Open-Circuit Fault Diagnosis in Neutral-Point-Clamped UPS Inverters with no Additional Sensors

被引：0

作者：

Caseiro, L. M. A. ^{[1
]}

Mendes, A. M. S. ^{[1
]}

机构：

[1] Univ Coimbra, Inst Telecomunicacoes, Dept Elect & Comp Engn, Coimbra, Portugal

来源：

IECON 2015 - 41ST ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2015年

关键词：

fault diagnosis; fault detection; fault location; multilevel; neutral-point-clamped; uninterruptible-power-supply; CONVERTERS; DRIVES;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The operating conditions of UPS inverters and the fact that the load is unknown lead to great difficulties in fault diagnosis. This paper proposes the use of a fault diagnosis algorithm based on estimated pole voltage error for UPS inverters based on the 3-level Neutral-Point-Clamped topology. This algorithm is independent from the load and is not affected by unbalanced three-phase operation. This algorithm provides very fast and reliable results and requires no additional sensors or hardware. Simulation results are presented to demonstrate the algorithm's speed and robustness.

引用

页码：2463 / 2468

页数：6

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