Distributed control method for coordinating charging and discharging efficiency of energy storage systems of power distribution network

A distributed control, charging and discharging efficiency technology, applied in the direction of AC network load balancing, multi-phase network asymmetry reduction, multi-phase network elimination/reduction of asymmetry, etc., can solve structural changes, prone to failure, increase concentration issues of control

Active Publication Date: 2017-01-18
SOUTHEAST UNIV
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Centralized control requires a central controller to process large amounts of data, is prone to failure, and, given the uncertainty of intermittent renewable energy sources, fluctuations in power generation can lead to unexpected structural changes, which further increases centralization burden of control
In addition, in the master-slave distributed control method, since the leader or virtual leader is used to collect and process information, similar failures or attacks may occur on the leader, which will affect system performance and reliability.

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
  • Distributed control method for coordinating charging and discharging efficiency of energy storage systems of power distribution network
  • Distributed control method for coordinating charging and discharging efficiency of energy storage systems of power distribution network
  • Distributed control method for coordinating charging and discharging efficiency of energy storage systems of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be described in detail below in combination with the accompanying drawings and implementation examples. It should be understood that the specific implementation cases described here are only used to explain the present invention, and are not intended to limit the invention.

[0052] In the embodiment of the present invention, the distribution network adopts a multi-agent system, and the multi-agent system includes two layers: the first-layer agent system is an information sharing layer for realizing distributed global information collection and sharing; the second-layer agent system is an information sharing layer for users To realize the coordination control layer of the distributed energy storage system based on containment; there are n agents in the multi-agent system, each energy storage system corresponds to an agent, and the number of the e...

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 distributed control method for coordinating the charging and discharging efficiency of the energy storage systems of a power distribution network. The method includes the following steps that: step 10) local power shortage is calculated: step 20) the sharing of the power shortage is realized, and the total power shortage of the systems is obtained; step 30) the marginal charging cost of each energy storage system is calculated, a preset pinning consistency value is determined; step 40) each energy storage agency is made to achieve consistency through pinning control; and step 50) the charging power of the energy storage systems in the power distribution network is adjusted. The control method is a completely distributed control method. With the control method adopted, global information sharing can be realized in a distributed manner, the requirement of distributed units, for plug-and-play operation, can be satisfied; marginal charging cost and charging states are considered, and the charging power of the energy storage systems is adjusted finely; and therefore, the charging and discharging efficiency of the energy storage systems in the power distribution network can be coordinated and optimized.

Description

technical field [0001] The invention belongs to the field of active distribution network operation control, and specifically relates to a distributed control method for coordinating the charging and discharging efficiency of a distribution network energy storage system. Background technique [0002] With the gradual increase in the penetration rate of distributed resources such as distributed power sources, new controllable loads, and energy storage systems, the distribution network will change from a passive one-way power supply network to an active network with two-way power flow. Active distribution network technology Came into being. The active distribution network is based on the actual operating state of the power system, with the goal of economy and safety, actively manages a large number of distributed power sources, and can adaptively adjust the network, power supply, and load distribution network. The active distribution network can not only realize active control...

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): H02J3/32H02J3/26
CPCY02E40/50H02J3/32H02J3/26
Inventor 柳伟顾伟曹戈楼冠男陈明
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products