Full voltage sequence integrated power grid reliability and risk evaluation method

A risk assessment and reliability technology, applied in the direction of instruments, data processing applications, information technology support systems, etc., can solve problems such as the reliability and risk assessment of the full-voltage sequence integrated power grid, avoid inaccurate assessment results, improve Accuracy and real-time performance

Inactive Publication Date: 2017-02-22
STATE GRID FUJIAN ELECTRIC POWER RES INST +5
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Problems solved by technology

[0005] The purpose of the present invention is to provide a reliability and risk assessment method for the full voltage sequence integrated power grid in order to solve the reliability and risk assessment problem of the full voltage sequence integrated power grid in the prior art, which can realize the full voltage sequence level of the power system Grid reliability and risk assessment to improve power system reliability

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  • Full voltage sequence integrated power grid reliability and risk evaluation method

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Embodiment 1

[0036] An embodiment of the present invention, its steps are as figure 1 Shown:

[0037] figure 1 Step 1 in the above description is to integrate the data of the whole network according to the operation information of the transmission network, external environment information and equipment parameters, and generate reasonable and usable real-time operation mode data for online evaluation of the power grid.

[0038] Specifically, for multi-time scale transmission network operation information, external environmental information and equipment parameters, the whole network data integration is carried out to generate reasonable and available real-time operation mode data for online evaluation of the power grid, which avoids the operation mode obtained by the traditional sampling method. The disadvantage of large deviation from the actual way of the grid. Therefore, information interaction with external systems is required, mainly including: EMS system, new energy monitoring system,...

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Abstract

The invention disclose a full voltage sequence integrated power grid reliability and risk evaluation method, belonging to the technical field of power system reliability analysis. Based on the real-time data calculation of the power grid and depending on the advantage of online safety and stability analysis and calculation, the method provided has the advantages of reliable calculation result and quick calculation speed and effectively reduces the problems of large data bulk and long time consumption of calculation caused by the random simulation of a conventional sampling algorithm. Through the information exchange between the transmission and distribution network reliability evaluation systems, the integrated evaluation of the full voltage sequence power grid can be carried out, and thus greatly improving the accuracy of the power grid evaluation, and overcoming the defects of inaccurate evaluation result and repeated evaluation due to the isolation of power grids in different voltage grades; the risk evaluation and prevention and control decisions of the real-time operation of the power grid take into account the power generation / load reduction cost, so that the balance of the reliability and economy of the real-time operation of the power grid can be solved. The method greatly promotes the engineering application of the large power grid in the reliability evaluation and management technology.

Description

technical field [0001] The invention belongs to the technical field of power system reliability analysis, and in particular the invention relates to an evaluation and management method of power grid operation reliability. Background technique [0002] With the rapid development of the economy, the scale of the power grid is getting larger and its structure is becoming more and more complex, and the system is constantly developing towards ultra-high voltage, long-distance and large-capacity. In recent years, my country has initially formed a UHV AC-DC and multi-DC hybrid pattern. In the future, the UHV AC-DC, multi-DC long-distance, and large-capacity transmission pattern will be further enhanced. The interaction between them is more prominent. [0003] Power system reliability assessment runs through the entire process of power system planning, design, and operation. Due to the large number of power system equipment and large scale, current reliability research is mainly car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/06
CPCG06Q10/0639G06Q50/06Y04S10/50
Inventor 张恒黄霆刘韶峰李碧君刘强徐泰山黄道姗苏清梅赵红明黄晓红王丽贾爱飞魏旭锋
Owner STATE GRID FUJIAN ELECTRIC POWER RES INST
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