2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)最新文献_第3页

A Concentrating Mini Solar Power System to Overcome the Market Share 聚光小型太阳能发电系统克服市场份额

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757772

Elsen Aydın, B. Tunçel, B. Akinoglu

引用次数: 0

Propagation Of Cracks in Standard Cell and Half-Cell Photovoltaic Technology 标准电池和半电池光伏技术中裂纹的扩展

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757766

Bouaichi Abdellatif, E. Chakir, G. Abdellatif, H. Elminor, C. Messaoudi

{"title":"Propagation Of Cracks in Standard Cell and Half-Cell Photovoltaic Technology","authors":"Bouaichi Abdellatif, E. Chakir, G. Abdellatif, H. Elminor, C. Messaoudi","doi":"10.1109/PVCon51547.2020.9757766","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757766","url":null,"abstract":"The inspection of PV systems installed in a semi-arid climate of Morocco indicates that cracks of solar cells, detected by EL thermography, represent a dominant degradation mode under these operating conditions. Indeed, solar cells are subjected to bending forces due to the effect of wind. To better understand the cracks propagation in standard cell and half-cell technology, under different mechanical loads, we used a 3D simulation. This allowed us to understand the response of each cell type and select the most resistant to mechanical stress as well. Two 3D finite element cells models were proposed. Each model represents a mini-module. In this investigation, different load intensities were applied. The result show that, under standard cell module the crack propagation is proportional to the applied mechanical load, which is not obvious for the half-cell module. The results obtained also show that the cracks propagate less in the half-cells. This is why the half-cell technology can be an alternative to increase the lifespan of PV module in arid and semi-arid regions.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"35 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120918576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comparative Evaluation of Rear Local Contact Patterns for P-Type Mono Crystalline Silicon PERC Solar Cell p型单晶硅PERC太阳能电池后部局部接触模式的比较评价

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757782

Hasan Asav, G. Bektaş, A. Keçeci, Gamze Kökbudak, B. Arıkan, R. Turan

{"title":"Comparative Evaluation of Rear Local Contact Patterns for P-Type Mono Crystalline Silicon PERC Solar Cell","authors":"Hasan Asav, G. Bektaş, A. Keçeci, Gamze Kökbudak, B. Arıkan, R. Turan","doi":"10.1109/PVCon51547.2020.9757782","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757782","url":null,"abstract":"The passivated emitter and rear cell (PERC) is an advantageous type of solar cell to reduce rear surface recombination [1] along with its improved back surface reflectivity [2]. Therefore, many research and developments have been taking place on this type of solar cell to increase the overall solar cell performance. In this study, different type of rear local contact opening patterns (line and dash) formed by industrial-type picosecond laser which has 532 nm wavelength with fixed laser contact opening (LCO) width on M2 p-type mono commercial blue wafers. Manufactured cells are investigated in terms of photovoltaic parameters depending on the rear metal fractions. We ablate rear dielectric passivation layer with 4 different LCO patterns by varying rear local contact pitches from 900 μm to 1200 μm by an increment of 100 μm using (1:1) dash pattern. Line pattern is used as reference pattern, which has 1500 μm line pitch and same contact width. Laser opening areas are analyzed by photoluminescence (PL) images as well as implied open circuit voltage (iVoc) measurements. Local contacts and formation of back surface field (BSF) has been analyzed by using scanning electron microscopy (SEM) for all types of LCOs after screen printing of aluminum paste. As a result, rear contact pattern with 3.19% metal fraction (1000 μm pitch) is found to be relatively more efficient than the others investigated in this study. When compared to reference line pattern, the optimized LCO pattern provides a gain in conversion efficiency of 0.35%, Voc of 6 mV and FF of 0.35 % on average.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"789 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117031779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Voltage Profile Enhancement Using Capacitor-less D-STATCOM to Increase PV Integration in Distribution Network Under Transient Cloud Conditions 利用无电容D-STATCOM增强暂态云条件下配电网的电压分布

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757791

W. Rohouma, R. Balog, A. Peerzada, M. Begovic

{"title":"Voltage Profile Enhancement Using Capacitor-less D-STATCOM to Increase PV Integration in Distribution Network Under Transient Cloud Conditions","authors":"W. Rohouma, R. Balog, A. Peerzada, M. Begovic","doi":"10.1109/PVCon51547.2020.9757791","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757791","url":null,"abstract":"Over the past decade, the emergence of Distributed Energy Resources (DERs) has significantly disrupted the traditional approach of having centralized plants that distribute electricity through an extensive transmission and distribution network. Given the proliferation of DERs in recent years, more importantly, the rise of grid-connected distributed photovoltaic (PV) systems and the implementation of the smart-grid concept, the electric utility industry of today is in the midst of an aggressive expansion and an unprecedented evolution. The stochastic nature of PV output has created new challenges in electric distribution systems' operation and maintenance. Of particular significance is the direct correlation between the PV power output and rapid voltage fluctuations. Reactive power compensation can be used to regulate the voltage profile on the network within the allowable limits set by the relevant standards. A capacitor-less distribution static synchronous compensator (D-STATCOM), based on a matrix converter (MC), is proposed to be used in low-voltage distribution networks. This technology is controlled using finite-set model predictive control (MPC); the compensator device can operate in various modes and can be deployed as needed in the low-voltage distribution network. Simulation results is presented to show the proposed technology's effectiveness in improving voltage profile in low-voltage distribution networks under transient cloud conditions.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133490435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concentrated Photovoltaics Using Shape-modified Nanospheres 利用形状修饰纳米球的聚光光伏

