A multi-power supply system containing supercapacitors and its control method

A technology of supercapacitors and supercapacitors, which is applied in current collectors, charge equalization circuits, battery circuit devices, etc., can solve problems such as high cost and low system efficiency, and achieve the effects of increasing service life, improving system efficiency, and improving output response

Active Publication Date: 2021-06-11
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a multi-power supply system containing supercapacitors and a control method. Aiming at the problems of high cost and low system efficiency of supercapacitors in existing multi-power supply systems, the parameters of supercapacitors are determined by energy, cost and volume. The power state selects the working mode of multiple power sources, reasonably allocates the energy and power input or output of supercapacitors and batteries, and manages battery balance

Method used

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  • A multi-power supply system containing supercapacitors and its control method
  • A multi-power supply system containing supercapacitors and its control method
  • A multi-power supply system containing supercapacitors and its control method

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Embodiment Construction

[0022] The invention provides a multi-power supply system containing a supercapacitor, including a supercapacitor, a DC / DC converter, a battery and a system control unit. The system control unit includes a charge and discharge module, an equalization module, an acquisition module and a microprocessor module.

[0023] In the embodiment of the present invention, the balance module 5 is electrically connected to the supercapacitor 1 and the battery 3, and the battery 3 and the DC / DC converter 3 are electrically connected to the charging and discharging module 4; the DC / DC converter 2 is connected to the super capacitor The capacitor 1 is connected; the acquisition module 6 is communicated with the supercapacitor 1 and the battery 3; the microprocessor module 7 is communicated with the DC / DC converter 2, the acquisition module 6 and the equalization module 5. Multi-power system with motor and load structure diagram as shown in figure 1As shown, the charging and discharging module ...

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Abstract

The invention belongs to the technical field of batteries, and in particular relates to a multi-power supply system containing supercapacitors and a control method. The system includes a supercapacitor, a DC / DC converter, a battery and a system control unit; the system control unit includes an acquisition module, a charging and discharging module, a microprocessor module and an equalizing module. The multi-power supply system containing supercapacitors of the present invention determines the parameters of supercapacitors through energy, cost and volume, selects multi-power supply operating modes according to the state of charge, and reasonably allocates the energy and power input or output of supercapacitors and batteries, effectively alleviating The impact damage of high current to the battery can improve the service life of the battery, improve the output response, improve the system efficiency, and manage the balance of the battery.

Description

technical field [0001] The invention belongs to the technical field of batteries, and specifically relates to a multi-power supply system containing supercapacitors and a control method. Background technique [0002] As the electrification of vehicles progresses, the role of batteries as electrical energy storage is becoming more and more important. When the battery meets the high power demand of the vehicle and the frequent start and stop, it bears the impact of the ever-changing transient current, and the excessive charge and discharge current will cause great damage to the battery. In view of this, people began to study the system composed of multiple power sources with different energy and power characteristics, especially the multi-power system containing supercapacitors. Based on the characteristics of high energy density of batteries and high power density of supercapacitors, in a multi-power system, the rational distribution of power between batteries and supercapac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/34
CPCH02J7/0014H02J7/345
Inventor 荣常如赵子亮王君君付磊张昶陈永胜许立超王书洋任毅窦智
Owner CHINA FIRST AUTOMOBILE
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