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Large power grid running risk evaluation system

A technology for operating risk and evaluating systems, applied in information technology support systems, instruments, data processing applications, etc., and can solve problems such as insufficient system reliability levels

Inactive Publication Date: 2015-05-13
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] These severe outages have prompted a realization that the N-1 principle (single element failure criterion) that the power industry has adopted for many years is no longer sufficient to maintain a reasonable level of system reliability

Method used

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Embodiment Construction

[0036] In order to describe the present invention more conveniently, the method described in the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] The overall structure diagram of a large power grid operation risk assessment system is as follows: figure 1 As shown, the specific steps mainly include:

[0038] The first step is to build the input data module;

[0039] The data exported from SCADA system, EMS system, PMS system, and MIS system are processed through excel. The EMS system data includes the grid model, equipment parameters, real-time data, and historical data of the high-voltage distribution network (above 10kV). The PMS data of the production management system includes account information of low-voltage distribution network equipment, planned maintenance information of distribution network equipment, and planned power outage information. Management information system MIS includes o...

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Abstract

A large power grid running risk evaluation system comprises the detailed steps as follows: firstly, building a data input module, processing data exported from a SCAD system, a EMS system, a PMS system and a MIS system with excel, and building a large power grid running risk input database; secondly, determining evaluated objects, wherein the evaluated objects of the large power grid running risk evaluation system are equipment running risk, transformer substation running risk and power rid running risk; further, calculating risk indexes, selecting a different risk evaluation index to calculate the large power grid running risk according to a different evaluated object; finally, outputting the result, outputting risks of on the three aspects of the equipment, the transformer substation and the power grid by means of charts. In the large power grid running risk evaluation system, the indexes on the three aspects of the equipment, the transformer substation and the power grid are of great significance for comprehensively evaluating the large power grid running risk, comprehensively controlling the running status of the large power grid, and ensuring the stable running of the large power grid.

Description

technical field [0001] The invention belongs to the field of large power grid operation risk assessment, and in particular relates to a large power grid operation risk assessment system. Background technique [0002] With the continuous improvement of people's living standards, people's demand for and dependence on electricity is increasing, and the requirements for safe and stable power supply are also increasing; on the other hand, UHV, AC and DC long-distance transmission and various new The wide application of control devices makes the scale of the system larger and larger, and the operation of the power grid becomes increasingly complex. [0003] In recent years, there have been frequent large-scale power outages at home and abroad. For example, in August 2003, a large-scale power outage occurred in the US-Canada grid, which affected the power supply range of more than 50 million people and became the largest power outage in the history of the United States; September 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06Y04S10/50
Inventor 张忠会谢义苗王卉刘故帅
Owner NANCHANG UNIV