An Intelligent-Based Fault-Tolerant System for Solar-Fed Cascaded Multilevel Inverters

Published on Sep 1, 2018in IEEE Transactions on Energy Conversion4.61
· DOI :10.1109/TEC.2017.2786299
Albert Alexander Stonier1
Estimated H-index: 1
(Kongu Engineering College),
Brad Lehman29
Estimated H-index: 29
(NU: Northeastern University)
This paper presents an intelligent-based fault-tolerant system for a solar photovoltaic (PV) inverter. Artificial neural network based controller is used to monitor, detect, and diagnose the faults in solar PV panels, battery, semiconductor switches, and inverters. The cascaded multilevel inverter is connected across the combination of solar PV panel and battery for dc–ac conversion. The major advantage of the proposed topology is that it can deliver power from source to the load even under fault and partial shaded conditions. The paper also reviews on various faults in the solar PV energy conversion process and provides suitable solutions for each circumstance. Simulations are undertaken in MATLAB 2016a/Simulink and experimental investigation is carried out for a 3 kWp solar PV system. The results have proven that the system is capable to deliver power in spite of faulty environments. The comparison and discussion of the results were made to show the effectiveness of the proposed system.
  • References (22)
  • Citations (3)
Published on Nov 1, 2016in IEEE Transactions on Industrial Electronics7.50
Seok-Min Kim3
Estimated H-index: 3
(Ajou University),
June-Seok Lee13
Estimated H-index: 13
Kyo-Beum Lee31
Estimated H-index: 31
To increase the fault tolerance for cascaded H-bridge multilevel inverters (CHMIs) based on level-shifted pulse width modulation (LS-PWM), a modified LS-PWM method is proposed for the inverters operating under faulty conditions. To cover both open- and short-device fault cases, two types of switching scheme are included in this PWM method. With this PWM method, the neutral shift can be applied as fault-tolerant control for CHMIs based on LS-PWM. Finally, three-phase-balanced line-to-line voltage...
Hamed Nademi7
Estimated H-index: 7
Anandarup Das13
Estimated H-index: 13
(IITD: Indian Institute of Technology Delhi)
+ 1 AuthorsLars Norum18
Estimated H-index: 18
(NTNU: Norwegian University of Science and Technology)
This paper investigates a new circuit topology of the modular multilevel converter (MMC) for deploying in photovoltaic (PV) distributed generation systems. In the conventional MMC, two arm inductors are placed in each phase to limit the circulating current. In the proposed topology, the inductors are replaced by a transformer. The proposed circuit gives a 50% reduction in the voltage rating of the power devices and the capacitor size in comparison with the basic MMC topology. The required dc-lin...
Published on Apr 1, 2016in Renewable & Sustainable Energy Reviews10.56
Albert Alexander S1
Estimated H-index: 1
(Kongu Engineering College)
In this paper, the power quality improvement techniques with respect to various modulation algorithms for the solar Photovoltaic (PV) inverter are reviewed. In power quality, harmonics are an important concern in all the utility sectors. The factors that contribute the harmonic distortion on distribution systems include increased application of capacitors and non-linear devices. In order to improve the power quality and also to maintain stable power supply performance, an inverter topology with ...
Published on Apr 1, 2016 in MELECON (Mediterranean Electrotechnical Conference)
Sunil Rao2
Estimated H-index: 2
(ASU: Arizona State University),
David Ramirez Dominguez3
Estimated H-index: 3
(ASU: Arizona State University)
+ 8 AuthorsYoshitaka Morimoto1
Estimated H-index: 1
Monitoring utility-scale solar arrays was shown to minimize cost of maintenance and help optimize the performance of the array under various conditions. In this paper, we describe the design of an 18 kW experimental facility that consists of 104 panels fitted with smart monitoring devices. Each of these devices embeds sensors, wireless transceivers, and relays that enable continuous monitoring, fault detection, and real-time connection topology changes. The facility enables networked data exchan...
Published on Dec 1, 2015in IEEE Transactions on Industrial Electronics7.50
Madhukar Rao A1
Estimated H-index: 1
(IITH: Indian Institute of Technology, Hyderabad),
K. Sivakumar14
Estimated H-index: 14
(IITH: Indian Institute of Technology, Hyderabad)
In this paper, a fault-tolerant single-phase five-level inverter configuration is proposed for photovoltaic (PV) generation systems. Conventional two-level inverters are popularly used in PV applications, but these inverters provide the output voltage with considerable harmonic content. One of the efficient ways to improve the power quality of PV generation systems is to replace a two-level inverter with a multilevel inverter. Conventional multilevel inverters reduce total harmonic distortion an...
