A New Hybrid Cascaded Switched-Capacitor Reduced Switch Multilevel Inverter for Renewable Sources and Domestic Loads

Rezaei, Mohammad Amin; Nayeripour, Majid; Hu, Jiefeng; Band, Shahab S.; Mosavi, Amir; Khooban, Mohammad‐Hassan

doi:10.1109/access.2022.3146256

Cited by 25 publications

(13 citation statements)

References 47 publications

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“…In this section, fault detection and fault location detection are performed for the inverter presented in [14]. For this purpose, five different scenarios were considered, each scenario representing a fault that occurred in a switch.…”

Section: Resultsmentioning

confidence: 99%

“…v. The worst and most common type of failure in semiconductor components is the short-circuit failure [10], which causes serious damage to the system, therefore this research focuses on the short-circuit failure of the components. This paper is a continuation of our previous work [14], which includes more details on the operation of the proposed multilevel inverter (MLI). This 13-level CSCMLI inverter is shown in Figure 1(a).…”

Section: Introductionmentioning

confidence: 94%

“…This article is a continuation of the 13-level inverter [14], where one of the open issues was the investigation of the fault tolerance of CSCMLI, and this article has tried to investigate this issue to some extent. There are still many issues related to the study of this inverter that will be investigated in the future.…”

Section: Open Questionsmentioning

confidence: 99%

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A Fault-Tolerant Cascaded Switched-Capacitor Multilevel Inverter for Domestic Applications in Smart Grids

et al. 2022

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Cascaded multilevel inverters (MLIs) generate an output voltage using series-connected power modules that employ standard configurations of low-voltage components. Each module may employ one or more switched capacitors to double or quadruple its input voltage. The higher number of switched capacitors and semiconductor switches in MLIs compared to conventional two-level inverters has led to concerns about overall system reliability. A fault-tolerant design can mitigate this reliability issue. If one part of the system fails, the MLI can continue its planned operation at a reduced level rather than the entire system failing, which makes the fault tolerance of the MLI particularly important. In this paper, a novel fault location technique is presented that leads to a significant reduction in fault location detection time based on the reliability priority of the components of the proposed fault-tolerant switched capacitor cascaded MLI (CSCMLI). The main contribution of this paper is to reduce the number of MLI switches under fault conditions while operating at lower levels. The fault-tolerant inverter requires fewer switches at higher reliability, and the comparison with similar MLIs shows a faster dynamic response of fault detection and reduced fault location detection time. The experimental results confirm the effectiveness of the presented methods applied in the CSCMLI. Also, all experimental data including processor code, schematic, PCB, and video of CSCMLI operation are attached.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

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A Fault-Tolerant Cascaded Switched-Capacitor Multilevel Inverter for Domestic Applications in Smart Grids

et al. 2022

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“…Using an appropriate CB model and adapting a fast fault detection method with a suitable AI method, the degradation may be predicted, which will evaluate the CB's reliability, peak current, and maximum stored energy. This manuscript is a sequel to the 13-level inverter [12], which aims to apply long short-term memory (LSTM) to sudden faults. Hochreiter and Schmidhuber first proposed the deep learning method in 1997 [13].…”

Section: Introductionmentioning

confidence: 99%

Adaptation of a Real-Time Deep Learning Approach With an Analog Fault Detection Technique for Reliability Forecasting of Capacitor Banks Used in Mobile Vehicles

et al. 2022

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The reliability of DC-link capacitor-banks (CBs) encounters many challenges due to their usage in electric vehicles. Heavy shocks may damage the internal capacitors without shutting down the CB. The fundamental development obstacles of CBs are: lack of considering capacitor degradation in reliability assessment, the impact of unforeseen sudden internal capacitor faults in forecasting CB lifetime, and the faults consequence on CB degradation. The sudden faults change the CB capacitance, which leads to reliability change. To more accurately estimate the reliability, the type of the fault needs to be detected for predicting the correct post-fault capacitance. To address these practical problems, a new CB model and reliability assessment formula covering all fault types are first presented, then, a new analog fault-detection method is presented, and a combination of online-learning long short-term memory (LSTM) and faultdetection method is subsequently performed, which adapt the sudden internal CB faults with the LSTM to correctly predict the CB degradation. To confirm the correct LSTM operation, four capacitors degradation is practically recorded for 2000-hours, and the off-line faultless degradation values predicted by the LSTM are compared with the actual data. The experimental findings validate the applicability of the proposed method. All experimental codes-data are attached.

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“…Over the past few decades, switched hybrid systems received much attention because of their generalized nature and their applications in several real processes, namely robotics, power electronics, chemical processes, network systems, aircraft, DC/DC converters and so on [1], [2]. They are defined by a finite state automaton and a finite number of dynamical subsystems (modes).…”

Section: Introductionmentioning

confidence: 99%

Sensor Fault Tolerant Control for Hybrid Systems With Sinusoidal Disturbance

2022

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This paper aims to design of an active fault-tolerant control AFTC of switched systems in the presence of sensor fault and periodic disturbances. AFTC requires sensor fault estimation. Thus, a databased projection approach is proposed based on performance measures that allow fault estimation without relying on mathematical models and fault assumptions. A new switching control strategy is proposed for fault compensation and recovering the desired performances. These techniques integrate a bank of controllers, corresponding to a set of partial models to design a set of switching control laws, compensating for the fault effect and attenuating the disturbance. A new linear matrix inequality based on Lyapunov stability analysis is proposed to compute control gains. This technique allows finding the optimal values of the control gains matrices, which ensure both sensor fault compensation and disturbance attenuation. A comparative study of the proposed strategy with existing work is carried out to show the effectiveness of the designed fault-tolerant control.

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A New Hybrid Cascaded Switched-Capacitor Reduced Switch Multilevel Inverter for Renewable Sources and Domestic Loads

Cited by 25 publications

References 47 publications

A Fault-Tolerant Cascaded Switched-Capacitor Multilevel Inverter for Domestic Applications in Smart Grids

A Fault-Tolerant Cascaded Switched-Capacitor Multilevel Inverter for Domestic Applications in Smart Grids

Adaptation of a Real-Time Deep Learning Approach With an Analog Fault Detection Technique for Reliability Forecasting of Capacitor Banks Used in Mobile Vehicles

Sensor Fault Tolerant Control for Hybrid Systems With Sinusoidal Disturbance

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