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Current-sharing control system and method

A flow control system and flow control technology, applied in the field of control, can solve problems such as inability to carry out current sharing control, and achieve the effect of solving current sharing control.

Inactive Publication Date: 2019-03-01
STATE GRID BEIJING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a current sharing control system and method to at least solve the technical problem that current sharing control cannot be performed

Method used

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  • Current-sharing control system and method

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under ap...

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Abstract

The invention discloses a current-sharing control system and method. The system comprises a plurality of to-be-current-shared modules, a current-sharing bus module and a plurality of current-sharing control modules, wherein the current-sharing bus module is connected with the to-be-current-shared modules and is used for determining an average current output from the plurality of to-be-current-shared modules, and the plurality of current-sharing control modules are in one-to-one correspondence to the plurality of to-be-current-shared modules and are used for determining a reference current according to output voltages and output currents of the to-be-current-shared modules and the average current of the current-sharing bus and controlling the to-be-current-shared modules to output a current-sharing current according to the output current and the reference current. By the system, the technical problem that current-sharing control cannot be performed is solved.

Description

Technical field [0001] The present invention relates to the field of control, and in particular to a current sharing control system and method. Background technique [0002] Parallel power supply systems provide high-power output through multiple power modules operating in parallel. [0003] Due to the limitation of the technological level and the inevitability of errors, the parameters of each module participating in parallel in the actual system cannot be completely consistent with each other. If multiple power modules are directly connected in parallel, it is bound to be difficult to ensure that the power modules are evenly shared For load current, some power modules may output a relatively large current, some power modules may output a relatively small current, and even some modules may not output current at all. [0004] In view of the above-mentioned problem of inability to perform current sharing control, no effective solution has been proposed yet. Summary of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/10
CPCH02J1/10
Inventor 金渊刘秀兰朱洁及洪泉陈平李国昌李香龙赵宇彤张宝群陈熙曾爽关宇陈艳霞于希娟迟忠君孟颖张倩程林
Owner STATE GRID BEIJING ELECTRIC POWER