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Automatic conversion method and system of D5000-matpower power grid multi-disaster coupling cascading failure model

A technology of cascading faults and automatic conversion, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as difficult inspection, error-prone modeling, and lack of parameters, so as to avoid heavy work, improve efficiency and Credibility and efficiency-enhancing effects

Active Publication Date: 2019-11-22
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an automatic conversion method of multi-disaster coupled cascading failure models of the power grid, which is used to solve the problem of lack of required parameters in the current analysis of actual power grid data using matpower simulation, and requires experienced professionals to perform data processing and component-by-component data processing. input, and the modeling process is complex and heavy, modeling is error-prone, and errors are difficult to inspect technical problems

Method used

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  • Automatic conversion method and system of D5000-matpower power grid multi-disaster coupling cascading failure model

Examples

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Effect test

Embodiment 1

[0065] The automatic conversion method of the D5000-matpower power grid multi-disaster coupling cascading failure model of this embodiment includes the following steps:

[0066] S1: From the E format file in the D5000 system according to the first cycle; the first cycle is 5-15 minutes. From the E-format file in the D5000 system in the first cycle, the following steps are included:

[0067] Read the substation data card to obtain the collection of substations;

[0068] Read the bus data card to obtain the bus class collection;

[0069] Read the ACline data card to obtain the collection of AC lines;

[0070] Read the DCline data card to obtain the collection of DC lines;

[0071] Read the transformer data card to obtain the transformer class collection;

[0072] Read the unit data card to obtain the motor class collection;

[0073] Read the Compensator_P and Compensator_S data cards to obtain the collection of capacitors and reactors.

[0074] The above seven types of dat...

Embodiment 2

[0104] This embodiment is the automatic conversion system of the power grid multi-disaster coupling cascading failure model corresponding to Embodiment 1. The automatic conversion system of the D5000-matpower power grid multi-disaster coupling cascading failure model in this embodiment includes:

[0105] The data parameter acquisition module is used to obtain the file described in E language (electric power system data markup language) by the national grid smart grid dispatching technical support system D5000 by ftp every 5 minutes. The file should include: transformer parameters, AC transmission lines , DC transmission lines, load parameters, substations, busbars, capacitors, inductors and other parameters in the topology data of the power grid.

[0106] The data parameter acquisition module is also used to automatically call the on-site setting value collection transformer and the relay protection device setting value of the transmission line to the database every day, and ge...

Embodiment 3

[0120] The present invention also provides a computer system, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the steps in any of the above embodiments are realized.

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Abstract

The invention discloses an automatic conversion method of a D5000-matpower power grid multi-disaster coupling cascading failure model. The method comprises the steps of obtaining first data from a D5000 system; acquiring second data from a relay protection setting calculation system; converting the transformer model of the first data into a power transmission line model; taking the capacity of thetransformer in the first data as the limit current-carrying capacity of the power transmission line in the power transmission line model, and updating the limit current-carrying capacity into the first data; judging whether the element name in the second data is matched with the element name in the first data or not; selecting parameters required for describing the matpower primary model and thematpower secondary model from the first data to serve as member variables, and respectively establishing the primary model and the secondary model; and obtaining a power grid element fault set under the multi-disaster coupling condition and the probability of each fault in the set, determining parameters required for describing each fault in the power grid element fault set as member variables, and obtaining a power grid multi-disaster coupling cascading fault model. According to the invention, the model generation efficiency and the model generation accuracy are improved.

Description

technical field [0001] The invention relates to the field of power system analysis and control, in particular to an automatic conversion method and system for a D5000-matpower grid multi-disaster coupling cascading failure model. Background technique [0002] With the frequent occurrence of power grid disasters, people's requirements for power supply reliability, transient process simulation precision, and real-time performance have been continuously improved, and the demand for power grid risk analysis under multi-disaster coupling conditions has become more and more urgent. D5000 is currently widely used power grid status information collection software, which can provide real-time data for power grid risk analysis. matpower software is a widely used power grid structure planning software, which can carry out power flow analysis, transient stability calculation and other functions, and its feature is that it can customize the development function. [0003] The D5000 syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/22G06F16/901G06Q50/06
CPCG06F16/9024G06Q50/06
Inventor 陆佳政周特军吴传平谭艳军郭俊陈宝辉
Owner STATE GRID HUNAN ELECTRIC POWER
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