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A power system restoration force calculation method and a system based on a black start and a load restoration process

A technology of load recovery and power grid recovery, applied in the direction of single grid parallel feeding arrangement, etc., can solve problems such as the lack of theoretical basis for power grid resilience research and the lack of guidance on the operation cornerstone of power grid system disaster prevention and mitigation planning.

Active Publication Date: 2019-01-11
STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a grid resilience calculation method based on black start and load recovery process, aiming to solve the problem that the research on grid resilience in the prior art is still in its infancy, and the evaluation theory and evaluation indicators of grid resilience are still At a low level, the research on power grid resilience lacks an important theoretical basis, and even lacks the guidance of disaster prevention and mitigation planning and operation cornerstones of the power grid system

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  • A power system restoration force calculation method and a system based on a black start and a load restoration process
  • A power system restoration force calculation method and a system based on a black start and a load restoration process
  • A power system restoration force calculation method and a system based on a black start and a load restoration process

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[0068] The present invention will be further described below in conjunction with specific examples. However, the uses and purposes of these exemplary embodiments are only used to illustrate the present invention, and do not constitute any form of limitation to the actual protection scope of the present invention, nor limit the protection scope of the present invention thereto.

[0069] figure 1 It shows the implementation flow chart of the grid resilience calculation method based on the black start and load recovery process provided by the present invention, which specifically includes the following steps:

[0070] In step S101, identify the state of the power grid system, obtain and calculate the basic data of the power grid system, and establish a network connection matrix M corresponding to the system based on the obtained basic data of the power grid system, where , the basic data includes black start unit parameters, unit parameters to be restored, line parameters and lo...

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Abstract

The invention relates to the technical field of power system restoration, and provides a power system restoration force calculation method and a system based on a black start and a load restoration process. The method comprises the following steps: identifying the state of the power system, obtaining the basic data for calculating the power system, and establishing a network connection matrix M corresponding to the system; Screening out the power plants of the available black-start units in the system, calculating the sum of the weighted capacities of all the available black-start units in each power plant and the corresponding standard values; generating a minimum spanning tree T1 containing all recoverable plant nodes, and calculating an average shortest distance D1 and an average shortest distance D2; calculating an average value D of D1 and D2; the ratio of standard value 1 to D of the weighted sum of the black-start unit capacity is calculated, which provides a quantitative methodfor evaluating and analyzing the restoring force of the power system after a large blackout accident on the basis of fully considering the black-start and load restoring process.

Description

technical field [0001] The invention belongs to the technical field of grid system recovery, and in particular relates to a grid recovery force calculation method and system based on a black start and load recovery process. Background technique [0002] The continuous progress of power grid system operation defense technology and equipment manufacturing technology cannot always keep up with the eradication of large-scale power outages. The large-scale power outages at home and abroad in the past ten years have fully demonstrated this point. For example: On August 14, 2003, the most serious power outage in North American history occurred. The power outage affected many areas in the United States and Canada, with a loss load of 61.8GW and a population of 50 million; November 2006 On the 4th, a major power outage occurred in the European interconnection grid, and Germany, France, Italy and other countries lost a total of about 16 million kW of load, and 15 million users were af...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/38
Inventor 朱海南于振江王涛王琰王娟娟宋静薛云霞房巍李宗璇刘明刘堃陈兵兵周玉宋圣兰张同军孙言实
Owner STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY
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