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UPS multiple output intelligent control system and UPS multiple output intelligent control method

An intelligent control system and multi-output technology, applied in the field of UPS, can solve problems such as power supply failure, insufficient intelligence, and inability to ensure continuous power supply of important loads, and achieve the effect of cost reduction and intelligent control methods

Active Publication Date: 2015-04-22
SHENZHEN KEHUA HENGSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the case of (1), once the UPS output is overloaded and the output is turned off, all loads will be powered off, and the continuous power supply of the most important loads cannot be guaranteed, which may cause undue power supply failures;
[0007] In the case of (2), when the output of the UPS is overloaded and the output of the sub-important load branch is disconnected, there is no control means for the condition of the branch to restore the output. Even if the total load of the UPS output decreases, it will not automatically The output of this branch usually requires human intervention to restore the output, which is not intelligent enough

Method used

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  • UPS multiple output intelligent control system and UPS multiple output intelligent control method
  • UPS multiple output intelligent control system and UPS multiple output intelligent control method

Examples

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Embodiment 1

[0041] Such as figure 1 As shown, this embodiment provides a UPS multi-output intelligent control system, including: a UPS multi-output intelligent control system, including: a UPS module, including a UPS inverter power supply unit and a UPS bypass power supply unit for Supply power to various loads;

[0042] A central control module and a total output relay module, a load module and a current sampling module connected to the central control module;

[0043] The total output relay module includes a total output relay S0, and the total output relay module is connected to the load module through the current sampling module to realize the connection and disconnection of the load module;

[0044] The load module includes a main output circuit and n branches, the main output circuit is provided with a load Load0, and the n branches are respectively provided with output relays S1, S2, S3...Sn, and the The output relays S1-Sn are respectively connected in series wit...

Embodiment 2

[0051] Such as figure 2 As shown, the present embodiment provides a control method for a UPS multi-output intelligent control system, comprising the following steps:

[0052] Step S1: The UPS module starts to supply power, the total output relay S0 in the total output relay module and the n branch output relays S1-Sn in the load module are all connected to connect all loads Load0-Loadn to the UPS module, where n is an integer greater than or equal to 0;

[0053] Step S2: The current sampling transformer L in the current sampling module samples the total output current of the current cycle , and stored in the central control module; where , Indicates the main output circuit current, The kth branch current in the table, k=0, 1, 2,..., n, m means that there are m loads connected to the UPS in the current cycle, m=k+1;

[0054] Step S3: The central control module judges the total output current of the current cycle Is it greater than the given total output current , ...

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Abstract

The invention relates to a UPS multiple output intelligent control system and a UPS multiple output intelligent control method. The method comprises the following steps: when a UPS is overload, branch loads are disconnected sequentially according to the level of importance from low to high until the overload phenomenon of the UPS disappears, and when all the branch loads are disconnected and the UPS is still overload, the main output of the UPS is disconnected, and the system stops running; and when the accessed total load decreases, the disconnected loads are reconnected to the UPS sequentially according to the level of importance from high to low according to the decrease of the total load under the condition of ensuring that the UPS is not overload. The invention further provides the system for realizing the method. Continuous power supply of important loads of the UPS can be ensured, secondary loads can be automatically reconnected after disconnected, so that the control method is more intelligent. Load disconnection and recovery can be achieved by sampling the total output current instead of sampling the current of each branch, so that the cost is lower.

Description

technical field [0001] The invention relates to the field of UPS, in particular to a UPS multi-channel output intelligent control system and method. Background technique [0002] UPS (uninterruptible power supply) usually has two output forms, one is only one total output, and the other is two or even multiple outputs. For these two output forms, UPS has overload protection function: [0003] (1) The UPS has only one total output. When the UPS output is overloaded, the output is turned off, and the recovery is delayed for a period of time or directly locked; [0004] (2) The UPS has two or more outputs. When the UPS output is overloaded, the branch output of the less important load will be shut down first. If the overload is still present, the total output will be shut down. [0005] Both of the above situations have disadvantages: [0006] In the case of (1), once the UPS output is overloaded and the output is turned off, all loads will be powered off, and the continuous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
CPCG05B19/0423
Inventor 王定富钟伟龙蔡钟山曾奕彰王武
Owner SHENZHEN KEHUA HENGSHENG TECH
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