Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A three-phase load balancing method and device for distribution network main and branch lines

A technology for three-phase loads and branch lines, which is applied in the direction of reducing the asymmetry of the multi-phase network, eliminating/reducing the asymmetry of the multi-phase network, etc., and can solve the problems of commutation vibration, unstable operation of the load device, and failure to consider the load characteristics, etc. , to achieve the effect of avoiding commutation vibration

Active Publication Date: 2019-11-19
BEIJING MPLUCKY TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical solution disclosed in the above-mentioned Chinese patent does not consider the load characteristics of the load device it supplies when selecting the commutation device. For example, the load device has a built-in magnetic moving part such as a motor. Commutation vibration, noise, load device can not run stably

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 three-phase load balancing method and device for distribution network main and branch lines
  • A three-phase load balancing method and device for distribution network main and branch lines
  • A three-phase load balancing method and device for distribution network main and branch lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to clarify the technical scheme and technical purpose of the present invention, the present invention will be further introduced below in conjunction with the drawings and specific embodiments.

[0029] Power wiring of distribution network:

[0030] The low-voltage output side of the distribution transformer adopts a three-phase four-wire system and is wired to residential areas to provide electrical energy to residents. The low-voltage output side can be understood as a power distribution network, a low-voltage power distribution network, and collectively referred to as a power distribution network hereinafter. The distribution network, such as Figure 4 As shown, it includes a main line and m branch lines from the low-voltage side of a distribution transformer, namely branch line 1, branch line 2, ..., branch line m. The branch line 1, the branch line 2, ..., the branch line m are respectively electrically connected to the main line, and are used to transmit the ...

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 three-phase load balance method and device for a main line and branched lines of a power distribution network. The method comprises the following steps: when the three-phase load of the main line is unbalanced, determining a phase adjustment pair of the main line and corresponding adjustment magnitude; selectively adjusting the branched lines in the branched lines with high phase switching for source phase total power load, marking commutation devices without supplying power for load devices internally provided with magnetic moving components on the source phases of the adjusted branched lines, selecting required commutation devices from the marked commutation devices, and if the marked communication devices are insufficient, selecting the communication devices from the unmarked communication devices; enabling the sum of the power loads of the communication devices selected from each adjusted branched line to be equivalent to the adjustment magnitude of the main line, and switching the access switching of the communication devices selected on the branched lines to target phase, so that the three-phase load of the main line and the branched lines reach a balance requirement. Commutation vibration is prevented from occurring in the load devices internally provided with the magnetic moving components at the user client to generate noise, and the stable operation is maintained.

Description

Technical field [0001] The present invention relates to a load balancing technology for a distribution network, in particular to a three-phase load balancing method for the main and branch lines of a distribution network suitable for low-voltage distribution networks, and a distribution network main and branch circuit suitable for realizing the balance method. The branch line three-phase load balancing device belongs to the technical field of low-voltage power distribution network power distribution. Background technique [0002] The load of the low-voltage distribution network is generally composed of a mixture of three-phase loads and single-phase loads. Residential electricity is all single-phase loads. The distribution network is more complicated, especially a large number of single-phase loads are connected to the distribution system of the low-voltage distribution network, and the load The size is different and the power consumption time is different. Therefore, the three-p...

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): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 陈鸽
Owner BEIJING MPLUCKY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com