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

Feeder protection processing method, storage medium and processor

A processing method and feeder protection technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of multi-level feeder current protection mismatch, long time delay of outgoing line protection, etc., to reduce protection multi-level difference delay, reduce protection Delay, solve the effect of current protection mismatch

Active Publication Date: 2022-07-19
STATE GRID BEIJING ELECTRIC POWER +2
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An embodiment of the present invention provides a feeder protection processing method, a storage medium and a processor, so as to at least solve the technical problems in the prior art of multi-level feeder current protection mismatch and excessively long out-line protection delay

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
  • Feeder protection processing method, storage medium and processor
  • Feeder protection processing method, storage medium and processor
  • Feeder protection processing method, storage medium and processor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] According to an embodiment of the present invention, an embodiment of a feeder protection processing method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowchart, in some cases steps shown or described may be performed in an order different from that herein.

[0031]figure 1 is a flowchart of a feeder protection processing method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0032] Step S102, inserting a fault current limiter into the feeder, wherein the feeder includes an upstream line and a downstream line, the fault current limiter is not activated when the upstream line is faulty, and the fault current limiter is activated when the downstream line is faulty;

[0033] The above fault current limiter adopt...

Embodiment 2

[0095] According to another aspect of the embodiments of the present invention, a storage medium is further provided, and the storage medium includes a stored program, wherein when the program runs, a device where the storage medium is located is controlled to execute any one of the above methods.

Embodiment 3

[0097] According to another aspect of the embodiments of the present invention, a processor is also provided, where the processor is configured to run a program, wherein any one of the above methods is executed when the program is running.

[0098] The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

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 feeder protection processing method, a storage medium and a processor. Wherein, the method includes: inserting a fault current limiter in the feeder, wherein the feeder includes an upstream line and a downstream line, the fault current limiter is not activated when the upstream line fails, and the fault current limiter is activated when the downstream line fails; When the feeder fails, the protection action is performed based on the current difference between the upstream line and the downstream line and the pre-specified protection setting. The protection setting includes: the protection setting constructed for the protection section II of the upstream and downstream lines of the fault current limiter, and the protection setting according to the upper and lower levels. The protection setting value coordination relationship is used to set the delay of line protection action at all levels. The invention solves the technical problems in the prior art that the current protection of the multi-level feeder is mismatched and the delay time of the outgoing line protection is too long.

Description

technical field [0001] The invention relates to the field of power system relay protection, in particular, to a feeder protection processing method, a storage medium and a processor. Background technique [0002] Current protection is widely used in distribution network lines due to its simple principle, simple wiring and low investment. The operating current of the current stage I protection is set according to the three-phase short-circuit current at the end of each line in the maximum operation mode, and its protection sensitivity is verified according to the protection range of not less than 15% to 20% when the two-phase short-circuit is in the minimum operation mode. However, with the rapid development of the urban distribution network, the lines are getting shorter and shorter, the line impedance is getting smaller and smaller, and the number of line series is increasing. Difficult to tune. For the short circuit, the protection of the current stage I may lose the pro...

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): H02H7/26
CPCH02H7/26
Inventor 陈艳霞及洪泉李振兴于希娟吕立平谷君唐涛南徐绍军迟忠君万勇
Owner STATE GRID BEIJING ELECTRIC POWER