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

P50/P90 Analysis of a Solar Photovoltaic Plant in METU NCC Using the Empirical Method METU NCC太阳能光伏电站P50/P90的实证分析

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757770

Deniz Gören, O. Taylan

{"title":"P50/P90 Analysis of a Solar Photovoltaic Plant in METU NCC Using the Empirical Method","authors":"Deniz Gören, O. Taylan","doi":"10.1109/PVCon51547.2020.9757770","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757770","url":null,"abstract":"Large investments in renewable energy systems have some financial risks, and energy exceedance probabilities are required to find the expected range of energy yield values. In this study, P50/P90 analysis was done for a 1 MWp solar photovoltaic (PV) power plant in METU NCC using the System Advisor Model (SAM) software. Three different transposition models were used, which are the isotropic sky-diffuse, HDKR, and Perez models. Photovoltaic Geographical Information System-Surface Solar Radiation Dataset Heliosat (PVGISSARAH) database was used as the long-term satellite-based data, which includes the time period 2005-2016 with hourly time resolution, and three different typical meteorological year (TMY) datasets were used to compare the results with P50 values. Actual energy yield data of the years 2016 and 2017 were also compared. Interannual variability of global horizontal irradiation (GHI) was found as about 2.21%. According to the comparison of TMY and P50 values, it was found that average TMY underpredicted the annual GHI by 5.15%, and the energy yield values by 6.77%, 6.86%, and 6.83% for the isotropic, HDKR, and Perez models, respectively. Normal distribution assumption was also compared with the empirical method, and P50 value was underpredicted by 0.43% and 0.93% on average for GHI and energy yield, respectively. On the other hand, Normal CDF overpredicted P90 values than the empirical CDF by 2.61% and 3.93% for GHI and the energy yield, respectively. The overall uncertainty of energy yield was found as about 7.08%. The levelized cost of electricity (LCOE) also varied by 3.50% on average, and the non-exceedance probability values were obtained with respect to the energy yield.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"185 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":"127132281","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

A Grid-Connected Photovoltaic Power Conversion System with Solid-State Transformer 一种带固态变压器的并网光伏电力转换系统

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757798

A. Kasse, N. Kabache, S. Moulahoum

引用次数: 0

Designing of an On-Grid and Off-Grid PV System with Battery 电池并网和离网光伏系统的设计

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757789

Eyup Taymur, R. Bawazir, N. Cetin

{"title":"Designing of an On-Grid and Off-Grid PV System with Battery","authors":"Eyup Taymur, R. Bawazir, N. Cetin","doi":"10.1109/PVCon51547.2020.9757789","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757789","url":null,"abstract":"This paper presents a control methodology for small power Photovoltaic (PV) system which can work off-grid and on-grid considering the amount of household energy consumption. The system components are 20 PV panels with 250 W and 8 batteries with 55 Ah. In this study, the design of the PV system is not like classic off-grid or on-grid PV systems. It depends on the grid up to the minimum level due to the different operating characteristics at four different periods of a day. The required capacities of the batteries are also maintained at a minimum level through an improved control method. The control unit of the system measures the consumption of the loads, the charge level of the batteries, and the grid constantly. So, the batteries are being charged only for a few hours in the morning and they are only being discharged in the evening peak hours. This control unit provides energy management. The Fuzzy logic is implemented to improve the performance of the control unit. As the result, the system cost and payback period are reduced with this approach. It is possible to provide more successful system management according to the classic control method.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"20 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":"116626362","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

New Decision Tree Controller for MPPT Based on Fuzzy Logic Controller Data 基于模糊逻辑控制器数据的MPPT决策树控制器

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757758

R. Benkercha, S. Moulahoum, B. Taghezouit

{"title":"New Decision Tree Controller for MPPT Based on Fuzzy Logic Controller Data","authors":"R. Benkercha, S. Moulahoum, B. Taghezouit","doi":"10.1109/PVCon51547.2020.9757758","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757758","url":null,"abstract":"One of the main parts of the grid-connected PV system is the DC/DC boost converter which several research studies aim to improve. This component is commanded by a control algorithm which allows it to identify and track the maximum power point of the PV array throughout any weather conditions. Several approaches in the literature are proposed to accomplish this task, among the well-known, the intelligent commands such as Fuzzy Logic Controller (FLC). although FLC has many advantages such as convergence time, precision, efficiency, etc. there are always some drawbacks like the complexity of the controller, the hard algorithm implementation. For this purpose, a new approach has been proposed, using the FLC dataset retrieved from the simulation to build a decision tree model (DTM) obtaining both advantages of FL and DTM. Therefore, 66% of the data set will be allocated to the learning process and the rest is for the model test. The learning process is performed based on the C4.5 algorithm, where splitting criteria used to form the tree is called the gain ratio, this one is applied over the data set recursively to find the best model that fittest with FLC data. A validation step was carried out to verify the performances of the model by using new data unseen by the learning process. Lastly, the results have shown that the DT model has a high correlation with the FLC combining both advantages of the two approaches, moreover, the new model has compared with P&O and PID controllers and shown high effectiveness.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"24 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":"121536501","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

