Energy storage power supply charging device and method
A technology of energy storage power supply and charging device, which is applied in the direction of battery circuit devices, circuit devices, collectors, etc., and can solve problems such as high charging power, overcharging of energy storage power supplies, high requirements for charging devices and system capacity, etc.
Inactive Publication Date: 2013-11-20
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Problems solved by technology
[0006] The charging method using constant current charging is easy to cause overcharging of the energy storage power supply, and in such high-current and high-power applications, the charging power is very large in the later stage of charging, and the capacity of the charging device is very high.
Although constant power charging is faster than constant current charging, the charging current is too large at the initial stage of charging, which requires high current tolerance of the charging device.
[0007] Therefore, on the basis of ensuring that the requirements for charging time can be met, how to solve the problem of high capacity requirements for charging devices and systems and high requirements for high current tolerance during the charging of energy storage power supplies in the prior art become an important technical problem to be solved by those skilled in the art
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[0035] This specific embodiment provides a charging method for an energy storage power supply, which has lower requirements on the capacity of the system and devices, and at the same time has lower requirements on the current tolerance value of the devices. This specific embodiment also provides a charging device for an energy storage power supply. Similarly, it has lower requirements on the capacity of the system and devices, and at the same time has lower requirements on the current withstand value of the devices.
[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts ...
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The invention discloses an energy storage power supply charging method and device. The charging device comprises a constant-current charging circuit used for constant-current charging of an energy storage power supply, a constant-power charging circuit used for constant-power charging of the energy storage power supply, a control module used for controlling the charging of the energy storage power supply by the constant-current charging circuit first, and then controlling the charging of the energy storage power supply by the constant-power charging circuit. Through the arrangement, the charging device has a low capacity requirement on system and devices, and also has a low requirement on current resistance value of the devices.
Description
technical field [0001] The invention relates to the technical field of charging equipment, in particular to a charging device and a charging method for an energy storage power supply. Background technique [0002] The energy storage type rail transit vehicle is a rail vehicle equipped with an energy storage power supply, and the energy storage power supply of the rail vehicle can store electric energy for traction power. Energy storage rail transit vehicles are suitable for urban traffic with frequent starts and stops, and there is no need to erect wires for power supply. Compared with traditional power transmission rail transit vehicles, energy storage rail transit vehicles can save the power loss of transmission lines. [0003] Energy storage rail transit vehicles use energy storage power as the energy storage component. Each station is equipped with a charging system. Whenever the vehicle stops in the station, the charging system in the station charges the energy storage ...
Claims
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IPC IPC(8): H02J7/00H02J7/04H02J7/10
Inventor 胡润文张彦林张伟先尚江傲陈中杰柯建明陈朝晖文午董凯文
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD