Residential community electric automobile charging and discharging control method

A charging and discharging control, electric vehicle technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems that affect the convergence accuracy, the particle position is difficult to meet the equality constraints, etc.

Active Publication Date: 2015-11-18
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the optimization problem with equality constraints, it is necessary to use the penalty function to change the equality constraints into unconstrained, or to change the equality constraints into two inequality constraints, and then construct a new particle swarm optimization solution. These methods have difficulty in particle position. Problems that satisfy equality constraints and affect convergence accuracy

Method used

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  • Residential community electric automobile charging and discharging control method
  • Residential community electric automobile charging and discharging control method
  • Residential community electric automobile charging and discharging control method

Examples

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Embodiment

[0065] A specific embodiment of the present invention is a method for controlling charging and discharging of an electric vehicle in a residential area, the steps of which are:

[0066] A. Record the power battery capacity E of the electric vehicle i i , the maximum charging power P max,i , Power battery available capacity ratio k i ; and set the initial travel time, last return time, and daily mileage of electric vehicle i on the day as the initial travel time t of electric vehicle i on the next day i,s , and finally return to time t i,e , Daily power consumption S i ; Wherein i represents the serial number of the electric vehicle, i=1,2,3...I; I is the total number of electric vehicles in the residential area;

[0067] B. Based on the historical basic power load data of the community, predict the basic load L within the jth hour (j=1, 2, 3...24) of the next day j , and then get the daily load rate F of the next day’s base load 2min , The peak-to-valley difference F of ...

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Abstract

The invention discloses a residential community electric automobile charging and discharging control method. According to the invention, a double-layer discrete particle swarm optimization algorithm is adopted, a charging and discharging plan satisfying all constraint conditions of each electric automobile is solved through a bottom-layer particle swarm optimization algorithm, and then a control method for the charging and discharging power of all electric automobiles of a residential community is acquired through optimization by using a top-layer particle swarm optimization algorithm. The method disclosed by the invention not only can effectively improve a load characteristic index of the residential community and improve the power grid equipment utilization ratio of the residential community, but also can significantly reduce the charging expense of the electric automobiles at the same time. The residential community electric automobile charging and discharging control method is easy to implement and popularize.

Description

technical field [0001] The invention relates to the field of optimal control of electric vehicles, in particular to the field of energy interaction between electric vehicles and intelligent communities. Background technique [0002] Electric vehicles have the advantages of energy saving and emission reduction, and are emerging industries that countries are competing to develop. Breakthroughs in key technologies of electric vehicles have promoted the large-scale application of electric vehicles. The disorderly charging of large-scale electric vehicles will cause severe fluctuations in grid load, increase the expansion cost of electrical equipment, and reduce the utilization rate of electrical equipment; the energy storage potential of electric vehicles is not fully utilized, which is not conducive to the construction of active distribution networks. Formulate the charging and discharging control method of electric vehicles in residential areas, on the premise of meeting the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 杨健维黄宇王湘何正友
Owner SOUTHWEST JIAOTONG UNIV
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