A charging and discharging system, a charging and discharging control system, and a charging and discharging control method for a pure electric vehicle and a power grid
A charge-discharge control and pure electric vehicle technology, applied to the charge-discharge system, can solve the problems of serious pollution, long construction period, large area occupied by hydroelectric energy storage stations, etc., and achieve the effect of reducing the cost of use
Active Publication Date: 2016-04-27
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
The cost of thermal power is high, the start and stop time is long, and the pollution is serious; the available resources of hydropower are limited, and the hydropower energy storage station occupies a large area, the construction period is long, and it is also limited by geographical conditions
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[0047] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.
[0048] The program block diagram is as follows figure 1 As shown in the figure, the vehicle-mounted intelligent terminal is used to complete the interaction between the pure electric vehicle and the power grid through the control of the two-way charging and discharging motor. Vehicle-mounted intelligent terminal and battery management system BMS (Battery Management system) pure electric battery pack SOC, charging and discharging current, maximum allowable charging and discharging current, battery pack temperature information point battery status information, with wireless communication function, can interact with the power grid in real time and dispatch the platform wirelessly Information interaction, obtain grid load information and real-time electricity price information solution, anal...
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The invention discloses a charging and discharging method for a pure electric vehicle and a power grid. A pure electric vehicle vehicle-mounted intelligent terminal control algorithm is designed, battery state information such as SOC of a BMS pure electric battery pack, charging and discharging currents, maximum permission charging and discharging currents and battery pack temperature is adopted, the battery state information carries out wireless information interaction with a power grid interaction dispatching platform, power grid load information and real-time electricity price information solutions are obtained, user instructions transmitted by a touch screen are analyzed, charging and discharging enabling of a charging machine, the charging and discharging directions of a bi-directional charging machine, charging currents and charging and discharging time are controlled through the charging and discharging control algorithm for the pure electric vehicle and the power grid to accomplish the charging and discharging coordination control over the pure electric vehicle, so that the practical requirements for balanced control over the electric vehicle and the power grid are met, and according to the requirements for power grid amplitude modulation and frequency modulation, the requirements for reducing peak and loading trough and the using requirements of a user for the electric vehicle, and the charging and discharging electricity quantity of the electric vehicle and currents are adjusted with the help of an intelligent power grid interaction platform.
Description
technical field [0001] The present invention focuses on a charging and discharging control method for pure electric vehicles and power grids, and relates to the field of smart grids. With the help of information technology and power grid control technology, electric vehicles are no longer pure power consumption loads, and can be used as electric energy units to supplement the power grid. According to the needs of power grid amplitude modulation, frequency modulation and peak shaving and valley filling while comprehensively considering the user's demand for electric vehicles, with the help of the smart grid interactive platform, the charging and discharging power and current of electric vehicles are adjusted. Background technique [0002] With the rapid development of industry and household appliances, the demand for electricity is increasing. The country has been building new large and small power plants and power stations, but they still cannot meet the needs of power loads....
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IPC IPC(8): H02J7/00
Inventor 柳士江
Owner CHERY AUTOMOBILE CO LTD