A model extraction method and system for local fault handling process of active distribution network
A technology of active distribution network and processing process, applied in the direction of electrical components, emergency protection circuit devices, etc., can solve problems such as unsuitable distribution network
Active Publication Date: 2020-03-20
NR ELECTRIC CO LTD +1
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Problems solved by technology
[0006] Facing the above technical problems, the present invention aims at the problem that the existing transmission network fault handling process replay model recording method is not applicable to the distribution network, and proposes a model extraction technology for the active distribution network in-situ fault handling process replay
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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.
[0051] Such as figure 1 As shown, a model extraction method for in-situ fault handling process replay of active distribution network, including steps:
[0052] S100: After dividing the distribution network into multiple feeder sets, acquire or mark their relevant information.
[0053] There are many feeders in the distribution network, some of which are electrically connected, and an electrical island can be formed by closing all switch switches. There is no electrical relationship between the feeders of different electrical islands, and there will be no electrical influence on each other when the distribution n...
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The invention relates to a model extraction method and system applied to the on-site fault processing process of an active distribution network. The distribution network is divided into a plurality offeeder sets by using a model extraction technology applied to on-site fault processing process recapitulation of an active distribution network; when the distribution network breaks down, feeder graphs of feeders in the feeder set in which the faulty feeder is located are extracted and saved as a faulty feeder graph set; a set of key equipment related with the on-site fault processing process recapitulation is extracted from the saved faulty feeder graph set; electrical quantity measurement information of the equipment related with the on-site fault processing process recapitulation is extracted; alarm information generated in the on-site fault processing process is extracted; and finally the on-site fault processing process recapitulation of the active distribution network can be realized according to a fault processing process recapitulation model formed by the various extracted information. Only the distributed network fault model related information associated with the on-site fault processing is stored by using the model extraction technology of the invention, so that the model record storage space required by the on-site fault processing process recapitulation can be effectively reduced.
Description
technical field [0001] The invention relates to the field of replaying of fault handling process of distribution network, in particular to a model extraction technology for replaying of on-site fault handling process of active distribution network. Background technique [0002] The active distribution network is a public distribution network with a flexible topology that actively manages distributed power sources, energy storage devices, and bidirectional load customers. Distribution network fault handling is the process of fault detection, fault location, fault isolation and recovery of power-off loads when a fault occurs in the distribution network. [0003] Distribution network fault processing technology is mainly divided into two categories, one is local fault processing, and the other is centralized control fault processing. On-site fault handling refers to only relying on the protection measurement equipment, according to the local voltage, current, power grid topolo...
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IPC IPC(8): H02H7/26
CPCH02H7/26
Inventor 赵月辉陈根军徐晓亮毛建维邹大云张孝
Owner NR ELECTRIC CO LTD