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Multi-dimensional transformer load capacity analysis method

A technology of load capacity and analysis method, applied in the field of transformers, can solve problems such as failure to consider other conditions of transformers, less research on environmental parameters, etc., and achieve the effect of improving the reliability of power supply

Pending Publication Date: 2021-10-01
YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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  • Abstract
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Problems solved by technology

[0004] Conventional transformer load capacity analysis mainly starts with the temperature calculation model, and analyzes the influence of hot spot temperature on it under different overload capacities, but does not consider other conditions of the transformer itself
In the existing technology, the damage of transformer coolers has been considered from multiple angles, and three kinds of cooler damages have been analyzed by using deep learning methods, but there are few studies on the factors of environmental parameters

Method used

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  • Multi-dimensional transformer load capacity analysis method

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Embodiment Construction

[0027] The technical solution in this embodiment will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some examples of the present invention, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The method for analyzing the load capacity of a multi-dimensional transformer in this embodiment takes a transformer in Kunming as an example.

[0029] 1. Overview of transformers in Kunming

[0030] As of March 2021, there are 207 units of 110kV, 56 units of 220kV, and 18 units of 500kV in Kunming. Among the transformers in operation, the largest number of transformers are concentrated between 10-15 years.

[0031] Indoor transformers are mainly concentrated in the 110kV class, and the main problem o...

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Abstract

The invention relates to a multi-dimensional transformer load capacity analysis method, which takes an oil sample index, an anti-short circuit capacity, an operation age limit, a cooler fault, indoor cooling efficiency and other defects influencing operation as dimension evaluation indexes, performs weight division according to a membership function method, and establishes a load analysis fuzzy mathematical evaluation model. The method provided by the invention can guide the formulation of the load limit of the transformer, provides a transformer overload operation strategy, and has certain reference suggestions for the operation and maintenance of the transformer.

Description

technical field [0001] The invention belongs to the field of transformers, in particular to a multi-dimensional transformer load capacity analysis method. Background technique [0002] With the economic development of urban areas, the power consumption of the power grid increases, and the load rate of some 110kV and above power transformers is relatively high. Transformers are in heavy-load operation for a long time, and even some transformers are overloaded for a short time. It is necessary to adjust the control load to ensure the safety of the transformer, but adjusting the control load may reduce the power supply reliability and other indicators. [0003] At this stage, it is impossible to completely solve the full-load or overload operation of the main transformer, which requires long-term planning and construction of the entire power grid to achieve. Therefore, it is a practical and effective solution to effectively utilize the overload capacity of the transformer wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F30/20
CPCG06Q10/06393G06Q50/06G06F30/20
Inventor 周帆代正元王朝宇韦瑞峰董伟白添凯白锦军杨超杨敏李蓉浦通鲁强浦云飞
Owner YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU