Designing Fault-Tolerant Photovoltaic Systems

Lin, Xue; Wang, Yanzhi; Pedram, Massoud; Kim, Jaemin; Chang, Naehyuck

doi:10.1109/mdat.2013.2288252

Cited by 27 publications

(6 citation statements)

References 11 publications

(10 reference statements)

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“…44 One of the critical components of the CMOS-embedded PV module is the algorithm. 32,33,[37][38][39] The algorithm first detects the presence of partial shading conditions and then, based on the presence of shaded PV cells, determines the configuration that minimizes the effects of partial shading conditions. For making the reconfigurable PV panel much smarter, the algorithm used by them should be sensitive enough to detect the presence of shaded PV cells in the panel.…”

Section: Discussion and Future Workmentioning

confidence: 99%

“…Besides that, the embedded computing system will also generate and send the reset and clock signal to all APS switches present in the reconfigurable PV module. Over the years, many different kinds of embedded systems are used, such as computers, 32,33,37 field programmable gate array, 38,39 and Raspberry PI. 42 Algorithm.…”

Section: Photovoltaics Embedded With Cmos Switchesmentioning

confidence: 99%

“…[18][19][20][21][22][23][24][25][26][27][28][29][30][31] A PV module embedded with complementary metal oxide semiconductor (CMOS) switches has recently been proposed as an alternative to the SP-based PV module with bypass diode. [32][33][34][35][36][37][38][39] Studies have shown that PV modules embedded with switches have better capability for dealing with partial shading, mismatch issues, and faulty conditions. 32,33,35,37 Additionally, such PV modules reconfigure in real-time (i.e., an number of PV cells connected in series × number of cells connected in parallel change), which enables creating a power island.…”

Section: Introductionmentioning

confidence: 99%

“…[32][33][34][35][36][37][38][39] Studies have shown that PV modules embedded with switches have better capability for dealing with partial shading, mismatch issues, and faulty conditions. 32,33,35,37 Additionally, such PV modules reconfigure in real-time (i.e., an number of PV cells connected in series × number of cells connected in parallel change), which enables creating a power island. 36 Among all switches, CMOS-based switches are ideal for creating a reconfigurable PV module, since they can be easily integrated with PV cells in a single die, i.e., monolithic CMOS-on-PV.…”

Section: Introductionmentioning

confidence: 99%

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Improving performance of photovoltaic panel by reconfigurability in partial shading condition

et al. 2020

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A photovoltaic (PV) panel operating in partial shading condition results in lowering its power efficiency. In a worst-case scenario, it can create a hotspot that can eventually cause a fire hazard. To address this issue, bypass diodes are connected across a group of PV cells having series-parallel (SP) configuration. Owing to the placement bypass diodes in the PV panel, it can circumvent unshaded PV cells. Hence, topologies such as total cross-tied (TCT), bridge link (BL), and honeycomb (HC) for PV panels are proposed besides SP to reduce the effect of partial shading. Each configuration demonstrated advantages over SP topology. However, many of these configurations lack a mechanism to isolate PV cells that are affected due to the hotspot. Recently developed complementary metal oxide semiconductor (CMOS)-embedded PV panel has been shown to offer many other benefits besides effectively dealing with shading conditions. We are comparing the performance of CMOS-embedded PV panel under various partial shading conditions with PV panel with fixed configuration topologies, such as SP, TCT, BL, and HC. SPICE-based equivalent PV modeling technique is used in this research to compare the maximum power generated in different topologies under changing partial shading conditions. Results show that CMOS-embedded PV panels are more efficient in coping with partial shading conditions compared to any other contemporary fixed topologies. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Discussion and Future Workmentioning

confidence: 99%

Section: Photovoltaics Embedded With Cmos Switchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Improving performance of photovoltaic panel by reconfigurability in partial shading condition

et al. 2020

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“…It also bypasses the defective module considering the power loss, which is more than the threshold value. However, it requires a massive number of switches and so false detection may happen between L‐L faults and temporary faults [22]. Silvestre et al.…”

Section: Introductionmentioning

confidence: 99%

Current indicator based fault detection algorithm for identification of faulty string in solar PV system

Chandrasekharan

Subramaniam

Natarajan

2021

IET Renewable Power Gen

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The maximum power generation in the solar photovoltaic (PV) array is reduced due to the abnormal conditions such as module mismatch, string faults and damage of the PV modules, which reduces the efficiency and reliability of the system. Conventional protection devices fail to detect the faults, which leads to protection issues and fire threats in the PV plants. This paper proposes a new fault detection algorithm to identify the faults in the PV array and the PV string. A simple analysis is developed for fault detection under different fault conditions, such as line-line (L-L) fault, line-ground (L-G) fault and short-circuit fault with multiple strings, and the values of their current indicator and threshold are predetermined. Based on these values, the proposed fault detection algorithm identifies the fault in the PV array and the PV string, with a reduced number of current sensing devices. The effectiveness of the proposed algorithm is tested and verified through MATLAB simulation and experimentation under various operating conditions of the solar PV plant. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Reconfigurable Photovoltaic Array Systems for Adaptive and Fault-Tolerant Energy Harvesting

Chang¹,

Pedram

Lee

et al. 2015

Nano Devices and Circuit Techniques for Low-Energy Applications and Energy Harvesting

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This chapter introduces a reconfigurable photovoltaic (PV) cell array for adaptive and fault-tolerant energy harvesting in view of component modeling, architectures, properties, and reconfigurable algorithms for partial shading and fault tolerance. On top of traditional PV cell array-based energy harvesting research, the dynamically reconfigurable PV cell array gives additional significant benefits in both efficiency and cost. This is a representative example of how electronics design automation contributes to various problems in other domains.

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Designing Fault-Tolerant Photovoltaic Systems

Cited by 27 publications

References 11 publications

Improving performance of photovoltaic panel by reconfigurability in partial shading condition

Improving performance of photovoltaic panel by reconfigurability in partial shading condition

Current indicator based fault detection algorithm for identification of faulty string in solar PV system

Reconfigurable Photovoltaic Array Systems for Adaptive and Fault-Tolerant Energy Harvesting

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