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System for protecting multiple DC voltage sources

一种电压源、电压逆变器的技术，应用在紧急保护电路装置、对故障电流起反应的保护、电气元件等方向，能够解决大操作损耗等问题

Active Publication Date: 2021-01-12
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, such protection systems lead to large operational losses in case of ground fault detection, since the voltage inverter is stopped and the generating unit no longer supplies DC voltage to the grid

Method used

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  • System for protecting multiple DC voltage sources
  • System for protecting multiple DC voltage sources
  • System for protecting multiple DC voltage sources

Examples

Experimental program
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Embodiment Construction

[0047] exist figure 1Among them, a unit 10 for generating an AC voltage comprises a voltage inverter 12 capable of converting a DC input voltage into an AC voltage having at least one phase, and a first input 16 and a second input 18, the inverter 12 includes an output 14 for each phase.

[0048] The generating unit 10 also comprises a plurality of DC voltage sources 20 connected in parallel between the two input terminals 16 and 18 of the inverter.

[0049] The generating unit 10 comprises a plurality of first electrical conductors 22 which further link each respective DC voltage source 20 to the first input 16, the first electrical conductors 22 being electrically linked to each other and to the first input via a first electrical line 24 16.

[0050] The generating unit 10 also comprises a plurality of second electrical conductors 26 for linking each respective DC voltage source 20 to the second input 18, the second electrical conductors 26 being electrically linked to eac...

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PUM

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Abstract

A protection system configured to protect plural DC voltage sources configured to be connected in parallel between first and second input terminals of a voltage inverter. The voltage inverter can convert a DC input voltage into an AC output voltage. Each DC voltage source is connected by a first electrical conductor to the first input terminal and by a second electrical conductor to the second input terminal. The protection system includes: for each DC voltage source, a first cut-off member and first detector of a defect of isolation of the first conductor with respect to an electrical ground, the first detector and associated first cut-off member connected in series between the corresponding DC voltage source and the first input terminal of the inverter; and a mechanism triggering, in event of detection of the isolation defect, the associated first cut-off member to open the electrical link corresponding to the first conductor.

Description

[0001] This divisional application is a divisional application with an application date of October 17, 2013, an application number of 201380054153.8, and an invention title of "System for Protecting Multiple DC Voltage Sources". technical field [0002] The invention relates to a system for protecting a plurality of direct voltage sources capable of being connected in parallel between a first and a second input of a voltage inverter capable of converting direct current (DC ) input voltage is converted into an alternating current (AC) output voltage, and each DC voltage source is connected to a first input terminal by a first conductor and input to a second input terminal by a second conductor. [0003] The invention also relates to a DC voltage generating unit comprising a voltage inverter, a plurality of DC voltage sources connected in parallel between the input terminals of the inverter, and a protection system for the plurality of DC voltage sources. [0004] The invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/16H02H7/20
CPCH02H3/16H02H7/20H02H7/10
Inventor J.斯特帕尼克S.蒂安E.多梅琼Y.卡杜克斯
Owner SCHNEIDER ELECTRIC IND SAS