Fast detection of open-switch fault in cascaded H-bridge multilevel converter

被引：1
|
作者：
Shahbazi, M. [1 ]
Zolghadri, M. R. [1 ]
Khodabandeh, M. [1 ]
Ouni, S. [1 ]
机构：
[1] Sharif Univ Technol, CEPSMC, POB 11155-8639, Tehran, Iran
来源：
SCIENTIA IRANICA | 2018年 / 25卷 / 03期
基金：
美国国家科学基金会;
关键词：
Power-switch fault detection; Open-switch fault; Multilevel converter; Cascaded H-bridge converter Insulated Gate Bipolar Transistor (IGBT); VOLTAGE; SYSTEM; PWM; DIAGNOSIS; STRATEGY; RECONFIGURATION; INVERTERS; NETWORK;
D O I：
10.24200/sci.2017.4371
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cascaded H-bridge converter has been utilized recently in different high-power applications due to its modular and simple structure. In order to have a balanced operation after a fault occurrence in this converter, it is necessary to detect the switch fault and its location. In this paper, a fast power-switch fault detection method is presented to identify a fault and its location. Only one voltage measurement per phase is required by this method, and the fault detection is faster compared to the existing methods. Moreover, it is suitable for implementation on an FPGA device due to the use of simple math, relational, and state machine blocks. The proposed method is verified by computer simulations and FPGA-based experimental tests. (C) 2018 Sharif University of Technology. All rights reserved.
引用
收藏
页码：1561 / 1570
页数：10
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