Intelligent alarming method for grid

A smart alarm and power grid technology, applied to alarms, electrical components, circuit devices, etc., can solve problems such as calculation speed constraints

Active Publication Date: 2010-02-17
广东立胜综合能源服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the power system node voltage vector observer, the method of screening power grid alarms through machine learning, but the research found that in the context of large-scale power grids, this type of method is restricted by the calculation speed

Method used

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  • Intelligent alarming method for grid
  • Intelligent alarming method for grid
  • Intelligent alarming method for grid

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Embodiment Construction

[0019] The present invention will be further described according to the accompanying drawings and embodiments, and the purpose and effect of the present invention will become more obvious.

[0020] The grid intelligent alarm method of the present invention comprises the following steps:

[0021] (5) Fault simulation and sample selection. Simulate the faults that may occur in the power grid, and record the node voltage vector at the time of the fault to form a sample set T = { ( V ‾ 11 , y 1 ) . . . ( V ‾ 1 l 1 , y 1 ) ...

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Abstract

The invention discloses an intelligent alarming method for a grid. On the basis of a PMU point arrangement optimization, a grid observer based on a bus-bar node voltage is constructed to enable a failure and a node voltage to correspond to each other, and a decision tree and an algorithm supporting the cooperation of a vector machine are used for giving an alarm for a grid failure. The method utilizes the decision tree to reduce the classifying combination number and constructs a classifying performance value to represent the divisibility of each type; furthermore, the PMU point arrangement optimization is introduced to reduce the dimension number of the observer and greatly improve the judging speed and meet the real-time requirements of the failure alarm.

Description

technical field [0001] The invention relates to the field of power grid dispatching and fault analysis, in particular to an intelligent alarm method for a power grid. Background technique [0002] When a fault occurs in the power system, the control center receives a large number of alarm information, and it is difficult for the dispatcher to make an effective judgment in a short time, which may easily lead to the expansion of the fault. After the "8.14" blackout in the United States and Canada, system operators became more aware of the importance of a fast, accurate and intelligent alarm system to ensure the safe operation of the power grid. The power system node voltage vector observer is used to screen power grid alarms through machine learning, but the research finds that in the context of large-scale power grids, this type of method is restricted by the calculation speed. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06N1/00G08B31/00
CPCY02E60/728Y04S10/265Y04S10/54Y02E40/70Y02E60/00Y04S10/00Y04S10/22
Inventor 郭创新马韬韬朱少华彭明伟王晓娇
Owner 广东立胜综合能源服务有限公司
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