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A dc/dc parallel operation output regulation method and system thereof

A technology of output regulation and parallel connection, which is applied in parallel operation of DC power supplies, electrical components, circuit devices, etc., and can solve problems such as low output current accuracy and short battery life

Active Publication Date: 2021-06-08
XUJI GRP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a DC / DC parallel operation output adjustment method and its system, through the detection and adjustment of the output current ripple of the system, to solve the problems caused by the low output current accuracy of the DC / DC parallel operation. The problem of short life of electrical equipment

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  • A dc/dc parallel operation output regulation method and system thereof
  • A dc/dc parallel operation output regulation method and system thereof

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] This embodiment only takes the charging process as an example, and the discharging process is also applicable to this control technology, and its implementation is similar to that of the charging process, which will not be repeated here.

[0032] Such as figure 1 A diagram of a DC / DC parallel operation system is shown, including an upper-level energy conversion system 1, a DC / DC device 2, and an energy storage device 3; a DC / DC parallel operation output regulation system of the present invention monitors the low-voltage side DC in real time The bus bar and the output terminals of each DC / DC device 2 can feedback and adjust the output distribution of each DC / DC device 2 at the same time.

[0033] Such as figure 2 The flow chart of a DC / DC parallel operation output adjustment method shown, the method steps of the present invention are as follows:

[...

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Abstract

The invention relates to a DC / DC parallel operation output adjustment method and its system. The invention monitors the output of the DC / DC parallel system and the output of each DC / DC device, and feedbacks and adjusts the output of each DC / DC device, so that The system output and the output of each DC / DC device meet the standard; and on the basis of reaching the standard, continue to implement the optimization feedback adjustment, and finally effectively improve the quality of the output power, optimize the output of each DC / DC device, and prolong the maximum The service life of power receiving equipment and each DC / DC equipment.

Description

technical field [0001] The invention relates to a DC / DC parallel operation output regulation method and a system thereof, belonging to the field of DC charging and power supply. Background technique [0002] DC / DC is a key component in the energy storage system and electric vehicle charging system. Its output terminal is directly connected to the battery, so its working status directly determines the working performance of the entire charging system. At the same time, it also brings about the problem that the output distribution of each module is unreasonable, which leads to the reduction of the overall working efficiency of the system, especially when DC / DCs of different capacity specifications are operated in parallel. [0003] When multiple DC / DCs of the same type or with multiple rated capacities are operated in parallel, if the output distribution is unreasonable, the output current performance will be reduced, the charging current accuracy will be reduced, and the life...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/10
CPCH02J1/102
Inventor 徐军李瑞生马红伟郭宝甫王强
Owner XUJI GRP