Structural Performance of An Existing Building Roof Subjected to Additional PV Panel Load 现有建筑屋顶在附加光伏板荷载下的结构性能

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757801

F. Mostofi, Onur Behzat Tokdemir, V. Toğan

引用次数: 1

Quality Assessment of On-site Solar Radiation Data and Estimating Global Tilted Irradiation in Middle East Technical University Northern Cyprus Campus 中东技术大学北塞浦路斯校区现场太阳辐射数据质量评估及全球倾斜辐射估算

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757771

Deniz Gören, O. Taylan

{"title":"Quality Assessment of On-site Solar Radiation Data and Estimating Global Tilted Irradiation in Middle East Technical University Northern Cyprus Campus","authors":"Deniz Gören, O. Taylan","doi":"10.1109/PVCon51547.2020.9757771","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757771","url":null,"abstract":"Financial institutions require bankable datasets to guarantee investments in large-scale solar energy projects, reducing the overall uncertainty of energy yield estimates. Long-term satellite-based data is mostly available globally; however, their systematic errors and bias should be removed by integrating quality-checked ground measurements if available. In this study, a quality assessment was done to detect erroneous/ missing data points using several quality-control tests. In METU NCC, global horizontal irradiation (GHI), direct normal irradiation (DNI), and global tilted irradiation (GTI) were recorded since 2010, 2013 and 2016, respectively. Physical threshold and quality envelope tests revealed that lower-than- expected GHI values were measured in some periods. Thus, erroneous GHI data was estimated using the Erbs model and measured DNI data. While up to 2 hours of missing GHI data were filled by linear interpolation, more extended missing data were filled by estimated GHI. Both measured and constructed GHI data were compared with satellite-based GHI data downloaded from the Photovoltaic Geographical Information System (PVGIS) for the time period 2010-2016. The results indicated that the average relative root-mean-square error (rRMSE) of daily total GHI reduced from 34.63% to 17.77% after the data filing process. The rRMSE decreased to 8.78% for the annual mean daily total GHI data. Additionally, GTI was estimated using the isotropic sky-diffuse model, and it was compared with measured GTI. RMSE of daily total estimated GTI was 22.41%, whereas satellite-based GTI had an RMSE of 20.81%. Finally, energy yield was estimated for 1 MWp solar photovoltaic (PV) plant using satellite-based and estimated GTI.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"57 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":"132244214","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

Using Renewable Energy on Electric Vessels in Coastal Regions 沿海地区电动船舶使用可再生能源

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757767

Caner Pense, B. Akinoglu

引用次数: 0

Device Characterization of Thermally Evaporated CdS/CdZnTe Thin Films for Solar Cell Applications 太阳能电池用热蒸发CdS/CdZnTe薄膜的器件特性

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757765

C. D. Balbasi, M. Parlak

引用次数: 1

Nine Years Long Term Performance and Degradation Assessment of Two On-Grid PV Systems 两个并网光伏系统的9年长期性能与退化评估

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757725

T. Ozden, Ensar Mesut Ozgun, Bedirhan Keles, B. Akinoglu

引用次数: 0

Magnetron Sputtering Deposition of Sb2Se3 Thin Films: Physical Property Characterizations and Its Relevance for Photovoltaics 磁控溅射沉积Sb2Se3薄膜:物理性质表征及其与光伏的相关性

2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon) Pub Date : 2020-11-30 DOI: 10.1109/PVCon51547.2020.9757806

S. Gundogan, L. Ozyuzer, G. Aygun, A. Cantas

{"title":"Magnetron Sputtering Deposition of Sb2Se3 Thin Films: Physical Property Characterizations and Its Relevance for Photovoltaics","authors":"S. Gundogan, L. Ozyuzer, G. Aygun, A. Cantas","doi":"10.1109/PVCon51547.2020.9757806","DOIUrl":"https://doi.org/10.1109/PVCon51547.2020.9757806","url":null,"abstract":"The absorber layer is a significant part of the solar cell configuration because of its role in determining the efficiency. Since the properties of the chalcogenides have been studied intensively, the Sb2Se3 material has come into prominence. In thin film technology, the most effective ways of increasing the performance are the rate of photon absorption, long material life, carrier efficiency and the quality of the interface. Sb2Se3 gets more attention than others due to its optoelectronic properties. Sb2Se3 has a suitable band gap (Eg), long term material stability, and a relatively simple composition with non-toxic and earth abundant elements. All these features make Sb2Se3 a promising candidate for use as an absorber layer in thin film photovoltaics (PVs). In this study, Sb2Se3 films have been grown with DC magnetron sputtering method onto soda lime glass (SLG) substrates with different time durations. Morphological, structural, and optical properties of Sb2Se3 thin films were systematically investigated as a function of the thickness for photovoltaic applications. Our results indicate that the optical transmission, absorption behavior, and bandgap energy are strongly dependent on the thickness of the film.","PeriodicalId":277228,"journal":{"name":"2020 2nd International Conference on Photovoltaic Science and Technologies (PVCon)","volume":"34 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":"123442157","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