This paper demonstrates a statistical analysis approach, which uses T-test and F-test for identifying whether the crack has significant impact on total amount of power generated by photovoltaic (PV) modules. Electroluminescence (EL) measurements were performed scanning possible faults in examined PV Virtual Instrumentation (VI) LabVIEW software was applied to simulate theoretical IV curves. The approach classified only 60% cracks that significantly impacted

Software sustainability has been identified as one of the key challenges in development scientific and engineering software we move towards new paradigms research computing infrastructures. However, it is suggested that not well understood within community, which can led to ineffective inefficient efforts address concept or result its complete omission from system. This paper proposes a definition considers how be measured empirically design process systems.

Hot spotting is a reliability problem in photovoltaic (PV) panels where mismatched cell heats up significantly and degrades PV panel output-power performance. High temperature due to hot can damage the encapsulate lead second breakdown, both cause permanent panel. Therefore, development of two hot-spot mitigation techniques proposed using simple reliable method. spots examined system were inspected FLIR i5 thermal imaging camera. Multiple experiments have been tested during various...

In this article, we present the development of a novel technique that is used to enhance detection micro cracks in solar cells. Initially, output image conventional electroluminescence (EL) system determined and reprocessed using binary discreet Fourier transform (DFT) processing models. The size, position orientation, principally geometric properties EL image. On other hand, DFT has been analyse two-dimensional spectrum. consists structures all required frequencies, thus improving possible...

In this work, the authors present a new algorithm for detecting faults in grid‐connected photovoltaic (GCPV) plant. There are few instances of statistical tools being deployed analysis (PV) measured data. The main focus study is, therefore, to outline PV fault detection that can diagnose on DC side examined GCPV system based t ‐test method. For given set operational conditions, solar irradiance and module temperature, number attributes such as voltage power ratio strings using virtual...

The development of sustainable software has been identified as one the key challenges in field computational science and engineering. However, there is currently no agreed definition concept. Current definitions range from a composite, non-functional requirement to simply an emergent property. This lack clarity leads confusion, potentially ineffective inefficient efforts develop systems. aim this paper explore emerging sustainability engineering order contribute question, what...

The impact of photovoltaic (PV) hot-spots is assessed through the analysis 2580 polycrystalline silicon PV modules distributed across U.K. were categorized into eight different groups using percentage power loss. All modeled cumulative density function, state-of-the-art geographical mapping, and performance ratio (PR) analysis. Significantly, it was found that 92.15% affected by hot-spotted string are located in northern U.K., where effect low-temperature levels, heavy snow, hoarfrost more...

The document text similarity measurement and analysis is a growing application of Natural Language Processing. This paper presents the results using different techniques for semantic measurements in documents used safety-critical systems. research objective this work to measure degree equivalence multi-word sentences rules procedures contained on railway safety. These documents, with unstructured data formats, need be preprocessed cleaned before set Processing toolkits, Jaccard Cosine...

This study analyses the impact of micro cracks on photovoltaic (PV) module output power performance and energy production. Electroluminescence imaging technique was used to detect affecting PV modules. The experiment carried out ten different modules installed at University Huddersfield, United Kingdom. examined which contain shows large loss in comparing with theoretical predictions, where maximum is equal 80.73%. LabVIEW software simulate under real time long term data measurements.

This study proposes a fault detection algorithm based on the analysis of theoretical curves which describe behaviour an existing grid-connected photovoltaic (GCPV) system. For given set working conditions, number attributes such as voltage ratio (VR) and power (PR) are simulated using virtual instrumentation LabVIEW software. Furthermore, third-order polynomial function is used to generate two limits (high low limits) for VR PR ratios. The high compared with real-time long-term data...

In our research, we aim to evaluate the effectiveness of games-based learning within a computer aided design and manufacture undergraduate module. Although widely used in selection subject areas, there appears be limited application engineering technology. Its as or training tool, especially Mechanical Engineering area, has been unclear. This research follows on from previously presented novel approaches delivery education. Games-based potential enhance student experience process. order...

This paper presents a novel detection technique for inspecting solar cells' micro cracks. Initially, the cell is captured using electroluminescence (EL) method, then processed by proposed technique. The consists of three stages: first stage combines two images, image crack-free (healthy) cell, whereas second cracked solar-cell image. Both output images are into bit-by-bit gridding technique, which enables all bits in considered area cell. uses an OR gate between each examined bit both...

Abstract A novel approach to broadband log‐periodic antenna design is presented, where some of the most powerful evolutionary algorithms are applied and compared for optimal wire dipole arrays (LPDA) using Numerical Electromagnetics Code. The target achieve an with respect maximum gain, gain flatness, front‐to‐rear ratio ( F / R ) standing wave ratio. parameters LPDA optimized lengths, spacing between dipoles, diameters. Differential Evolution (DE), Particle Swarm (PSO), Taguchi, Invasive...

In this paper, a novel photovoltaic (PV) hot-spotting fault detection algorithm is presented. The implemented using the analysis of 2580 polycrystalline silicon PV modules distributed across U.K. evaluation hot-spots analyzed based on cumulative density function (CDF) modeling technique, whereas percentage power loss (PPL) and degradation rate are used to categorize into eight different categories. Next, CDF models predict possible affecting modules. developed evaluated three affected by...

This paper presents a design and development of Grid-Connected Photo Voltaic Virtual Instrumentation System (GCPV-VIS) which is intended to facilitate monitoring failure detection grid-connected photovoltaic plant using statistical methods. The approach has been validated an experimental database environment electrical parameters from 1.98 kip installed at the University Huddersfield, United Kingdom. There are few instances tools being deployed in analysis PV measured data. main focus this...

High-Performance Computing (HPC) and the ability to process large amounts of data are paramount importance for UK business economy as outlined by Rt Hon David Willetts MP at HPC Big Data conference in February 2014. However there is a shortage skills available training prepare expand workforce research development. Currently, acquired mainly students staff taking part HPC-related projects, MSc courses, dedicated centres such Edinburgh Universitys EPCC. There few universities teaching HPC,...