Electric vehicle grid-connected scheduling method considering classification characteristics

A technology of electric vehicles and dispatching methods, applied in the direction of electric digital data processing, single-network parallel feeding arrangement, special data processing applications, etc., can solve the problems that cannot simply consider a single type of electric vehicles to participate in dispatching, etc.

Inactive Publication Date: 2017-11-24
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not possible to simply consider a single type of electric vehicle participating in dispatching, but

Method used

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  • Electric vehicle grid-connected scheduling method considering classification characteristics
  • Electric vehicle grid-connected scheduling method considering classification characteristics
  • Electric vehicle grid-connected scheduling method considering classification characteristics

Examples

Experimental program
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Embodiment 1

[0147] In order to demonstrate a grid-connected scheduling method for electric vehicles considering classification characteristics proposed by the present invention, the following five schemes are used for comparison:

[0148] Scenario 1: The driving characteristics of all models are considered as private cars.

[0149] Scheme 2: The driving characteristics of all models are considered as buses.

[0150] Scheme 3: The driving characteristics of all models are considered as official vehicles.

[0151] Scenario 4: The driving characteristics of all car models are considered as taxis.

[0152] Solution 5: Consider the driving characteristics of multiple types of electric vehicles, that is, the model adopted by the present invention.

[0153] figure 2 Shows the charging and discharging power of various types of electric vehicles when considering multiple types of electric vehicles. image 3 Display the charging and discharging power obtained from scheme 1 to scheme 5. from ...

Embodiment 2

[0155] In order to study the impact of a grid-connected electric vehicle dispatching method considering classification characteristics proposed by the present invention on power grid dispatching, the following three schemes are compared and analyzed under the condition of using electric vehicles considering classification characteristics:

[0156] Option 1: Disorderly charging of electric vehicles, that is, charging immediately after the electric vehicle is connected until the charging demand is met, regardless of the reverse discharge of the electric vehicle.

[0157]Scheme 2: Carry out a coordinated charging method for electric vehicles, that is, control the charging time of electric vehicles, optimize the system load and meet the charging demand at the same time, regardless of the reverse discharge of electric vehicles.

[0158] Scheme 3: Electric vehicles adopt V2G technology for optimal scheduling, that is, after electric vehicles are connected to the power grid, they perf...

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Abstract

The invention relates to an electric vehicle grid-connected scheduling method considering classification characteristics. The method is characterized by comprising the steps of (1) obtaining a probability density function of vehicle in time (tin(c,v), leave time tout (c,v) and daily mileage d(c,v) of travel characteristics of various types of electric vehicles, (2) using synchronous back substitution to carry out scene reduction on a sample scene R(v) and obtaining a reduced scene and a corresponding scene probability, (3) establishing a random unit combination model containing electric vehicles with thermal power unit total cost Fcost minimum as a scheduling target function, and linearizing nonlinear conditions in the model, and (4) using a mixed integer programming method to carry out solution and obtaining scheduling statistical information which comprises charge and discharge times and charge and discharge power of various types of electric vehicles and optimization information of the start and stop of a unit. Compared with the prior art, the method has the advantages of quickness and high reliability, high feasibility and a wide application range.

Description

technical field [0001] The invention relates to a grid-connected scheduling method for electric vehicles, in particular to a grid-connected scheduling method for electric vehicles considering classification characteristics. Background technique [0002] After large-scale electric vehicles are connected to the power grid, if they are not guided and controlled, the original load of the power grid will be "peaked on top of the peak", resulting in an increase in the peak-to-valley difference, which will affect the problem of unit combination. In order to reduce the adverse impact of electric vehicles on the grid and make full use of the energy storage characteristics of electric vehicles, the problem of unit combination including electric vehicles has received extensive attention. [0003] The random unit combination model including electric vehicles is difficult to solve due to the complexity of variables and constraints. At present, the mixed integer programming method is gene...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/04G06F17/50H02J3/46G06Q50/06
CPCG06F30/20G06Q10/04G06Q10/0631G06Q50/06H02J3/46
Inventor 葛晓琳裴晨皓郝广东
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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