Unlock instant, AI-driven research and patent intelligence for your innovation.

Main transformer section switching method and device of transformer substation

A switching device and substation technology, applied in circuit devices, electrical components, emergency power supply arrangements, etc., can solve problems such as endangering equipment safety, potential safety hazards, transformer overload, etc. Limit and avoid the effect of switching the main transformer section

Pending Publication Date: 2022-03-22
GUANGDONG POWER GRID CO LTD +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are potential safety hazards if the section of the transformer is activated manually. If the section is not activated or the calculation of the section is wrong, and the transformer section is not found to exceed the limit in time, when a transformer is cut off due to failure or other reasons, the load will be transferred to another transformer. , at this time, the remaining operating transformers may be seriously overloaded, seriously endangering the safety of equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Main transformer section switching method and device of transformer substation
  • Main transformer section switching method and device of transformer substation
  • Main transformer section switching method and device of transformer substation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] figure 1 It is a flow chart of a method for switching the main transformer section of a substation provided by Embodiment 1 of the present invention. This embodiment is applicable to the calculation of the main transformer section of the substation, and the method can be executed by the main transformer section switching device of the substation. Specifically Including the following steps:

[0027] S110. Obtain the operating parameters of the substation;

[0028] Wherein, the substation may include multiple transformers, and each transformer may serve as a main transformer. During the operation of the substation, under normal circumstances, multiple main transformers can be operated in parallel to ensure the reliability of the operation of the substation. For example, in a 220KV substation, the transformer can be a three-winding main transformer. By setting the connection relationship between the high-voltage side of the main transformer and the busbar on the middle s...

Embodiment 2

[0036] Optionally, image 3 For a flow chart of a substation main transformer section switching method provided in Embodiment 2 of the present invention, see image 3 , the technical solution of this embodiment further refines the step of determining the operating state of the main transformer on the basis of Embodiment 1, and determines the operating state of the main transformer according to the operating parameters. The method includes the following steps:

[0037] S110. Obtain the operating parameters of the substation;

[0038] S121. Determine the main transformer in normal operation in the substation according to the operating parameters as the normal main transformer;

[0039] Specifically, a normal main transformer is a main transformer operating normally. When determining the state of the main transformer, it can be determined by the switch states on different sides of the main transformer. Exemplarily, when the main transformer is a three-winding main transformer,...

Embodiment 3

[0056] optional, Figure 5 It is a flow chart of a substation main transformer section switching method provided by Embodiment 3 of the present invention, see Figure 5 , the technical solution of this embodiment further refines the steps of determining the operating state of the main transformer on the basis of Embodiment 1, and calculates the main transformer section of the normal main transformer running in parallel according to the operating state. The method includes the following steps:

[0057] S110. Obtain the operating parameters of the substation;

[0058] S120. Determine the operating state of the main transformer according to the operating parameters; wherein, the operating state includes a normal parallel operating state of the main transformer;

[0059] S131. Obtain the first section of the normal main transformer running parallel on the same bus on the variable height side, the second section of the normal main transformer running parallel on the same bus on th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a main transformer section switching method of a transformer substation. The main transformer section switching method of the transformer substation comprises the following steps: acquiring operation parameters of the transformer substation; determining the operation state of the main transformer according to the operation parameters; wherein the operation state comprises a parallel operation state of a normal main transformer; and calculating the main transformer section of the normal main transformer parallel operation according to the operation state, and switching to the main transformer section of the transformer substation. According to the technical scheme provided by the invention, the load when the normal main transformers run in parallel can be calculated according to the current main transformer running state, the load serves as the current main transformer section of the transformer substation, and the main transformer section of the transformer substation is switched to the current main transformer section, so that the main transformer section can be automatically switched in time according to the current main transformer running state, and the working efficiency is improved. The situation that the main transformer section is out of limit when the operation mode of the transformer substation is changed is reduced, meanwhile, manual main transformer section switching is avoided, the main transformer section switching accuracy is guaranteed, and the main transformer operation safety of the transformer substation is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power system substation operation, and in particular to a method and device for switching main substation sections of a substation. Background technique [0002] A substation is a power facility used in the grid to transform voltage, receive and distribute electric energy, control the flow of electric power, and adjust voltage. With the rapid development of the local economy, the load of power grids in many areas has increased rapidly. In order to ensure the safety and reliability of power supply, two or three transformers are generally installed. Many power grids use the parallel operation of 220kV transformers. [0003] When the main transformer section is changed due to power failure or change of operation mode of the transformer, if the correct section is not enabled and the abnormal situation of the power grid is not monitored, the transformer will be overloaded in the event of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/062
Inventor 陈军宏李鸿文蔡景东魏可慰李庆豪邵新宇黄仁鑫陈伟德杨明李孟杰吴东韶
Owner GUANGDONG POWER GRID CO LTD