Risk evaluation method for operation of large power grid

A technology of operating risk and large power grid, applied in the direction of instrument, data processing application, calculation, etc., can solve the problems of lack of risk assessment tools, omissions, and low work efficiency in dispatch agencies

Inactive Publication Date: 2014-03-12
CHINA SOUTHERN POWER GRID COMPANY
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Problems solved by technology

[0004] However, at present, dispatching agencies lack mature and convenient risk assessment tools. When performing risk assessment, operators first use traditional power system security and stability calculation software to conduct static and dynamic security analysis of the power grid, and calculate the security and stability of the power grid after a fa...

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  • Risk evaluation method for operation of large power grid
  • Risk evaluation method for operation of large power grid
  • Risk evaluation method for operation of large power grid

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Embodiment Construction

[0032] The following is an embodiment of the present invention, and the characteristics, objects and advantages of the present invention can be seen from the description and drawings of the embodiment. In the embodiment, using the technology of the present invention, a risk assessment method for power grid operation is specifically described. The large power grid operation risk assessment method of the present invention includes the following steps:

[0033] 1) Fault and risk factor statistics;

[0034] 2) Risk probability calculation;

[0035] 3) Risk quantitative assessment based on load loss;

[0036] 4) Hierarchy of risk indicators and result evaluation.

[0037] In step 1) above, figure 1 The risk assessment process of the present invention is demonstrated: enumerating emergency events, calculating event risks, performing system evaluation, and analyzing and displaying results. The invention reads the original data and calculation results of the power flow of the sys...

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Abstract

The invention belongs to a risk evaluation method for the operation of a large power grid. The method comprises the following steps of (1) statistics of fault and risk factors; (2) computation of risk probability; (3) risk quantitative evaluation based on the load loss; (4) classification and result evaluation on risk index. According to the risk evaluation method for the operation of the large power grid, the occurring probability of power system accidents and the number of load loss of the system are combined to form a new quantitative index, so a scheduling person can be helped to perform real-time risk evaluation and analysis, can further comprehensively master the safe operation condition of the power grid, and controls the risk level of the system within a reasonable range by adopting necessary measures, and the occurrence of the disaster fault is avoided. The real-time evaluation and management and control on the risk are realized by a power gird scheduling center and the method belongs to a load loss-based risk evaluation method for the operation of the large power grid.

Description

technical field [0001] The invention is a method for assessing the operation risk of a large power grid, which belongs to the transformation technology of the method for evaluating the risk of operation of the large power grid. Background technique [0002] The safe operation of the power system is an important guarantee for the healthy development of the social economy. The power system dispatching center needs to make full use of power generation equipment and adjustment methods to provide qualified electric energy to users to ensure system security and smooth operation of the power grid. At present, power system EMS generally adopts a deterministic analysis framework, but this method is difficult to remember the randomness of power system faults, is too conservative, and lacks economy. With the release of the Chinese government's "Regulations on Emergency Response and Investigation and Handling of Electric Power Safety Accidents" (Decree No. 599 of the State Council), po...

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Application Information

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IPC IPC(8): G06Q50/06
Inventor 汪际锋李建设荆朝阳吴小辰黄河苏寅生荆大方马骞刘杰姚海成
Owner CHINA SOUTHERN POWER GRID COMPANY
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