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

A smart substation protection action delay optimization method and device

A smart substation and protection action technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problem of slow time and other problems, and achieve the effect of improving the action time and meeting the requirements of sensitivity and quickness

Active Publication Date: 2020-04-28
XUJI GRP +4
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a smart substation protection action delay optimization method and device to solve the problem that the whole group action time of the smart substation is slower than that of the traditional substation

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
  • A smart substation protection action delay optimization method and device
  • A smart substation protection action delay optimization method and device
  • A smart substation protection action delay optimization method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] method embodiment

[0026] The method of the present invention is mainly applied to the protection device and the process layer device of the smart grid. The schematic diagram of the secondary circuit connection of the protection device is as follows figure 1 shown. Optical fiber point-to-point sampling is adopted between the protection device and the merging unit, and the communication protocol adopts DL / T 860.92; between the protection device and the intelligent terminal, optical fiber point-to-point tripping is adopted, and the communication protocol adopts DL / T 860.81.

[0027] The whole process is as follows: the sampling loop in the merging unit collects the sampling data such as voltage and current in the line, and frames the samplin...

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 relates to an intelligent substation protection operation time delay optimization method and device. Firstly, an SV message sent by a merging unit is received and the rated time delay data in the SV message is obtained. Wherein the rated delay data is the time difference between the time when the sampling data is generated and the time when the merging unit sends the rated delay data. Then, the ratio of the obtained rated delay data to the time interval of the output point is calculated and rounded to obtain the integer number of the delay points. Then subtracting the number of delay points from the sequence number of the sampling data reception time to obtain the generation time of the sampling data; Finally, the time of sample data generation is used for interpolation synchronization calculation. The invention realizes the synchronization of sampling data of channels with different analog quantities, finally achieves the purpose of lifting the whole set of operation time of the protection, and meets the requirements of sensitivity and rapidity of the relay protection.

Description

technical field [0001] The invention belongs to the technical field of electric power relay protection, and in particular relates to a method and device for optimizing the time delay of an intelligent substation protection action. Background technique [0002] Smart substation is an important part of smart grid construction. It is one of the important platforms to realize various energy conversion and control, and it is also a key part to realize various new energy generation and access to the grid. Smart substations can not only meet the requirements of smart grid informatization, automation and interaction in terms of technology and function, but also connect six key links of smart grid: power generation, power transmission, power transformation, power distribution, power consumption and dispatching. [0003] As the first line of defense of the power system, relay protection plays a very important role in ensuring the safe operation of the system, and makes an important co...

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 Patents(China)
IPC IPC(8): H02H7/22
CPCH02H7/22
Inventor 邓茂军倪传坤李宝伟谷君闻宇马和科李旭李文正闫志辉赵应兵王晓锋王智勇
Owner XUJI GRP