Energy feedback type storage battery intelligent charging and discharging system
A technology of intelligent charging and discharging, storage battery, applied in battery circuit devices, battery load switching, collectors, etc., can solve problems such as easy failure, low reliability, and current waveform distortion on the AC side, so as to improve battery life and solve problems Effects of energy-intensive consumption problems
Inactive Publication Date: 2021-07-27
ANHUI LEOCH BATTERY TECH
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Problems solved by technology
[0003] At present, the most widely used high-power battery charging technology is realized by phase-controlled rectification of thyristors. The current waveform on the AC side is seriously distorted, the power factor is low, and the power grid is seriously polluted. Moreover, the degree of automation is low, the operation is complicated, and it is prone to failure and reliable. The performance is not high; the discharge process usually passes through a first-level electric energy conversion device, which consumes electric energy in the form of heat through resistance, resulting in a huge waste of energy, and the temperature is high, which affects the working environment; large and medium-sized battery factories have hundreds of One or even thousands of charging and discharging equipment, huge energy consumption
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[0019] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] Such as figure 1 As shown, the energy feedback type battery intelligent charging and discharging system includes a power input module, the output end of the power input module is connected to an AC / DC rectification module, and the output end of the AC / DC rectification module is connected to a DC common bus; AC / DC The rectification module adopts synchronous rectification technology to convert the alternating current into the required direct current voltage; the efficiency of converting direct current voltage can be increased to more than 80%, and the power factor is improved. At the same time, the linear power supply...
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An energy feedback type storage battery intelligent charging and discharging system comprises a power supply input module, the output end of the power supply input module is connected with an AC / DC rectification module, the output end of the AC / DC rectification module is connected with a DC common bus, the DC common bus is bidirectionally connected with multiple groups of bidirectional DC / DC modules, and each bidirectional DC / DC module is correspondingly connected with a battery pack; the DC common bus and each battery pack are electrically connected to the input end of the sampling control module, and the output end of the sampling control module is electrically connected to the bidirectional DC / DC module; the charging and discharging direct-current common bus and energy feedback technology is adopted, electric energy is fully utilized, and the problems that an existing charging and discharging technology seriously pollutes a power grid and consumes a large amount of energy are solved; and a charging mode of combining pulse charging and three-stage charging is adopted, so that the service life of the battery is prolonged, and the purpose of quick charging can be achieved.
Description
technical field [0001] The invention belongs to the technical field of storage batteries, in particular to an energy feedback type intelligent charging and discharging system for storage batteries. Background technique [0002] With the continuous and rapid development of my country's national economy, the basic industries such as automobile industry, communication, electric power, transportation and railway, and computer are developing very rapidly, and the demand for batteries is increasing day by day, which greatly promotes the development of the battery industry. The charging internal formation process is an essential link in the battery production process. At the same time, each battery needs to be charged and discharged multiple times before leaving the factory. Therefore, battery manufacturers need to be equipped with a large number of battery charging and discharging devices. [0003] At present, the most widely used high-power battery charging technology is realize...
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IPC IPC(8): H02J7/02H02J7/00H02J3/32
CPCH02J7/02H02J7/0071H02J7/00711H02J7/0068H02J3/32
Inventor 马金斗张亮张鑫李彬任亚东
Owner ANHUI LEOCH BATTERY TECH