Composite energy power distribution system

A composite energy and distribution system technology, applied in the direction of electric vehicles, electrical components, transportation and packaging, etc., can solve problems such as distribution, increased energy loss, and inability to perform power, so as to protect composite energy, avoid overcharging, and avoid overcharging. The effect of discharge

Inactive Publication Date: 2015-12-16
香港城市大学深圳研究院
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Problems solved by technology

In this patent application, the working voltage of the lithium battery pack and the supercapacitor module of the composite energy source must be the same. Due to the different characteristics of the two, it is easy to cause a voltage deviation between the two and affect the life; and power distribution cannot be performed, and the efficiency cannot be improved. , will increase energy loss; in addition, supercapacitors are not fully utilized, there are many electronic components, and the structure is complex

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Embodiment Construction

[0028] 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 belong to the protection scope of the present invention.

[0029] It should be noted that expressions such as "first" and "second" appearing multiple times in the specification are only used to distinguish different terms, and are not used to limit the order of different terms.

[0030] In the prior art, a single battery energy source has always had problems such as low power density, limited cycle life, and poor low-temperature performance. In the past ten years, the price of supercapacitors has dropped by 99%, and t...

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Abstract

The invention discloses a composite energy power distribution system, comprising a composite energy and a control device. The composite energy consists of a lithium battery group and a super capacitor module; the control device consists of a control unit, a first DC/DC converter and a second DC/DC converter; the lithium battery group is connected to the first DC/DC converter; the super capacitor module is connected to the second DC/DC converter; the first DC/DC converter is connected to the DC/DC converter and then both the first DC/DC converter and the second DC/DC converter are connected to a load; a control unit is connected to the lithium battery group, the super capacitor module, the first DC/DC converter, the second DC/DC converter and the load through a CAN communication network; the control unit obtains the power requirement of the load, the state data of the first DC/DC converter, the state data of the second DC/DC converter and the state data of the composite energy through the CAN communication network; the power distribution that is respectively born by the lithium battery group and the super capacitor module is calculated; and the power which is respectively born by the corresponding lithium battery group and the super capacitor module is controlled.

Description

technical field [0001] The invention relates to composite energy management technology, in particular to a composite energy power distribution system. Background technique [0002] The existing composite energy management system is generally based on simple parallel connection, and some electronic switches are used to control on-off, so as to achieve the control of composite energy. Such a composite energy system cannot regulate the power distribution between supercapacitors and lithium batteries, and cannot make full use of the complementary characteristics of supercapacitors and lithium batteries to form a more efficient and practical energy management system. [0003] The State Intellectual Property Office of the People's Republic of China published on February 26, 2014 a patent application with a publication number of 203456930U and an invention name of a composite energy system. The composite energy system is composed of composite energy and a control system. The lithi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34
Inventor 廖少毅杨晓璐丘东海
Owner 香港城市大学深圳研究院
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