Direct current power system based on paralleling connection of storage batteries
A technology of DC power system and battery, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of difficult maintenance, system waste, environmental pollution, etc., to save system investment and maintenance costs, and improve system reliability , the effect of pollution reduction
Active Publication Date: 2013-12-18
SHENZHEN TIEON ENERGY TECH
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] The technical problem to be solved by the present invention is to provide a DC power supply system based on the parallel connection of batteries to solve the problem that the batteries cannot be directly used in parallel, and the single battery and the connecting line between the batteries are easily damaged when used in series, the reliability of the battery system and the use of the battery. Reduced service life, difficult maintenance, high cost, serious system waste, and serious environmental pollution
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] The principle of the DC power supply system based on battery parallel connection in the preferred embodiment of the present invention is as follows: figure 1 As shown, it includes an AC power distribution unit 10 , a plurality of converters 30 and a DC power distribution unit 20 , and each converter 30 is connected to a storage battery 40 . attached figure 1 Among them, a plurality of converters 30 are identified by serial numbers respectively, that is, "converter 1", "converter 2" ... "converter N", and a plurality of storage batteries 40 are also identified by serial numbers, that is, "battery 1", " Battery 2"..."Battery N". The output terminal of the AC power distribution unit 10 is connected to the input terminal of each converter 30 . The output end of each converter 30 is connected to the input end of the DC power distribution unit 20 through the system DC bus, and the output end of the DC power distribution unit 20 can be connected to multiple loads. The DC po...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a direct current power system based on paralleling connection of storage batteries. The direct current power system comprises an alternating current distribution unit, wherein the alternating current distribution unit is connected with a plurality of converters; each converter is connected with the storage battery; the plurality of converters are connected to a direct current distribution unit by a system direct current bus; an output end of the direct current distribution unit is connected with a load; the direct current power system also comprises a monitoring unit which detects an operating situation of the alternating current distribution unit, controls the converters according to the operating situation and reports the operating situation to an upper computer; the converters convert alternating currents which are output by the alternating current distribution unit into high-voltage direct currents, charge the storage batteries and supply power to the load by the direct current distribution unit when the alternating current distribution unit normally operates; or the converters supply power to the load by using energy which is stored in the storage batteries when the alternating current distribution unit abnormally operates. A single low-voltage storage battery is converted into a required direct current voltage for output by using a high-frequency converter technology, and all storage batteries in the system are isolated from one another, so the capacity of the system is improved by unlimited parallel connection of the storage batteries.
Description
technical field [0001] The invention relates to the technical field of batteries, and more specifically, relates to a DC power supply system based on battery parallel connection. Background technique [0002] Due to the inherent characteristics of the battery and the limitations of the existing technology, the output voltage of a single battery is low, and each battery has slight differences in characteristics. To fatal impact, so the battery can not be directly used in parallel to increase the capacity of the battery. [0003] When high-voltage and large-capacity batteries are needed as energy storage units or backup power sources, the current method is to connect multiple low-voltage and high-capacity batteries in series. However, using batteries in series can not expand the capacity infinitely, but also brings the following series of problems that cannot be overcome The problem: [0004] 1. When the battery pack is charging and discharging, it is easy to overcharge or o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/34
Inventor 金林刘平杨忠亮冷旭东谢永刚
Owner SHENZHEN TIEON ENERGY TECH