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
收藏
页码：2463 / 2468
页数：6
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