Method and system for state evaluation of distribution transformer low-voltage reactive power compensation equipment

A technology for compensation equipment and distribution transformers, which is applied in the directions of reactive power compensation, reactive power adjustment/elimination/compensation, etc., which can solve the problems of evaluating the operating status of low-voltage reactive power compensation equipment of distribution transformers, inability to fine-tune the reactive power operation status of distribution transformers, Problems such as voltage cannot be traced to achieve the effect of detailed evaluation

Active Publication Date: 2016-03-02
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 state evaluation of distribution transformer low-voltage reactive power compensation equipment
  • Method and system for state evaluation of distribution transformer low-voltage reactive power compensation equipment
  • Method and system for state evaluation of distribution transformer low-voltage reactive power compensation equipment

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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts 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 status of distribution transformer low-voltage reactive power compensation equipment. The distribution transformer low-voltage reactive power compensation equipment includes: Said method comprises steps:

[0039] S11. Obtain the model data of the low-voltage reactive power compensation cabinet of the distribution transformer, the model data of the co...

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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 specifically, relates to a method and system for state evaluation of distribution transformer low-voltage reactive power compensation equipment. Background technique [0002] The distribution network has many points and wide areas, the power supply radius is long, and the power grid loss is relatively large. It is one of the most effective technical measures to reduce the network loss of the distribution network and improve its power quality by installing reactive power compensation equipment on the low-voltage side of the 10kV feeder distribution transformer in the distribution network for reactive power compensation to realize the reactive power balance of the distribution network. The operating state information of the low-voltage reactive power compensation equipment of the distribution transformer directly reflects the operating state of the low-volta...

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Application Information

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Patent Type & Authority Patents(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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