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A method for coordinating current distribution for multiple charging modules

A charging module, charging current technology, applied in the arrangement of multiple synchronous batteries, charging stations, battery circuit devices, etc., can solve problems such as damage to batteries, affecting charging efficiency, voltage fluctuations, etc., to avoid large-scale fluctuations, solve The effect of small voltage oscillation and charging current fluctuation

Active Publication Date: 2022-07-15
四川光慧新能源科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The power module in the charging pile generally uses multiple charging modules connected in parallel to realize the charging current and charging voltage. In the traditional mode, the entire power module is used as a voltage source and a current source, which makes it difficult to Will cause voltage fluctuations, affect charging efficiency and even damage the battery

Method used

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  • A method for coordinating current distribution for multiple charging modules

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Embodiment Construction

[0021] The technical solutions of the present invention are further described in detail below with reference to specific embodiments, but the protection scope of the present invention is not limited to the following.

[0022] refer to figure 1 As shown, a method for coordinating current distribution by multiple charging modules is used for current distribution among parallel charging modules in a charging power supply, including:

[0023] 1) According to the charging power, it is determined that the number of charging modules to be put into is N;

[0024] 2) Select N-1 charging modules in parallel as the current source as the charging current, and the charging current of each charging module is constant current A 1 , A 2 ...A n-1 ;

[0025] 3) The Nth charging module is used as the voltage source as the charging voltage, the charging voltage is VH, and the charging current is A n , the Nth charging module and the N-1 charging modules are connected in parallel;

[0026] T...

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Abstract

The present invention relates to a method for coordinating current distribution with multiple charging modules. According to charging power, the number of charging modules to be put into is N; The module uses constant voltage output as the voltage source, and its charging voltage is VH. As the charging progresses, when the rated current of the Nth charging module is lower than 20%, the Nth charging module is disconnected, and the N-1th charging module is disconnected. One charging module is used as the voltage source as the charging voltage, and the charging current of the remaining N‑2 charging modules is adjusted at the same time. On the premise of ensuring the charging current, this scheme adjusts the charging current based on the principle of safety orientation. At the same time, different charging modules are used as The current source and the voltage source separate the current source and the voltage source, so that the oscillation of the charging voltage will not be caused by the fluctuation of the charging current, and at the same time, the charging current of the voltage source can be used as the output adjustment of the entire charging current.

Description

technical field [0001] The invention relates to charging control, in particular to a method for coordinating current distribution by multiple charging modules, and more specifically a method for coordinating current distribution by multiple charging modules of a charging pile. Background technique [0002] The function of the charging pile is similar to the fuel dispenser in the gas station. It can be fixed on the ground or wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. Grades charge various models of electric vehicles. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging the electric vehicle. Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/62H02J7/00
CPCB60L53/62H02J7/0013H02J7/00714Y02T10/70Y02T10/7072Y02T90/12
Inventor 赵壁如
Owner 四川光慧新能源科技有限公司
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