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An Advanced Switch Failure Diagnosis Method and Fault Tolerant Strategy in Photovoltaic Boost Converter
Electric Power Components and Systems ( IF 1.7 ) Pub Date : 2021-05-08 , DOI: 10.1080/15325008.2021.1909182
Mohamed Ali Zdiri 1 , Mohsen Ben Ammar 1 , Badii Bouzidi 2 , Rabhi Abdelhamid 3 , Hsan Hadj Abdallah 1
Affiliation  

Abstract—The PV systems have increasingly displayed remarkable usefulness and interest, particularly in a wide range of industrial applications, such as industrial control systems, medical applications and hybrid vehicles. Due to the necessity of systems continuity requirement imposed by these applications, a special careful consideration should be granted to the boost converter reliability performance. Indeed, the boost converter reliability could be affected by a faulty operation essentially related to semiconductor switch used. In this respect, this paper proposes an advanced fast FDM with a FT strategy applied in boost converter PV systems in order to guarantee their continuity. By implementing the FDM and FT strategies on a dSpace real-time system, both types of OCF and SCF in boost converter switch are detected, identified and compensated. The proposed FDM is founded on the signals variations (increase or decrease) of the PV current, voltage and power as well as the duty cycle of the PV system. Accordingly, the PV system cost and complexity dimensions should tend to decrease due to the particular use of current and voltage sensors, dedicated to maintain the systems effective control. Additionally, for the purpose of the FT strategy which is applied under a fault appearance or occurrence, a redundant switch has been incorporated into the original boost converter in order to compensate the fault. Finally, the experimental results prove to confirm the high performance and capability of the proposed FDM and FT strategy in maintaining the PV system continuity.



中文翻译:

一种先进的光伏升压转换器开关故障诊断方法及容错策略

摘要-光伏系统越来越显示出显着的实用性和兴趣,特别是在广泛的工业应用中,例如工业控制系统、医疗应用和混合动力汽车。由于这些应用对系统连续性要求的必要性,应特别仔细考虑升压转换器的可靠性性能。事实上,升压转换器的可靠性可能会受到与所使用的半导体开关基本相关的故障操作的影响。在这方面,本文提出了一种采用 FT 策略的先进快速 FDM 应用于升压转换器 PV 系统,以保证其连续性。通过在 dSpace 实时系统上实施 FDM 和 FT 策略,可以检测、识别和补偿升压转换器开关中的两种类型的 OCF 和 SCF。提议的 FDM 建立在 PV 电流、电压和功率的信号变化(增加或减少)以及 PV 系统的占空比的基础上。因此,由于专门使用电流和电压传感器来维持系统的有效控制,光伏系统的成本和复杂性尺寸应该趋于降低。此外,为了在故障出现或发生时应用 FT 策略,在原始升压转换器中加入了一个冗余开关以补偿故障。最后,实验结果证明了所提出的 FDM 和 FT 策略在保持光伏系统连续性方面的高性能和能力。电压和功率以及光伏系统的占空比。因此,由于专门使用电流和电压传感器来维持系统的有效控制,光伏系统的成本和复杂性尺寸应该趋于降低。此外,为了在故障出现或发生时应用 FT 策略,在原始升压转换器中加入了冗余开关以补偿故障。最后,实验结果证明了所提出的 FDM 和 FT 策略在保持光伏系统连续性方面的高性能和能力。电压和功率以及光伏系统的占空比。因此,由于专门使用电流和电压传感器来维持系统的有效控制,光伏系统的成本和复杂性尺寸应该趋于降低。此外,为了在故障出现或发生时应用 FT 策略,在原始升压转换器中加入了冗余开关以补偿故障。最后,实验结果证明了所提出的 FDM 和 FT 策略在保持光伏系统连续性方面的高性能和能力。为了在故障出现或发生时应用FT策略,在原始升压转换器中加入了冗余开关以补偿故障。最后,实验结果证明了所提出的 FDM 和 FT 策略在保持光伏系统连续性方面的高性能和能力。为了在故障出现或发生时应用FT策略,在原始升压转换器中加入了冗余开关以补偿故障。最后,实验结果证明了所提出的 FDM 和 FT 策略在保持光伏系统连续性方面的高性能和能力。

更新日期:2021-06-03
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