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Method for appraising voltage reactive configuring and running status of high-voltage electric distribution network

A voltage reactive power, operating state technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation and other directions, can solve problems such as insufficient precision and insufficient comprehensiveness

Active Publication Date: 2012-07-25
YUHANG POWER SUPPLY BUREAU +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the high-voltage distribution network, the method still has the problems of not being comprehensive enough and not fine enough

Method used

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  • Method for appraising voltage reactive configuring and running status of high-voltage electric distribution network
  • Method for appraising voltage reactive configuring and running status of high-voltage electric distribution network
  • Method for appraising voltage reactive configuring and running status of high-voltage electric distribution network

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Embodiment Construction

[0033] A method for evaluating voltage and reactive power configuration and operating status of a high-voltage distribution network. The method includes the following steps: ① Establishing an evaluation system including the evaluation index of power factor qualification rate; ② Collecting high-voltage The measured data of the distribution network; ③Use the measured data and the corresponding evaluation indicators to evaluate the voltage and reactive power configuration and operating status of the high-voltage distribution network. In the present invention:

[0034] The evaluation system of described step 1. (refer to figure 1 ), is the rated capacity S of each transformer in the whole network of the high-voltage distribution network in a typical day ij , The total capacity C of capacitive reactive power compensation configuration ij and the total capacity R of the configuration of inductive reactive power compensation ij However, its evaluation indicators also include: capa...

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Abstract

The invention provides a method for appraising the voltage reactive configuring and running status of a high-voltage electric distribution network which comprises the following steps of: (1) building an appraising system which includes an appraising index such as a power factor yield; (2) collecting each actually-measured data of the high-voltage electric distribution network according to a parameter required by the appraising index; and (3) appraising the voltage reactive configuring and running status of the high-voltage electric distribution network. The index of the appraising system in the step (1) further comprises the capacitive / inductive reactive total capacity compensation degree, the capacitive / inductive reactive total capacity load matching degree and the capacitive / inductive reactive single group configuring incorrect rate. The method has the advantage of being capable of comprehensively and precisely appraising the voltage reactive configuring and running status of the high-voltage electric distribution network, wherein an appraising result extremely has representativeness and further can be taken as the basis for planning or reforming the high-voltage electric distribution network.

Description

technical field [0001] The invention relates to an evaluation method of voltage quality and reactive power of a power system, in particular to an evaluation method of voltage and reactive power configuration and operating state of a high-voltage distribution network. Background technique [0002] The high-voltage distribution network is the link connecting the transmission network and the medium-voltage distribution network. Reasonable reactive power compensation capacity allocation and effective voltage and reactive power control measures can not only ensure the voltage quality of the high-voltage distribution network, but also improve the operating efficiency. Stability and safety, and can reduce the power loss of the power grid, improve the power transmission capacity of equipment, and give full play to the economic benefits of the operation of the high-voltage distribution network. Therefore, for the high-voltage distribution network, it is necessary to establish a set o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 杜跃明张国连刘永胜李题印徐惠平张建松
Owner YUHANG POWER SUPPLY BUREAU
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