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Online safety precaution and prevention control method of power distribution network

A technology of preventive control and safety early warning, applied in the direction of electrical components, circuit devices, etc., can solve the problems such as the invention does not clearly propose preventive control, the distribution network is few, and the energy saving measures for the distribution network are not clearly proposed.

Active Publication Date: 2014-08-06
HUNAN UNIV +2
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Problems solved by technology

[0005] However, the existing technologies are mainly aimed at the research on safety early warning and preventive control of the transmission network, but less for the distribution network, and the existing inventions do not clearly propose preventive control measures
In addition, the existing inventions have not clearly proposed energy-saving measures for the distribution network

Method used

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  • Online safety precaution and prevention control method of power distribution network
  • Online safety precaution and prevention control method of power distribution network
  • Online safety precaution and prevention control method of power distribution network

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Embodiment Construction

[0099] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0100] The distribution network is large in scale and numerous in equipment, and the topology is generally "closed loop design, open loop operation". Aiming at this feature, the concept of feeder group is proposed. A feeder group refers to a combination of feeder connections that are physically connected between several feeders and can be transferred to each other through a connection switch. If it is a radial feeder, it is considered A single feeder is a feeder group. The feeder group is the smallest module with online safety early warning and preventive control capabilities. In order to increase the speed of calculation and analysis, the online safety early warning and preventive control of the present invention uses the feeder group as the smallest unit, evaluates the operating status of each feeder group...

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Abstract

The invention relates to an online safety precaution and prevention control method of a power distribution network. The online safety precaution and prevention control method comprises the steps of perceiving the running state of the power distribution network, and acquiring data of the power distribution network; calculating a precaution index or a power-losing grade index of the power distribution network according to the acquired data of the power distribution network; dividing the running state of the power distribution network according to the precaution index or the power-losing grade index; and carrying out prevention control on the power distribution network in an alert state. Therefore, the power distribution network can autonomously carry out safety precaution and prevention control; self-healing control of the power distribution network is realized; meanwhile, faults of the power distribution network can be avoided as many as possible, and energy is saved in the running process of the power distribution network.

Description

Technical field [0001] The invention relates to the technical field of automatic control of electric power systems, in particular to an online safety early warning and preventive control method of a distribution network. Background technique [0002] The development of intelligent distribution network puts forward requirements for the realization of online safety early warning and preventive control of distribution network. On the one hand, the realization of online safety early warning and preventive control of the distribution network is a necessary condition for improving the safety and reliability of the distribution network. The painful lessons of major grid accidents at home and abroad show that the construction of a distribution network that can automatically realize online safety early warning and preventive control It helps the distribution network to quickly recover from faults and effectively reduce accident losses; on the other hand, the construction of smart distribu...

Claims

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Application Information

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IPC IPC(8): H02J13/00
Inventor 汪沨陈春曹一家刘蓓董旭柱黄小耘许爱东于力雷金勇彭飞进
Owner HUNAN UNIV
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