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An online simulation verification method for power system stability control strategy

A power system and stability control strategy introduction table technology, applied in the field of online simulation and verification of power system stability control strategy, to achieve the effects of strict specifications, fast and efficient matching analysis, and improved work efficiency

Active Publication Date: 2016-08-17
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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  • An online simulation verification method for power system stability control strategy
  • An online simulation verification method for power system stability control strategy
  • An online simulation verification method for power system stability control strategy

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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 present invention provides an online simulation verification method for a power system stability control strategy, comprising: step 1, loading power system operating data; step 2, traversing entries in the stability control strategy reference table, stability control strategy reference table and mode constraint table, The monitoring constraint table, fault constraint table, a posteriori constraint table, and the stability control action description table have index relations respectively. When traversing the entries in the stability control strategy reference table, it is judged in turn whether the operation data satisfies the mode constraints, monitoring constraints, and Fault constraints and a posteriori constraints, when it is found that the operating data meets all the constraints under a certain item, perform step 3, otherwise perform step 4; step 3, perform transient stability simulation on the corresponding stability control action under the item, if the system is stable Then it is judged that the stability control action is an appropriate stability control strategy for the power system, otherwise step 4 is performed; step 4, giving early warning information. In the comprehensive evaluation method provided by the present invention, the policy description is standardized and rigorous, and the matching analysis is fast and efficient.

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 Patents(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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