresponding to a unit in the split regional power network in the distance through first-level control; and if the FCB strategy function corresponding to the unit in the split regional power network is not concertedly started in the distance by the first-level control or splitting of the regional power network and the external power network cannot be carried out through the preset splitting point, splitting and starting a second FCB strategy function of a local unit in the regional power network through second-level control.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a control method and system for avoiding large-area power outages after partial power grids are disconnected. Background technique [0002] The continuous expansion of the scale of the modern interconnected grid greatly improves the performance of the power system and meets the rapid development of the national economy. At the same time, due to the expansion of power supply scale, the loss caused by grid failure will be even greater. The power system is recognized as the most complex man-made system. As a network structure, local faults may induce chain reactions, leading to large-scale blackouts and even the collapse of the entire power grid. How to minimize the scope of power outages and reduce the scale of power outages after a serious power grid failure is a thorny problem faced by the dispatching and operation of modern complex large power grids. At present, the rel...

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): H02J3/00
CPCH02J3/00H02J3/001
Inventor 曾凯文刘嘉宁陈钢
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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