A distinguishing method of open-circuit IGBT of three-level NPC inverter

For problem of large calculated amount of existing distinguishing method of open-circuit IGBT of three-level NPC inverter, all kinds of open-circuit states of IGBT were simulated, and the causes of bus neutral-point voltage deviation were analyzed, then a simple method to distinguish the open-circui...

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Main Authors: QIU Shiguang, LI Mei
Format: Article
Language:zho
Published: Editorial Department of Industry and Mine Automation 2014-09-01
Series:Gong-kuang zidonghua
Subjects:
Online Access:http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.09.023
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author QIU Shiguang
LI Mei
author_facet QIU Shiguang
LI Mei
author_sort QIU Shiguang
collection DOAJ
description For problem of large calculated amount of existing distinguishing method of open-circuit IGBT of three-level NPC inverter, all kinds of open-circuit states of IGBT were simulated, and the causes of bus neutral-point voltage deviation were analyzed, then a simple method to distinguish the open-circuit IGBT was proposed. The method achieves distinguishing of open-circuit IGBT by detecting bus neutral-point voltage and three-phase output voltage of inverter, which needs no extra hardware. The simulation results verify effectiveness of the method.
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spelling doaj.art-9f9ec9d4c936419eaa23be1bb8775bb92023-03-17T01:51:10ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2014-09-014099910210.13272/j.issn.1671-251x.2014.09.023A distinguishing method of open-circuit IGBT of three-level NPC inverterQIU ShiguangLI Mei0Department of Economics ManagemeFor problem of large calculated amount of existing distinguishing method of open-circuit IGBT of three-level NPC inverter, all kinds of open-circuit states of IGBT were simulated, and the causes of bus neutral-point voltage deviation were analyzed, then a simple method to distinguish the open-circuit IGBT was proposed. The method achieves distinguishing of open-circuit IGBT by detecting bus neutral-point voltage and three-phase output voltage of inverter, which needs no extra hardware. The simulation results verify effectiveness of the method.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.09.023three-level npc inverteropen-circuit igbtpower switch deviceneutral-point voltage balance
spellingShingle QIU Shiguang
LI Mei
A distinguishing method of open-circuit IGBT of three-level NPC inverter
Gong-kuang zidonghua
three-level npc inverter
open-circuit igbt
power switch device
neutral-point voltage balance
title A distinguishing method of open-circuit IGBT of three-level NPC inverter
title_full A distinguishing method of open-circuit IGBT of three-level NPC inverter
title_fullStr A distinguishing method of open-circuit IGBT of three-level NPC inverter
title_full_unstemmed A distinguishing method of open-circuit IGBT of three-level NPC inverter
title_short A distinguishing method of open-circuit IGBT of three-level NPC inverter
title_sort distinguishing method of open circuit igbt of three level npc inverter
topic three-level npc inverter
open-circuit igbt
power switch device
neutral-point voltage balance
url http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2014.09.023
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