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Uninterruptible power supply battery sharing system and its control method
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A technology for sharing systems and control methods, which is used in emergency power supply arrangements, battery circuit devices, current collectors, etc.
Active Publication Date: 2016-08-24
KEHUA DATA CO LTD
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[0007] In view of this, the purpose of the present invention is to provide a battery sharing system for uninterruptible power supply and its control method. In order to improve the utilization rate of the battery pack in the redundant UPS and prolong the standby time of the equipment, the circuit structure is simple, the cost is low, and there is no need to solve the battery problem. Complicated issues such as current sharing and circulation between UPSs, the control method is simple, does not increase the risk of system failure points, and has a reliable and high-performance battery sharing system
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Embodiment 1
[0095] Such as figure 1 and figure 2 As shown, the present invention provides an uninterruptible power supply battery sharing system comprising a first switching circuit 12, a second switching circuit 22, a third switching circuit 36, a first voltage sampling circuit 31, a second voltage sampling circuit 32, a third voltage Sampling circuit 33, fourth voltage sampling circuit 34 and control module 35;
[0096] The control module is connected to the first switching circuit control terminal, the second switching circuit control terminal, the third switching circuit control terminal, the first UPS host 11 control terminal and the second UPS host 21 control terminal, the The control module is also connected to the output terminal of the first voltage sampling circuit, the output terminal of the second voltage sampling circuit, the output terminal of the third voltage sampling circuit and the output terminal of the fourth voltage sampling circuit;
[0097] The first UPS host bus...
Embodiment 2
[0126] Such as Figure 12 As shown, the present invention provides an uninterruptible power supply battery sharing system comprising a first switching circuit, a second switching circuit, a third switching circuit, a first voltage sampling circuit, a second voltage sampling circuit, a third voltage sampling circuit, a fourth Voltage sampling circuit and control module;
[0127] The control module is connected to the first switching circuit control terminal, the second switching circuit control terminal, the third switching circuit control terminal, the first UPS mainframe control terminal and the second UPS mainframe control terminal, and the control module Also connect the output terminal of the first voltage sampling circuit, the output terminal of the second voltage sampling circuit, the output terminal of the third voltage sampling circuit and the output terminal of the fourth voltage sampling circuit;
[0128] The first UPS host bus is connected to the input end of the f...
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Abstract
The invention relates to an uninterruptible power supply and battery sharing system and control method of the uninterruptible power supply and battery sharing system. The uninterruptible power supply and battery sharing system comprises a first switching circuit, a second switching circuit, a third switching circuit, a first voltage sampling circuit, a second voltage sampling circuit, a third voltage sampling circuit, a fourth voltage sampling circuit and a control module. The uninterruptible power supply and battery sharing system has the advantages that the circuit structure is simple, cost is low, the machine capacity and the machine type are not strictly required, a configured battery only needs to be reasonable, the control logic is simple and reliable, the utilization rate of a storage battery in a redundant UPS is improved, and the standby time of equipment is prolonged.
Description
technical field [0001] The invention relates to the field of uninterruptible power supply battery sharing, in particular to an uninterruptible power supply battery sharing system and a control method thereof. Background technique [0002] Modern data centers and other places that require relatively high power quality are equipped with uninterruptible power supplies. In order to further improve the reliability of the power supply system, multi-machine parallel redundancy or N+X redundancy technology is usually used. Two or more The UPS provides electrical energy. The traditional battery pack configuration method is that each UPS is equipped with an independent battery pack. When a UPS fails, the battery that is equipped with it is also sluggish, which reduces the utilization rate of the battery. Especially in the case of ultra-high power and long backup time, the cost of the battery it is equipped with will be equal to or even higher than the cost of the whole UPS. There is...
Claims
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Application Information
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