Published on Nov 1, 2015
Muhammet Biberoglu1
Estimated H-index: 1
(Yalova University),
Kayhan Ince , Filiz Karaosmanog # lu18
Estimated H-index: 18
(ITU: Istanbul Technical University)
Globally increasing energy demand, running short of fossil fuels and researches for finding environment friendly choices strengthen a solution of local electricity production, especially from renewable energy sources. In this type of systems, inverters play a key role by providing power transforms. Multilevel inverters can achieve very low total harmonic distortion (THD) values at low switching frequencies without using any filtering units when compared with classic two-level inverters. However,...
Published on Nov 1, 2015
V. Fernão Pires18
Estimated H-index: 18
D. Foito2
Estimated H-index: 2
Tito G. Amaral11
Estimated H-index: 11
(UC: University of Coimbra)
In grid-connected photovoltaic systems (PV) the inverter is a fundamental component. In fact, a fault in a switch of this power converter could result in an important system malfunction. Thus, fault detection and diagnosis of this fault type is fundamental to overcome this problem. This paper proposes a fault detection diagnosis for the T-type three level inverter. This inverter presents characteristics such as output voltage multilevel and good capability to work in fault tolerant mode. The pro...
Published on May 1, 2015in IEEE Journal of Photovoltaics3.40
Mohammed Khorshed Alam8
Estimated H-index: 8
(UofU: University of Utah),
Faisal H. Khan16
Estimated H-index: 16
(UofU: University of Utah)
+ 1 AuthorsJack David Flicker9
Estimated H-index: 9
(SNL: Sandia National Laboratories)
Three major catastrophic failures in photovoltaic (PV) arrays are ground faults, line-to-line faults, and arc faults. Although there have not been many such failures, recent fire events on April 5, 2009, in Bakersfield, CA, USA, and on April 16, 2011, in Mount Holly, NC, USA, suggest the need for improvements in present fault detection and mitigation techniques, as well as amendments to existing codes and standards to avoid such accidents. This review investigates the effect of faults on the ope...
Published on Jan 1, 2015in Iet Renewable Power Generation3.60
Albert Alexander2
Estimated H-index: 2
(Kongu Engineering College),
Manigandan Thathan2
Estimated H-index: 2
(P A College of Engineering)
The design of control circuit for a solar fed cascaded multilevel inverter to reduce the number of semiconductor switches is presented in this study. The design includes ‘binary’, ‘trinary’ and ‘modified multilevel connection’ (MMC)-based topologies suitable for varying input sources from solar photovoltaic's (PV). In binary mode, 2 N s +1 − 1 output voltage levels are obtained where Ns is the number of individual inverters. This is achieved by digital logic functions which includes counters, fl...
Published on Oct 1, 2014in IEEE Transactions on Industrial Electronics7.50
Behrooz Mirafzal15
Estimated H-index: 15
(KSU: Kansas State University)
Inverters play key roles in motor drives, flexible power transmissions, and recently grid-tied renewable energy generation units. Therefore, availability and reliability of inverters have become increasingly important. Following early stage fault detections in inverters, remedial actions can extend normal operation of inverters and, in some cases, derate the system to prevent unexpected shutdowns. A remedial action typically contains a combination of hardware and software reconfigurations. The m...
Cited By3
Published on Mar 1, 2019in IEEE Transactions on Energy Conversion4.61
Md. Rabiul Islam9
Estimated H-index: 9
(UOW: University of Wollongong),
A. M. Mahfuz-Ur-Rahman1
Estimated H-index: 1
(UOW: University of Wollongong)
+ 1 AuthorsDanny Sutanto28
Estimated H-index: 28
(UOW: University of Wollongong)
More than 170 countries have already established renewable energy targets to meet their national increasing energy demand and also to keep their environment sustainable. Due to a number of features, the use of the multi-megawatt solar photovoltaic (PV) power plants is becoming the preferred choice for escalating and updating the power systems all over the world. Moreover, the solar PV power plant is also the first choice for meeting rapidly growing demands; as it can be installed relatively quic...
Published on Dec 1, 2018
Sameen Ahmad (Jamia Millia Islamia), Nabeel Hasan (Jamia Millia Islamia)+ 2 AuthorsAhteshamul Haque5
Estimated H-index: 5
(Jamia Millia Islamia)
Photovoltaic monitoring is essential in all kinds of systems for its efficient and optimal working. Even after development of modern protection devices, a lot of faults remain undetected. This paper develops a monitoring and detection algorithm for various faults and operating conditions in single phase PV system. The algorithm is developed using wavelet transform and pattern recognition and classification abilities of machine learning techniques. Discrete wavelet transform is used for extractin...
Published on Aug 1, 2018
Pablo Montero Robina (University of Seville), Francisco Gordillo16
Estimated H-index: 16
(University of Seville)
This paper presents an approach to control a grid-connected, five-level, diode-clamped converter (DCC) with solar arrays directly connected to each capacitor of the dc-link, On one hand, the control of such converters is challenging as the voltage imbalance among the capacitor may affect the power controller. On the other hand, when dealing with solar arrays, the dc voltage is a key point considering that the efficiency of the array highly depends on it. This article presents a solution where bo...