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Method and apparatus for monitoring UPS power sources

A technology of power supply and redundant power supply, which is applied in the field of UPS system and can solve the problems of unpredictable shutdown or disconnection, output voltage distortion or fluctuation, etc.

Inactive Publication Date: 2008-12-03
LIEBERT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when other modules are not present, depending on the load at the time, this method can cause large distortions or fluctuations in the output voltage, so that the consequences of shutting down or disconnecting the power supply become unpredictable

Method used

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  • Method and apparatus for monitoring UPS power sources
  • Method and apparatus for monitoring UPS power sources
  • Method and apparatus for monitoring UPS power sources

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Embodiment Construction

[0014] Hereinafter, an illustrative embodiment of the present invention is described. For the sake of clarity, not all features of actual embodiments are described in the specification. Of course, it should be understood that in the process of developing any such actual embodiment, many decisions related to the specific embodiment must be made to achieve the developer’s specific goals, such as satisfying the constraints related to the system and the business, but for different In terms of implementation, these constraints are different. Moreover, it should be understood that this kind of development work may be complicated and time-consuming, nevertheless, it is still a routine work for those of ordinary skill in the art who benefit from the present disclosure.

[0015] figure 1 Various aspects of an exemplary parallel UPS system including the first UPS module 105 are shown. The first UPS module 105 includes a rectifier 100 that converts the power of the AC power source 110 into ...

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Abstract

An uninterruptible power supply (UPS) system includes a first UPS module that has a first power source, a second power source and a controller operable to selectively connect the first or second power source to a load. A second UPS module is connected in parallel with the first UPS module. The second UPS module also includes a first power source, a second power source and a controller operable to selectively connect the first or second power source to a load. The controller of the first UPS module gradually transfers power from the first power source of the first UPS module to the first power source of the second UPS module to detect the presence of the first power source of the second UPS module.

Description

[0001] Cross references to related applications [0002] This application claims the rights and interests of the United States Provisional Patent Application No. 60 / 595,194 filed on June 16, 2005, the entire contents of which are incorporated herein by reference. Technical field [0003] The present invention generally relates to uninterruptible power supply (UPS) systems, and more specifically, to two or more UPS systems connected and operating in parallel. Background technique [0004] The UPS system is used in applications requiring continuity of power supply, so that when the main power source fails, the UPS system provides power from the energy storage system (usually in the form of a battery). The UPS system monitors the main power supply and controls various UPS components to continuously supply power to critical loads. [0005] To further provide power supply continuity, multiple UPS modules can be connected in parallel with other UPS modules to form a redundant UPS system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J9/06G01R19/165
CPCH02J3/005H02J9/062H02J3/007
Inventor B·赫伯T·D·布什M·N·马沃利P·泰勒
Owner LIEBERT
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