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

Three-phase unbalanced stepwise adjustment method of power distribution transformer area

A technology of power distribution station area and adjustment method, applied in the field of power transmission and distribution, can solve the problems of incomplete balance, reactive power overcompensation, low cost, etc. Effect

Inactive Publication Date: 2018-09-28
HOHAI UNIV
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unbalanced degree of load is time-varying, and has great randomness and uncertainty
Therefore, the above method cannot completely and effectively solve the three-phase load balancing problem of the distribution network.
[0003] On the one hand, if the scheme of installing three-phase unbalanced power switching devices at suitable nodes to achieve dynamic balance compensation is used alone, the cost is low and more economical, but it has a strong delay and cannot fully achieve balance
On the other hand, the three-phase load balance automatic adjustment and compensation method can solve the delay problem and achieve complete balance, but the cost is high, reactive power overcompensation is prone to occur, and the line loss increases

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
  • Three-phase unbalanced stepwise adjustment method of power distribution transformer area
  • Three-phase unbalanced stepwise adjustment method of power distribution transformer area
  • Three-phase unbalanced stepwise adjustment method of power distribution transformer area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0033] Such as figure 1 Shown is the flow chart of the implementation of the control strategy in this embodiment, which includes the implementation process of the optimal layout scheme of the three-phase unbalanced switching device in the distribution station area and the automatic adjustment and compensation process of the three-phase load balance. Among them, the specific principles of the optimal layout of the three-phase unbalanced switching device are as follows:

...

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 unbalanced stepwise adjustment method of a power distribution transformer area. In the three-phase unbalanced stepwise adjustment method of the power distributiontransformer area, a three-phase imbalance switching device and a three-phase load balance automatic adjustment compensation device are included. The method comprises the steps of firstly adjusting athree-phase unbalanced load by utilizing the three-phase imbalance switching device; and then adjusting an electric capacity needing to be compensated in the power distribution transformer area by applying the three-phase load balance automatic adjustment compensation device. by using the three-phase imbalance switching device and the three-phase load balance automatic adjustment compensation device in combination, the three-phase unbalanced stepwise adjustment method of the power distribution transformer area greatly reduces the compensation capacity and does not need simultaneous compensation for the three phases. In addition, the use amount of equipment is also reduced, and the equipment cost is accordingly reduced; and furthermore, the three-phase balance degree becomes higher and thepower factor is closer to 1.

Description

technical field [0001] The invention relates to a step-by-step adjustment method for three-phase unbalance in a power distribution station area, belonging to the field of power transmission and distribution. Background technique [0002] In order to alleviate the phenomenon that the unbalanced three-phase load leads to the continuous increase of line loss and affects the power quality, three-phase balanced distribution is usually carried out before the load in the distribution station area is connected. However, due to the fluctuation of the actual load, there is still a large three-phase unbalance phenomenon. At present, the static solution is mainly used, that is, according to the data predicted in advance, the asymmetrical load is distributed on different nodes, thereby greatly alleviating the balance problem. Adjustment, so as to achieve the purpose of basic balance of the load of each phase. However, the unbalanced degree of load is time-varying, and has great randomn...

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): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 金哲倩周聪陈谦鞠平周文海邓晓璐秦川金宇清孙黎霞
Owner HOHAI UNIV
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