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Composite power supply system

A composite power supply and circuit technology, which is applied in electric vehicles, power management, battery/fuel cell control devices, etc., can solve the problems of high manufacturing cost of battery cells, difficulty in ensuring consistency, and difficulty in reducing the weight of battery packs. The effect of improving consistency, reducing manufacturing cost and weight, and reducing manufacturing difficulty

Active Publication Date: 2019-04-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to meet the capacity and power requirements of the single battery power supply module of the vehicle power system, the manufacturing cost of each battery cell is high, the consistency is difficult to ensure, and it is difficult to make the battery pack lightweight. At the same time, the power battery system is charged and discharged as a whole, not only Inefficient and detrimental to battery life

Method used

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  • Composite power supply system
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Embodiment

[0029] This embodiment provides a composite power supply system, such as figure 1 As shown, it includes a composite power supply controller 1: respectively connected to the expandable energy storage power supply module, the built-in power type energy storage module 4 and the data acquisition module, and is used to collect relevant power data according to the data acquisition module. The data acquisition module includes load The current collector 6, the load voltage collector 5, the power type energy storage module voltage collector 7 and the expandable energy storage module voltage collector 9, the load current collector 6 is connected in series with the load, and the load voltage collector 5 is connected in parallel with the load , the power type energy storage module voltage collector 7 is connected in parallel with the power type energy storage module 4, the expandable energy storage module voltage collector 9 is connected in parallel with the expandable energy storage power...

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Abstract

The invention relates to a composite power supply system. The system comprises a scalable energy storage power supply module, a built-in power type battery power supply module, a data acquisition module, a motor inverter and a composite power supply controller. The scalable energy storage power supply module comprises a plurality of parallel battery modules and bidirectional DC voltage conversioncircuits corresponding to the battery modules and is connected with the motor inverter inside a vehicle; the built-in power type battery power supply module is connected with the scalable energy storage power supply module in parallel; the data acquisition module is respectively connected with a power energy storage module, a scalable energy storage module and a load; the motor inverter is connected with a power module to control the change of the load; the composite power supply controller is connected to a scalable battery module, a power type battery module and the data acquisition module.Compared with the prior art, the composite power supply system has the advantages of being convenient to charge, saving cost, being long in service life and high in safety and the like.

Description

technical field [0001] The invention relates to power battery charging technology, in particular to a composite power supply system. Background technique [0002] In recent years, with the maturity of power battery technology and the reduction of cost, electric vehicles have developed rapidly. However, the contradiction between the energy density and power density of power batteries is still a key issue restricting the development of electric vehicles. For the power supply system of high-power electric vehicles, it is very important to be able to meet the demand power of the vehicle in real time and efficiently and ensure the cruising range of the vehicle. Therefore, it is of great significance to design a vehicle battery power system with excellent power, sufficient capacity, long life and economy. [0003] At present, in order to meet the capacity and power requirements of the single battery power supply module of the vehicle power system, the manufacturing cost of each ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/10
CPCY02T10/70Y02T10/72
Inventor 魏学哲戴海峰王学远李司达
Owner TONGJI UNIV
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