Electric power system stability control strategy on-line simulation calibration method

A power system and stability control strategy indexing technology, applied in the field of power system stability control strategy online simulation verification, achieves the effects of strict specification, fast and efficient matching analysis, and improved work efficiency

Active Publication Date: 2014-02-12
STATE GRID CORP OF CHINA +1
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Problems solved by technology

It is difficult to fundamentally solve the problem of stable operation of the system only through the construction of the power grid, the increase of reserve capacity and the investment of new devices

Method used

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  • Electric power system stability control strategy on-line simulation calibration method
  • Electric power system stability control strategy on-line simulation calibration method
  • Electric power system stability control strategy on-line simulation calibration method

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Embodiment 1

[0062] Based on the stability control strategy of Hubei power grid and online calculation data, the validity of the method in this paper is verified. On that day, North China-Central China was in a networked operation state, so the online calculation data included the national power grid direct adjustment and all power grid equipment above 220kV in North China and Central China. Taking Article 18 of Hubei’s stability control strategy in Northwest Hubei (Danjiang power plant’s external transmission stability control strategy) as an example, the strategy includes two items, 130001 and 130002, and the matching results are as follows.

[0063] Table 11: Result display table for the embodiment run by entry 130001

[0064]

[0065]

[0066] Table 12: Result display table for the embodiment run by entry 130001

[0067]

[0068] It can be seen that the four types of constraint conditions of entry 130002 are all satisfied, and the matching is successful, and the stability con...

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Abstract

The invention provides an electric power system stability control strategy on-line simulation calibration method. The method comprises the steps that step 1, electric power system operation data are loaded; step 2, traversal is conducted on items of a stability control strategy index table, and the stability control strategy index table respectively has indexing relationship with a mode constraining table, a monitoring constraining table, a fault constraining table, a posterior constraining table and a stability control describing table; when the items of the stability control strategy index table are traversed, whether operation data meet the mode constraining, the monitoring constraining, the fault constraining and the posterior constraining of one item is sequentially judged, if yes, step 3 is executed; if not, step 4 is conducted; step 3, transient stability simulation is conducted on a stability control action corresponding to the item, if the system is stable, the stability control action is judged to be the stability control strategy suitable for an electric power system, otherwise the step 4 is executed; step 4, pre-warning information is given. The electric power system stability control strategy on-line simulation calibration method used as a comprehensive assessment method is standard and precise in strategy description, and is rapid and efficient in matching analysis.

Description

technical field [0001] The invention relates to the field of power system monitoring, in particular to an online simulation verification method for a power system stability control strategy. Background technique [0002] In recent years, with the rapid development of my country's economy, the demand for electricity has been increasing and the dependence on reliable power supply has become higher and higher. It is difficult to fundamentally solve the problem of stable operation of the system only through the construction of the power grid, the increase of reserve capacity, and the investment of new devices. Therefore, objectively analyze the security situation and existing problems of my country's power grid, and under the new environment of cross-regional power grid interconnection and power market reform, research uses online operation data to scan various faults in the grid's offline strategy table and correct them in time. The nuclear safety and stability control strategy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 史东宇丁平李刚吕颖鲁广明谢梅严剑峰于之虹江兴凌邱健蔡顺友
Owner STATE GRID CORP OF CHINA
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