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Transformer overload calculation method and system and terminal equipment

A calculation method and transformer technology, applied in the field of transformers to reduce participation, reduce personnel input costs, and improve work efficiency

Active Publication Date: 2018-10-19
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a transformer overload calculation method, system and terminal equipment to solve the problem of calculating the transformer overload limit time in transient changes in the prior art

Method used

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  • Transformer overload calculation method and system and terminal equipment
  • Transformer overload calculation method and system and terminal equipment
  • Transformer overload calculation method and system and terminal equipment

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Experimental program
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Effect test

Embodiment 1

[0034] figure 1 It shows the implementation flow of a transformer overload calculation method provided by an embodiment of the present invention. The execution subject of the flow in this embodiment may be a terminal device, and the process is described in detail as follows:

[0035] In step S101, the basic parameter information of the transformer is obtained, and the basic parameter information includes rated load current and temperature rise experimental parameters.

[0036] In this embodiment, firstly, the basic parameter information of the transformer needs to be obtained, the basic parameter information includes the rated load current and the temperature rise experimental parameters, and the temperature rise experimental parameters include the top layer oil temperature limit and the hot spot temperature limit.

[0037] In this embodiment, the basic parameter information further includes transformer structural parameters, and the transformer structural parameters are used ...

Embodiment 2

[0110] Such as Figure 5 As shown, an embodiment of the present invention provides a transformer overload calculation system 1000 for performing figure 1 The method step in the corresponding embodiment, it comprises:

[0111] The basic parameter information acquisition module 1010 is used to acquire the basic parameter information of the transformer, and the basic parameter information includes rated load current and temperature rise experimental parameters;

[0112] The current transient load capacity acquisition module 1020, configured to acquire the current transient load capacity of the transformer;

[0113] The temperature setting module 1030 is used to set the overload temperature limit value and the ambient temperature initialization value of the transformer;

[0114] A cooling efficiency acquisition module 1040, configured to acquire the cooling efficiency of the transformer;

[0115] An overload thermal limit time calculation module 1050, configured to calculate ba...

Embodiment 3

[0147]The embodiment of the present invention also provides a terminal device 9, including a memory 91, a processor 90, and a computer program 92 stored in the memory 91 and operable on the processor 90, and the processor 90 executes the computer program 92 When realizing the steps in each embodiment as described in embodiment 1, for example figure 1 Step S101 to step S105 are shown. Alternatively, when the processor 90 executes the computer program 92, it realizes the functions of each module in each device embodiment as described in Embodiment 2, for example Figure 5 The functions of modules 1010 to 1050 are shown.

[0148] The terminal device may be computing devices such as desktop computers, notebooks, palmtop computers, and cloud servers. The terminal device may include, but not limited to, a processor 90 and a memory 91 . For example, the terminal device may also include an input and output device, a network access device, a bus, and the like.

[0149] The processo...

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Abstract

The invention is suitable for the technical field of transformers, and provides a transformer overload calculation method and system and terminal equipment. The method includes the following steps: obtaining basic parameter information of a transformer; obtaining current transient load capacity of the transformer; setting an overload temperature limit value and an environment temperature initialization value of the transformer; obtaining cooling efficiency of the transformer; and calculating overload thermal limit time of the transformer based on the basic parameter information, the current transient load capacity, the cooling efficiency, the overload temperature limit value, the environment temperature initialization value and preset target load capacity. According to the embodiments of the invention, the dynamic overload capacity of the transformer is calculated in real time by obtaining the current transient load capacity, and so the calculation problem of the overload thermal limittime of the transformer in transient changes is solved. Therefore, the participation of power grid dispatchers is reduced, personnel input cost is reduced, and the work efficiency of the transformeris improved.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to a transformer overload calculation method, system and terminal equipment. Background technique [0002] The transformer overload calculation method is mainly based on the limit value of the top layer oil temperature of the transformer and the winding temperature as the limiting conditions, according to the GB / T1094.7--2008 power transformer Part VII "Oil-immersed Power Transformer Load Guidelines" in the steady state The temperature rise (hot spot temperature temperature rise and top layer oil temperature rise) calculation method establishes an overload calculation model, calculates the overload thermal limit time of the transformer, and reflects the actual operating state of the transformer. There are also some substations that mainly use the overload curve of the transformer as a reference to guide the actual load of the transformer. [0003] Transformer overl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 高树国贾伯岩刘宏亮王丽丽孟令明高骏
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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