Method for modeling overload performance evaluation model of transformer in consideration of multi-factor

A modeling method and technology for evaluating models, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve problems such as lack of solutions, inability to comprehensively and accurately evaluate load performance, etc., and achieve high practicability and accuracy. Can enhance the effect of comprehensive constraints

Inactive Publication Date: 2017-07-07
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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Problems solved by technology

However, hot spot temperature or top oil temperature modeling cannot fully and accurately evaluate overload performance
[000...

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  • Method for modeling overload performance evaluation model of transformer in consideration of multi-factor
  • Method for modeling overload performance evaluation model of transformer in consideration of multi-factor
  • Method for modeling overload performance evaluation model of transformer in consideration of multi-factor

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[0055] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0056] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0057] As introduced in the background technology, there is a deficiency in the prior art that the transformer o...

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Abstract

The invention discloses a method for modeling an overload performance evaluation model of a transformer in consideration of multi-factor, comprising the following steps of collecting data based on a scheduling operation and production management information platform; establishing a model based on a multi-factor index; evaluating the performance of the model; utilizing a small value K between a determined maximum load rate K1 and a determined maximum load rate K2, and inputting K as an independent variable into economic loss and economic income formulae in an economic profit and loss model to realize overload performance evaluation of the transformer from the angle of economic profit and loss. The model established by the invention comprehensively considers the multi-factors, which influence the overload performance of the transformer, such as hot-spot temperature limitation, failure rate limitation and economic profit and loss indexes; and compared with an existing overload evaluation model, the constraint conditions are comprehensive. Compared with a traditional heat conduction model, the precision for evaluating the hot-spot temperature aspect of the transformer can be effectively improved in the improved hot-spot temperature model.

Description

technical field [0001] The invention relates to the technical field of transformer operation reliability modeling, in particular to a modeling method for a transformer overload performance evaluation model considering multiple factors. Background technique [0002] With the rapid development of social economy, urban and rural electricity loads have been rising, and the situation of power supply is becoming increasingly severe. In view of the cost of power grid construction land, the pressure of equipment costs, and the lag of grid planning, power transmission and transformation equipment will perform appropriate overload operation on the premise of ensuring the safety and stability of the system. [0003] At present, there have been a large number of studies on the overload performance of transmission lines. However, because the oil-immersed transformer is not greatly affected by environmental factors, and the accessories considered are more complicated, there are few exist...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 白万建韩克存吴强陈玉峰郭志红杨祎杜修明郭创新于立涛王大鹏周加斌朱孟兆夏伊乔田大伟
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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