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757730

N. S. Esmaeilzad, Hande Ciftpinar, R. Turan, A. Bek

{"title":"Concentrated Photovoltaics Using Shape-modified Nanospheres","authors":"N. S. Esmaeilzad, Hande Ciftpinar, R. Turan, A. Bek","doi":"10.1109/PVCon51547.2020.9757730","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757730","url":null,"abstract":"Light management is one of the main functions of dielectric colloidal nanospheres (NSs), which is beneficial in photonic devices like solar cells (SCs). NSs can direct the broad incident light into several concentrated tighter foci, which results in improved photovoltaic conversion efficiency. Also, the NS arrays can be employed as an effective medium on the SC surface to decrease reflectance and enable better forward scattering. As a result, not only can uniform arrays of NSs on the surface of the SC behave as antireflection coatings, but they also act as micro-lenses, which are considered surface distributed light concentrators that can be utilized in the field of concentrated photovoltaics. The fabrication of NS-based light-trapping structures is cost-effective and simple compared to other options such as vacuum evaporated multilayer antireflection coatings. In this study, experimental results of shape modified NS structures resulting from annealing entail improved light harvesting and better efficiency in Si SCs. The light conversion efficiency of Si solar cells is demonstrated to enhance by more than 19% with shape adjustment of NS arrays.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134251717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sizing of Differential Power Processing Converters Based on In-Situ Meteorological Data for Non-Planar Photovoltaic Applications 基于原位气象数据的非平面光伏差动功率处理变流器尺寸研究

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757764

Morcos Metry, Sawsan Shukri, Lance Alpuerto, R. Balog

引用次数: 0

Investigation of Horizontal Solar Radiation Data Source in the World 世界水平太阳辐射数据源调查

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757803

R. Bawazir, N. Cetin

{"title":"Investigation of Horizontal Solar Radiation Data Source in the World","authors":"R. Bawazir, N. Cetin","doi":"10.1109/PVCon51547.2020.9757803","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757803","url":null,"abstract":"Photovoltaic (PV) power is the third global power capacity used after hydro and wind. Even though solar energy is abundant and within reach, this energy assessment confronts a big challenge in terms of obtaining measured data due to the limited and unevenly distributed ground-based meteorological stations. To overcome this issue, many studies resort to other sources of radiometric data. Some of the sources are based on satellites. As a result, there is a disagreement of readings compared with ground-based meteorological stations. Therefore, this paper attempts to mitigate the differences by proposing the nearest source compared to measured data. Four different sources (NASA POWER, PVGIS 5, Meteonorm software, and hybrid-based average data) are investigated. The measured data of stations is used as a reference in this study which has been collected from the World Radiation Data Centre (WRDC). The comparative study is made based on monthly average horizontal solar radiation using statistical methods for five continents. Twenty-eight distributed locations are examined. Based on the Global Performance Indicator (GPI), Meteonorm is a suitable data source for Asia and South American continents. In Africa, Europe, and North American continents, the solar radiation source depends on the target location.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125781408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low Cost, Stand-Alone, In-situ PV Curve Trace 低成本，独立，原位PV曲线跟踪

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757780

Safin Bayes, Sawsan Shukri, R. Balog

{"title":"Low Cost, Stand-Alone, In-situ PV Curve Trace","authors":"Safin Bayes, Sawsan Shukri, R. Balog","doi":"10.1109/PVCon51547.2020.9757780","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757780","url":null,"abstract":"The i-v characteristic curve provides information about the parameters and operation of a photovoltaic (PV) module to validate its performance and efficiency. A flexible and scalable i-v curve tracer was developed to measure this experimentally. It consisted of a source measuring unit (SMU), a relay board, and a computer hosting MATLAB running a custom script to control the curve-tracer setup. However, the system is expensive for many institutions, such as developing countries, where researchers may lack resources and funding. Therefore, this paper describes an improvement to reduce the cost by replacing the computer with a $35 Raspberry Pi and the MATLAB script with a free Python program. The SMU and the relay board are connected to the Raspberry Pi through a USB cable and an ethernet cable, respectively. The new software provides four modes of operation called F1, F2, F3, and F4. The first mode is the one-time test mode (F1), in which the user tests one or multiple PV modules. In addition to generating individual plots, the software generates a composite figure of all the selected PV module curves, useful for comparative studies. The second mode, F2, runs a time-sequenced test of F1, in which users test a set of PV modules for a specific duration in regular intervals. The next mode (F3) enables different testing interconnections by configuring relays based on the connections described in an excel file. The final mode, F4, is a time-sequenced version of F3, by which users can test all the configurations in excel for a specific duration at regular intervals.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0