Economical charging and discharging method for storage battery of electric vehicle

An electric vehicle, charging and discharging technology, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems that have not yet been combined with blockchain and charging rights transactions, and achieve the goal of reducing reserve capacity and peak-to-valley difference Effect

Inactive Publication Date: 2021-06-04
张展浩
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  • Economical charging and discharging method for storage battery of electric vehicle
  • Economical charging and discharging method for storage battery of electric vehicle
  • Economical charging and discharging method for storage battery of electric vehicle

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Embodiment 1

[0102] The charging and discharging optimization curve of electric vehicles is as follows: figure 2 As shown, while ensuring the economy of electricity consumption, the loss caused by the charging and discharging behavior of the battery is kept within a controllable range. It can be seen from the figure that the electric vehicle is charged from 2 o'clock to 6 o'clock, of which, 2-6, 12-18, 22-24 hours is charging mode. Among them, 2-4, 4-6, 8-10, and 12-18 are slow charging modes, and 4 o'clock and 14-16 o'clock are fast charging modes. In order to ensure the travel requirements of customers, generally 6-8 o'clock and 18-20 o'clock are the time not to participate in the system adjustment. 10-12 o'clock and 20-22 o'clock are the peak hours of electricity consumption. Electric vehicles are discharged to obtain electricity fee income. In order to ensure that users travel, there is a minimum driving time T 1 For (5:00 in the present invention), after the specified time period T...

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Abstract

An economical charging and discharging method for a storage battery of an electric vehicle belongs to the technical field of battery control, and comprises the following steps: 1, setting T as a total planning time scale, and issuing a day-ahead electricity price prediction curve Ya by a provincial power grid by using a power grid information end; 2, establishing a machine learning knowledge database AT, learning by using XGBoost to obtain a learning electricity price Yb; 3 forming a final electricity price Yc(t) at the moment t; and 4 generating a day-ahead charging and discharging arrangement curve graph S of the electric vehicle according to Ya, correcting and updating the curve graph S and the battery state SOCt of the electric vehicle, forming and returning to a power grid information end to feed back actual charging and discharging behaviors, and the like. By means of the method, the charging and discharging economical efficiency of the electric vehicle can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of battery control, and in particular relates to an electric vehicle battery and an economical charging and discharging method thereof. Background technique [0002] With the continuous improvement of battery production and manufacturing technology, the increasing environmental pollution and the gradual depletion of oil resources, the proportion of electric vehicles (Electric Vehicle, EV) in the road traffic system will increase day by day. Due to the large-scale application of clean energy power generation technology, the fluctuation of power output on the source side needs to be balanced by the configuration of large-capacity spinning standby units, which brings challenges to the safe and economical operation of the power system. As far as electric vehicles are concerned, the large-scale increase in grid load will further increase the peak-to-valley difference in distribution network load, resulting in ove...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J3/38B60L53/63B60L53/64
CPCB60L53/63B60L53/64H02J3/008H02J3/381H02J3/322Y02T10/70Y02T10/7072Y02T90/12Y02T90/167Y04S30/12Y04S30/14
Inventor 张展浩成泽阳关林
Owner 张展浩
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