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Auto adjusting balancer apparatus

A technology of equipment and winding, applied in the field of power converter equipment

Pending Publication Date: 2019-10-29
EATON INTELLIGENT POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such conventional balancer circuits can generate undesired ripple current even when the load is unbalanced

Method used

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  • Auto adjusting balancer apparatus
  • Auto adjusting balancer apparatus
  • Auto adjusting balancer apparatus

Examples

Experimental program
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Embodiment Construction

[0022] 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 only the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey to those skilled in the art. convey the scope of the inventive subject matter. In the drawings, like numerals indicate like items. It will be understood that when an item is referred to as being "connected" or "coupled" to another item, it can be directly connected or coupled to the other item or intervening items may be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting o...

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Abstract

The theme of the invention is to provide an auto adjusting balancer apparatus, and the invention discloses an apparatus. The apparatus includes a string of serially-connected energy storage devices, astring of serially-connected windings on at least one core and having a first medial node coupled to a first medial node of the string of serially-connected energy storage devices, and first and second switches configured to connect first and second end nodes of the string of serially-connected storage devices to respective first and second end nodes of the string of serially-connected energy storage devices. A control circuit is configured to operate the first and second switches at the same duty cycle.

Description

[0001] related application [0002] This application is part of U.S. Patent Application Serial No. 15 / 467,475, filed March 23, 2017, entitled "POWER CONVERTER APPARATUS AND METHODS USING ADAPTIVE NODEBALANCING" The application is continued and this patent application is hereby incorporated by reference in its entirety. Background technique [0003] The subject matter of the present invention relates to electrical equipment, and more particularly to power converter equipment. [0004] Power converter equipment, such as uninterruptible power supply (UPS) systems, grid-tie inverters, etc., typically includes an inverter that receives power from a DC link. The inverter may produce a single-phase or three-phase output referenced to neutral, and the DC link may include first and second busses having respective positive and negative voltages with respect to neutral. [0005] Unbalanced loads can cause DC bus unbalance problems in three-phase inverter systems. Specifically, one pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/483
CPCH02M7/483H02M7/4835H02M7/487H02M1/32H02M7/4833
Inventor G·W·小奥顿
Owner EATON INTELLIGENT POWER LTD