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Method and system for evaluating state of distribution transform low-voltage reactive-load compensation equipment

A technology for compensation equipment and state assessment, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc. Problems such as voltage cannot be tracked to achieve the effect of refined evaluation

Active Publication Date: 2014-04-23
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, the second type of index system can only be evaluated for the entire network, and cannot be refined to the voltage and reactive power operation status of the distribution transformer and the reactive power compensation equipment on the low-voltage side of the distribution transformer. Unable to trace the cause of voltage and reactive power problems

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  • Method and system for evaluating state of distribution transform low-voltage reactive-load compensation equipment
  • Method and system for evaluating state of distribution transform low-voltage reactive-load compensation equipment
  • Method and system for evaluating state of distribution transform low-voltage reactive-load compensation equipment

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] see figure 1 The embodiment of the present invention discloses a flow chart of a method for evaluating the state of low-voltage reactive power compensation equipment for distribution transformers. The method includes the steps:

[0039] S11. Obtain model data of the distribution transformer low-voltage reactive power compensation cabinet, model data of the common compensation capacitor, and model data of the divided compensati...

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Abstract

The invention provides a method and system for evaluating the state of distribution transform low-voltage reactive-load compensation equipment. By obtaining operation state data of a distribution transform low-voltage reactive-load compensation cabinet, a joint compensation capacitor and a separating compensation capacitor in the distribution transform low-voltage reactive-load compensation equipment, and combining model data of the distribution transform low-voltage reactive-load compensation cabinet, the joint compensation capacitor and the separating compensation capacitor, respective evaluation of the distribution transform low-voltage reactive-load compensation cabinet, the joint compensation capacitor and the separating compensation capacitor is realized, namely the detail evaluation of the distribution transform low-voltage reactive-load compensation equipment is realized, so that roots of problems of reactive-load under compensation, reactive-load uneven distribution, high loss, low voltage of distribution network feeder lines can be accurately found out according to concrete evaluation indexes of the distribution transform low-voltage reactive-load compensation equipment.

Description

technical field [0001] The invention relates to the technical field of distribution network operation analysis, and more particularly, to a method and system for evaluating the state of low-voltage reactive power compensation equipment in distribution transformers. Background technique [0002] The distribution network is multi-faceted and wide, the power supply radius is long, and the power grid loss is large. It is one of the most effective technical measures to reduce the network loss and improve the power quality of the distribution network by installing reactive power compensation equipment on the low-voltage side of the distribution network 10kV feeder distribution transformer to realize the reactive power balance of the distribution network. The operating status information of the distribution transformer low-voltage reactive power compensation equipment directly reflects the operating status of the distribution transformer low-voltage reactive power compensation equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 陈小飞沈海江寿冀超吴国权冯兴隆汤霄王虎宋璐罗海峰
Owner STATE GRID CORP OF CHINA
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