Technological review of the instrumentation used in aerial thermographic inspection of photovoltaic plants

Gallardo-Saavedra, Sara; Hernández-Callejo, Luís; Duque-Pérez, Óscar

doi:10.1016/j.rser.2018.05.027

Cited by 112 publications

(41 citation statements)

References 45 publications

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“…This approach is often used in combination with unmanned aerial vehicles (UAVs) for large PV plants [22]. Aerial IR thermography is known to be a useful diagnostic technique that can assess performance of PV panels with higher accuracy and more quickly, however, is a bit more costly [31]. Yet, it is important to note that reliable and more cost-efficient methods have been proposed using a combination of both thermal imaging and visual cameras [32].…”

Section: Current Approaches and Opportunities For Pv Predictive Maintmentioning

confidence: 99%

PV System Predictive Maintenance: Challenges, Current Approaches, and Opportunities

et al. 2020

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Within the United States solar energy industry, there is a general motto of “set it and forget it” with solar energy. This notion is derived from much of the research and reliability studies around the photovoltaic (PV) panels themselves, not necessarily the PV system as a whole (including the inverter and other components). This implies that maintenance and regular monitoring is not needed. Yet many things can go wrong to cause the actual performance to deviate from the expected performance. If failures and/or unanticipated degradation issues go undetected, they will lead to reduced energy generation (and associated electricity credits) and/or potential loss of component warranty because of manufacturer turnover. Given the size of the problem and gaps with current solutions, the authors propose that PV system owners need an unbiased third-party off-the-shelf system-level predictive maintenance tool to optimize return-on-investment and minimize time to warranty claim in PV installations. This paper reviews the literature highlighting challenges, current approaches, and opportunities for PV predictive maintenance. The paper concludes with a call to action for establishing a collaborative agenda toward prioritizing PV predictive maintenance.

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Section: Current Approaches and Opportunities For Pv Predictive Maintmentioning

confidence: 99%

PV System Predictive Maintenance: Challenges, Current Approaches, and Opportunities

et al. 2020

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“…The integration of thermal sensors with drones opens up new possibilities for real-time aerial inspection in many fields. The substantial capture capability of the UAV platforms allows their application in thermal inspection of large areas (e.g., vegetation studies and precision agriculture [43][44][45], hydrological [46] or industrial inspections, such as those of photovoltaic farms [47,48]). The study of building envelopes is perhaps where the fusion of IRT and UAV technologies has the greatest potential [49][50][51][52].…”

Section: Aerial Irt Inspectionmentioning

confidence: 99%

IR Thermography from UAVs to Monitor Thermal Anomalies in the Envelopes of Traditional Wine Cellars: Field Test

et al. 2019

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Infrared thermography (IRT) techniques for building inspection are currently becoming increasingly popular as non-destructive methods that provide valuable information about surface temperature (ST) and ST contrast (delta-T). With the advent of unmanned aerial vehicle (UAV)-mounted thermal cameras, IRT technology is now endowed with improved flexibility from an aerial perspective for the study of building envelopes. A case study cellar in Northwest (NW) Spain is used to assess the capability and reliability of low-altitude passive IRT in evaluating a typical semi-buried building. The study comparatively assesses the use of a pole-mounted FLIR B335 camera and a drone-mounted FLIR Vue Pro R camera for this purpose. Both tested IRT systems demonstrate good effectiveness in detecting thermal anomalies (e.g., thermal bridges, air leakages, constructive singularities, and moisture in the walls of the cellar) but pose some difficulties in performing accurate ST measurements under real operating conditions. Working with UAVs gives great flexibility for the inspection, but the angle of view strongly influences the radiometric data captured and must be taken into account to avoid disturbances due to specular reflections.

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“…Aerial thermography with Unmanned Aerial Vehicles (UAV) is considered as a low-cost effective method for online surveillance of PV system performance [96]. The method can be considered as a useful and less time-consuming diagnostic method for PV plant performance compared with conventional fault diagnostic methods.…”

Section: Image Processing In Pv Fault Diagnosticsmentioning

confidence: 99%

Review on Methods of Fault Diagnosis in Photovoltaic System Applications

Syafaruddin¹,

Zinger²

2019

JESTR

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Recently, detection and identification of faults in photovoltaic (PV) system applications have been attracting researchers worldwide. Some of them have investigated the causes of potential faults, have worked on how to monitor and identify the faults through fault diagnosis, and have elaborated on how to develop problem-solving methods for the early detection of faults in PV system operations. This paper attempts to provide information comprehensively from the previous research. It summarizes types of faults, methods used in early fault identification and monitoring, and PV fault prevention and protection systems. The paper also investigates future trends in PV system fault diagnosis which include real-time implementation. The paper is expected to bring new perspective about the literature associate with fault studies in PV systems. This survey will be beneficial for the future discussion on how to provide comprehensive solutions for PV system fault problems. It will help avoid research repetition on similar topics and focus on the improvement and performance development of PV fault diagnosis methods.

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Technological review of the instrumentation used in aerial thermographic inspection of photovoltaic plants

Cited by 112 publications

References 45 publications

PV System Predictive Maintenance: Challenges, Current Approaches, and Opportunities

PV System Predictive Maintenance: Challenges, Current Approaches, and Opportunities

IR Thermography from UAVs to Monitor Thermal Anomalies in the Envelopes of Traditional Wine Cellars: Field Test

Review on Methods of Fault Diagnosis in Photovoltaic System Applications

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