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UPS systems and methods using UPS modules with differential mode inductor coupling

A differential mode inductance and coupling technology, applied in the field of uninterruptible power supply equipment, can solve problems such as damage

Inactive Publication Date: 2015-07-15
EATON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parallel arrangement of the switch-mode converters may be vulnerable to the generation of significant high-frequency currents between the modules

Method used

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  • UPS systems and methods using UPS modules with differential mode inductor coupling
  • UPS systems and methods using UPS modules with differential mode inductor coupling
  • UPS systems and methods using UPS modules with differential mode inductor coupling

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Embodiment Construction

[0021] Specific exemplary embodiments of the inventive subject matter will now be described with reference to the accompanying drawings. However, inventive subject matter may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the invention to those skilled in the art. range of topics. In the drawings, the same numerals indicate the same elements. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and not of limitation of the inventiv...

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Abstract

An uninterruptible power supply (UPS) system includes at least two UPS modules having respective switchmode power converter circuits coupled in common to a current source / sink by respective conductors. The system further includes at least one differential mode inductor magnetically coupling the at least two conductors. For example, the switchmode power converter circuits may include respective DC / DC converter circuits coupled in common to a terminal of a DC power source, such as a battery, by the conductors. The differential mode inductors may be implemented using, for example, ferrite rings.

Description

technical field [0001] The present subject matter relates to power conversion apparatus and methods, and more particularly to uninterruptible power supply (UPS) apparatus and methods. Background technique [0002] UPS systems are commonly used in facilities such as data centers, medical centers, and industrial facilities. UPS systems may be used in such facilities to provide backup power to maintain operations in the event of a main utility power failure. These UPS systems typically have an "on-line" configuration that includes a rectifier and inverter coupled by a DC connection that is also coupled to an auxiliary power source such as a battery, fuel cell, or other energy storage device. Other configurations such as standby and line-interactive configurations may also be used. [0003] A UPS system may have a modular structure comprising two or more UPS modules, each of which may include, for example, a rectifier, an inverter and a DC / DC converter for connection to a batt...

Claims

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Application Information

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IPC IPC(8): H02J9/06G11C11/00H02M1/00H02M1/44
CPCH02M7/493H02J9/061H02M2001/123H02M1/123
Inventor J·D·布兰德梅耶J·欧利弗
Owner EATON CORP
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