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Control method and device for orderly charging of electric vehicles

A control method and technology for electric vehicles, applied in battery/fuel cell control devices, electric vehicle charging technology, electric vehicles, etc., can solve problems such as difficulty in application, frequent adjustment of charging power of charging piles, negative impact on battery and charger life, etc.

Inactive Publication Date: 2018-02-16
周燕红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcomings of this type of method are: 1) It is difficult to apply to the online application of large-scale electric vehicle orderly charging strategy; 2) The orderly charging process may frequently adjust the charging power of the charging pile, which will have a negative impact on the life of the battery and charger , it is difficult to obtain user support and practical application
However, the rate and period of the time-of-use electricity price are not dynamically adjusted according to the actual operation of the system

Method used

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  • Control method and device for orderly charging of electric vehicles
  • Control method and device for orderly charging of electric vehicles
  • Control method and device for orderly charging of electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 1 It is a flow chart of a control method for orderly charging of electric vehicles provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of orderly charging of electric vehicles. The method can be executed by a computer or a charging station system, specifically including Follow the steps below:

[0065] Step S110, obtaining the electric vehicle charging demand;

[0066] Among them, the charging station obtains the battery capacity B of the electric vehicle through the battery management system on the electric vehicle i and the current state of charge of the electric vehicle battery (i.e. the ratio of the electric vehicle's current battery charge to its total battery capacity). In order to reasonably formulate the user's charging time-of-use electricity price period, the customer needs to inform the charging control system in the charging station of the expected residence time of the electric vehicle t i and EV sta...

Embodiment 2

[0073] figure 2 It is a flow chart of a control method for the orderly charging of electric vehicles provided by Embodiment 2 of the present invention. On the basis of the above-mentioned embodiments, this embodiment preferably sets the time-of-use electricity price according to the charging demand and the system operation status. The following steps are further added:

[0074] Step S221, calculating the number T of vehicle dwelling time periods i and the number of time periods required for charging J i ;

[0075] Step S222, preliminarily calculating the optimal time-of-use valley electricity price start time period;

[0076] Step S223 , adjusting the optimal time-of-use off-peak electricity price start time period and formulating the electricity price and prompting the user.

[0077] In the technical solution of this embodiment, when the time-of-use electricity price is formulated according to the charging demand and the system operating state, the number of vehicle resi...

example 3

[0100] image 3 Shown is a flow chart of a method for controlling orderly charging of electric vehicles provided by Embodiment 3 of the present invention. In this embodiment, on the basis of the above-mentioned embodiments, preferably, when calculating the number of vehicle residence time periods T i and the number of time periods required for charging J i After that, also include:

[0101] Step S321, according to the stay time of the newly connected user and the charging demand, preliminarily judge whether the customer's charging demand can be met;

[0102] Step S322, if not, calculate the system's maximum battery charge level when leaving and prompt the user;

[0103] Step S222, if yes, preliminarily calculate the optimal time-of-use valley electricity price start time period.

[0104] In the technical solution of this embodiment, based on the residence time and charging demand of the new access user, it is initially judged whether the charging demand of the customer can...

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Abstract

The invention discloses a control method and device for orderly charging of electric vehicles. By acquiring charging demands of the electric vehicles, time-of-use electricity price is set according tothe charging demands and the system running state; and a user autonomously responds to the time-of-use price and determines a charging plan, the negative effect of large-scale electric vehicle charging on a power grid is eliminated, the effects of significantly reducing the operating cost of a charging station and the charging cost of an electric vehicle user is achieved, and the effect of charging load peak load shaving is effectively realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of electric vehicle charging control, and in particular, relate to a control method and device for orderly charging of electric vehicles. Background technique [0002] Electric vehicles have good energy-saving, environmental protection and low-emission potentials, and they have received widespread attention from governments around the world in recent years. Large-scale electric vehicle access will have a non-negligible impact on the operation and planning of the power grid. In particular, the access of electric vehicles will bring large-scale load growth to the power grid. In the absence of charging coordination, it will further aggravate the load peak-valley difference in the distribution network and have a negative impact on the safe operation of the distribution network. [0003] In order to effectively reduce the negative impact of large-scale electric vehicle charging on the p...

Claims

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Application Information

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IPC IPC(8): B60L11/18
CPCB60L53/64B60L58/10Y02T10/70Y02T10/7072Y02T90/12
Inventor 周燕红
Owner 周燕红
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