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Power grid operation state identification method in distribution network self-healing control

A technology of power grid operation and identification method, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of slow identification speed, one-sided consideration, low practicability, etc., and achieve the effect of enhancing accuracy

Active Publication Date: 2011-11-02
STATE GRID SHANGHAI ENERGY INTERCONNECTION RES INST CO LTD
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Problems solved by technology

[0004] The current distribution network operation state identification technology has shortcomings such as simple state classification, one-sided consideration factors, and single state evaluation model, low practicability, and slow identification speed

Method used

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  • Power grid operation state identification method in distribution network self-healing control
  • Power grid operation state identification method in distribution network self-healing control

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Embodiment Construction

[0052] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0053] In this embodiment, the steps of the method for identifying the operating state of the power grid are shown in Figure 1, specifically as follows:

[0054] (1) Collect and monitor distribution network operation information;

[0055] (2) According to the information in step (1), the grid operation status is divided and prioritized;

[0056] Divide the power grid operation state into normal state, optimization state, recovery state, risk state and emergency state, and characterize the order of state priority, wherein the emergency state is the highest level.

[0057] Normal state means that the power grid operates according to the preset operation mode, and maintains continuous power supply to all users except for planned power outages, and all items and various operating indicators are within the predetermined rang...

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Abstract

The invention discloses a power grid operation state identification method in distribution network self-healing control, comprising the steps of dividing operation states of a power grid according to power grid information and carrying out priority ordering, building an operation state assessing model at the same time, assessing the state of the present power grid operation state, obtaining a state identification result and outputting the result. In the invention, multidimensional power grid information is used, state features are utilized to identify the state of different operation states by using different identification models, the problem of defining the state boundary standard in the power grid operation state identification is solved, and the power grid operation state identification is favorably and efficiently realized. By combining with the history information and only aiming at a possible state, the assessing model is assessed, therefore, system resources are saved, fast state identification is easily realized, the assessing result is processed via regulations including the state grades, and the reliability and the safety of later self-healing control measures are enhanced.

Description

Technical field: [0001] The invention relates to the technical field of power system operation control, in particular to a method for identifying the operating state of a power grid in the self-healing control of a distribution network. Background technique: [0002] The development of smart distribution network puts forward requirements for realizing self-healing control of distribution network. On the one hand, realizing self-healing control of distribution network is a necessary condition for improving the safety and reliability of distribution network. Reduce accident losses; on the other hand, the construction of smart distribution network and the complexity of the distribution network provide an objective need for the self-healing control of the distribution network: advanced communication technology (equipment, channel, protocol) provides guarantee for real-time data transmission ;Various information systems realize multi-party sharing of data through unified data st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06F19/00
Inventor 盛万兴宋晓辉李雅洁孟晓丽李建芳张瑜贾东梨仉天舒
Owner STATE GRID SHANGHAI ENERGY INTERCONNECTION RES INST CO LTD
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