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Hierarchical abstraction and compression method for distribution network model

A compression method and distribution network technology, applied in the direction of electrical digital data processing, instruments, calculations, etc., can solve the problems of too detailed and large, unfavorable distribution network operation decision-making macro vision analysis and calculation simplification, to improve retrieval efficiency, Realize the effect of local search and tracking

Inactive Publication Date: 2015-11-04
STATE GRID CHONGQING ELECTRIC POWER +1
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Problems solved by technology

[0002] At present, from the perspective of a single data source, the distribution network model is usually provided by the geographic information system GIS, which is converted into a CIM / XML format file conforming to the IEC61970 / 61968 specification and submitted to other application systems to import into its own platform for use by the application system. The advantage is that the description granularity of this model is relatively fine, which can meet the requirements of different application systems. It is too detailed and large, which is not conducive to the establishment of a macro vision of distribution network operation decision-making and the simplification of analysis and calculation

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  • Hierarchical abstraction and compression method for distribution network model

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with drawings and embodiments.

[0033] The hierarchical abstraction and compression method of the distribution network model is to divide the abstraction of the distribution network model into four layers, including the station layer, the switch layer, the contact layer and the user layer; the user layer is used to display specific user locations, and the The switch layer is used to display the feeder segment relationship inside the feeder, and the connection layer is used to display the mutual connection relationship between the substation and the feeder and the feeder and the feeder. The station layer is directly extracted; the connection layer, the switch layer and the user The layer model is obtained according to the compression algorithm, and its compression rules are: contact layer: the feeder is the overall object, compressed to the line segment, and the contact switches between different feeder...

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Abstract

The invention discloses a hierarchical abstraction and compression method for a distribution network model. The distribution network model is abstractly divided into four layers: a plant station layer, a switch layer, a connectivity layer and a user layer, wherein the connectivity layer, the switch layer and the user layer are obtained according to a compression algorithm, the compression rule of which is as follows: the connectivity layer: a feeder line is a whole object which is compressed to a segment and connectivity switches among different feeder lines are retained; the switch layer: a transitional branch without a switch object is compressed and the tail end of a radiation pattern branch of a non-important user is compressed, and no pole and tower information is retained, and cyclic compression is carried out; and the user layer: a transitional branch without a switch object is compressed, important pole and tower information and user nodes are retained, and cyclic compression is carried out. According to the method disclosed by the invention, the topological attributes of a multi-sided hierarchical model and a GIS detailed model of the distribution network are fully consistent, thereby better blending the requirement of macro and micro decision-making views required by a power distribution operation decision on corresponding abstraction model of the distribution network.

Description

technical field [0001] The invention relates to the field of data processing in a power system, in particular to a layered abstraction and compression method for a distribution network model. Background technique [0002] At present, from the perspective of a single data source, the distribution network model is usually provided by the geographic information system GIS, which is converted into a CIM / XML format file conforming to the IEC61970 / 61968 specification and submitted to other application systems to import into its own platform for use by the application system. The advantage is that the description granularity of this model is relatively fine, which can meet the requirements of different application systems. It is too detailed and large, which is not conducive to the establishment of a macroscopic vision of distribution network operation decision-making and the simplification of analysis and calculation. Contents of the invention [0003] The purpose of the presen...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 张曦唐山黄虎黄华勇承文新李勇刚张斌孙克成
Owner STATE GRID CHONGQING ELECTRIC POWER
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