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Fiber optic ring for bypass system in multi-cell power supply

A fiber optics, bypass system technology, used in circuits, irreversible DC power input to AC power output, electrical switches and other directions

Active Publication Date: 2016-07-13
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on power-up following a power outage of the multi-battery power supply, it is possible to initialize the bypass devices of the multi-battery power supply in a sleep condition in which all of the bypass devices are in the same state

Method used

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  • Fiber optic ring for bypass system in multi-cell power supply
  • Fiber optic ring for bypass system in multi-cell power supply
  • Fiber optic ring for bypass system in multi-cell power supply

Examples

Experimental program
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Embodiment Construction

[0025] Embodiments of a fiber optic ring for a bypass system of a multi-battery power supply are provided, wherein exemplary embodiments are discussed in detail below. Bypass devices in the power cells of the multi-battery power supply, each comprising one or more contactors, are connected to the central control via a fiber optic ring linking the power cells. The central control of the multi-battery power supply exchanges information with the bypass devices in the power cells regarding their respective contactor status during normal operation and at power-up. The fiber optic ring has a relatively high insensitivity to electromagnetic noise generated by the power cells of the power supply and is independent of high differences in voltage among the individual power cells. The fiber optic ring allows the state of the multi-battery power supply to be preserved after a total power outage.

[0026] The bypass device in the power cell of the multi-battery power supply comprises mult...

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Abstract

Embodiments of a bypass system for a multi-cell power supply are provided. An aspect includes a plurality of power cells, each of the plurality of power cells comprising a respective bypass device comprising one or more contactors. Another aspect includes a central control. Yet another aspect includes a fiber optic ring comprising a plurality of fiber optic links that connect the respective bypass device in each of the plurality of power cells and the central control in series, wherein the fiber optic ring starts and ends at the central control, and the central control is configured to communicate with the one or more contactors in the plurality of bypass devices via the fiber optic ring.

Description

Background technique [0001] The present disclosure relates generally to multi-battery power supplies, and more particularly to fiber optic rings for bypass systems for multi-battery power supplies. [0002] In certain applications, multi-battery power supplies utilize modular power cells to handle power between source and load. Such modular power cells can be applied to a given power source with various degrees of redundancy to improve the availability of the power source. E.g, figure 1 Various embodiments of a prior art power supply (eg AC motor drive) with nine such power cells are illustrated. figure 1 A power cell in is represented by a block with input terminals A, B and C and output terminals T1 and T2. exist figure 1 , a transformer or other multi-winding device 110 receives three-phase medium voltage power at its primary winding 112 and delivers the power to a load 130 (such as a three-phase AC motor). Groups of power cells connected in series (referred to herein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/32H02M5/458H02M7/00H02J3/46H02M7/493
CPCH02M1/32H02M5/458H02M7/003H02M7/493H02M7/49H02M1/0003H02M1/325H01H9/54
Inventor P.马拉佩勒V.麦克迈克尔P.W.哈蒙德
Owner SIEMENS AG