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UPS parallel machine system and parallel machine method thereof

A stand-alone, this stand-alone technology, applied in the direction of emergency power supply arrangement, electrical components, circuit devices, etc., can solve the problems of high hardware cost and poor anti-interference ability, and achieve the goal of saving design cost, enhancing anti-interference ability and scalability Effect

Active Publication Date: 2011-11-16
VERTIV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a UPS parallel system, which can save the circuit design cost and enhance the system’s anti-interference ability and scalability

Method used

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  • UPS parallel machine system and parallel machine method thereof
  • UPS parallel machine system and parallel machine method thereof
  • UPS parallel machine system and parallel machine method thereof

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] In a UPS parallel system, at least two UPS stand-alones can be included, and the logical structure of each UPS stand-alone is the same, so this application only takes one UPS stand-alone as an example for illustration, and the logical structures of other UPS stand-alones in the UPS parallel system are not described. repeat. like figure 1 As shown, in the logical structure diagram of the UPS stand-alone embodiment 1, the UPS stand-alone includes a CAN (serial communication) bus unit 100, a current calculation unit 200 and an output adjustment unit 300, wherein the CAN bus unit 100 broadcasts to other UPS stand-alone Send the output current of this stand-alone unit and receive the output current of other stand-alone units. The current calculation unit 200 ca...

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Abstract

The invention relates to a parallel machine system of uninterruptible power supply (UPS) and a parallel machine method thereof. The UPS parallel machine system comprises at least two UPS single machines. Each UPS single machine includes: a CAN bus unit (100), which is used for broadcast transmitting an output current of the single machine to the other UPS single machine by a CAN bus and receiving an output current of the other single machine; a current calculating unit (200), which is used for calculating an average current of the UPS parallel machine system and circulation of the single machine according to an output current of each UPS single machine; and an output adjusting unit (300), which is used for adjusting an output voltage of the single machine according to the average current of the UPS parallel machine system and the circulation of the single machine. According to the above-mentioned technical scheme provided in the invention, a design cost of a circuit can be saved; and meanwhile, an anti-interference ability and expandability of the system are enhanced.

Description

technical field [0001] The present invention relates to a UPS power supply, more specifically, to a UPS parallel system and a parallel method thereof. Background technique [0002] UPS (Uninterruptible Power Supply, uninterruptible power supply) is widely used in telecommunications, finance, government, manufacturing and other industries. It can provide uninterrupted power supply for equipment, so that users will not affect their work or lose data due to power outages. It mainly plays two roles in the application of the power supply system: one is emergency use, preventing sudden power failure from affecting normal work and causing damage to equipment and data; "Power pollution" such as low voltage, wire noise, and frequency offset improves power quality and provides high-quality power to the system. [0003] The N+X redundant parallel system of UPS is connected in parallel with the output of N+X single UPSs. The system can carry N times the load of a single UPS, and X UPSs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00
Inventor 刘小刚
Owner VERTIV CORP