Power distribution network self-healing control method

A technology of self-healing control and distribution network, applied in electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems such as abnormal operation of equipment, disturbance, and product scrapping.

A technology of self-healing control and distribution network, applied in electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems such as abnormal operation of equipment, disturbance, and product scrapping.

CN104701831AInactive Publication Date: 2015-06-10STATE GRID CORP OF CHINA +1
2 Cites 40 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power distribution network self-healing control method
  • Power distribution network self-healing control method
  • Power distribution network self-healing control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] A distribution network self-healing control method mainly includes fault location, fault recovery and self-healing evaluation.

[0045] For faults that occur in general sections or areas of the distribution network, the specific fault location steps are as follows:

[0046] l. Determine the initial search interval. In the hierarchical model of the distribution network, the power point As the base point, the matrix forming the base point layer is: ,in , because the fault section or area must be located in the layered topology model, and the base layer in the layered model, that is, the power point, must have a fault current flowing through it, and there must be a vertex in each layer behind it without a fault current flowing through it, so choose The base point layer is the power point as the initial search interval.

[0047] 2. Establish a network topology description matrix D. Number each switchgear on the feeder line of the distribution network without con...

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 provides a power distribution network self-healing control method. The method mainly comprises fault positioning, fault recovery and self-healing evaluation; continuous online diagnosis and evaluation are performed on the operating conditions of the power grid by use of an advanced monitoring method so as to discover and eliminate hidden fault danger immediately; in case of a fault, the fault can be isolated quickly and self-recovery can be realized; the influence of the fault is minimized, and safe and stable operation of the power grid and good power supply quality are ensured.

Description

technical field [0001] The invention relates to the technical field of distribution network control, in particular to a distribution network self-healing control method. Background technique [0002] With the development of social economy, the economic losses caused by power outages and their impact on society are increasing. At the same time, with the wide application of high-tech electronic equipment in social production and life, such as programmable controllers, frequency conversion speed control equipment, contactors, computers and database systems, and personal computers, these equipments have put forward higher requirements on the quality of power supply. High requirements, even a brief power interruption or voltage disturbance, may cause abnormal operation of the equipment, resulting in serious accidents such as production line stoppage, equipment damage, product scrapping, and data loss. At present, there are many power supply quality disturbance phenomena in the o...

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
10 Jun 2015
Publication
CN104701831A
IPC
H02H7/26; H02H3/06; H02J13/00
CPC
Y02E60/00; Y04S10/20
Inventors
李锰; 全少理