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Analysis Performance of Grid Tie Photovoltaic Type Polycrystalline Using Solar Irradiance Simulation
摘要： Indonesia is a country consisting of several islands some of which are still not covered by electricity. It is this source of PV that can be used to meet the needs of people who are not yet affordable with PLN electricity. Basically, PV includes the generation of new renewable energy types. This new form of energy comes from sunlight. Using semiconductor materials can convert energy from sunlight to electrical energy. Because in Indonesia this includes tropical climates located on the equator line, making Indonesia has a very high intensity of light. Several factors affect electrical energy, namely the extent of PV to be used, the total irradiance received by PV, the decrease in performance due to weather and cleanliness of the PV used such as snow and oiliness. In this study explained the Analysis of Irradian-based Grid Tie photovoltaic performance with Polycrystalline PV types. Taking irradian data using a Solar Power Meter, irradiance and temperature data at a certain time will use the Incremental Maximum Power Point Tracking (MPPT) method, DC-DC boost converter, inverter, voltage source converter (VSC) using algorithm and equipment controls connected to network. This research is simulated using Matlab with the Simulink program.
关键词： Irradiance,PVArray,MPPT,Temperature,Grid,Solar Photovoltaic
更新于2025-09-11 14:15:04
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Erbium doped anatase TiO2 nanoparticles for photovoltaic applications
摘要： Doping of rare earth metal erbium (Er) into the nanocrystalline titanium dioxide (TiO2) was identified to enhance the performance of photocatalytic and photovoltaic applications. Herein, TiO2 was doped with different concentrations of erbium through hydrothermal method and then employed to photocatalytic and photovoltaic applications. XRD, FT-IR, TEM, AFM, UV–visible DRS and photocatalytic measurements were carried out to examine the impact of erbium doping on TiO2. The photovoltaic study revealed that the Er doped TiO2 exhibited the better power conversion efficiency with high short-circuit current density (Jsc) and open-circuit voltage (Voc). This enhancement may be due to the reduced charge recombination, increased dye absorption ability and fast photoelectron injection.
关键词： TEM,Photovoltaic,XRD,FT-IR,Er doped TiO2,Photocatalytic
更新于2025-09-11 14:15:04
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ZrS3/MS2 and ZrS3/MXY (M Mo, W; X, Y S, Se, Te; X?≠?Y) type-II van der Waals hetero-bilayers: Prospective candidates in 2D excitonic solar cells
摘要： Excellent photovoltaic abilities in a 2D excitonic solar cell based on staggered type-II van der Waals (vdW) hetero-bilayers comprising of semiconducting ZrS3 monolayer and monolayers of MS2 & MXY (M=Mo, W; X, Y=S, Se, Te; X≠Y) are reported herewith, using DFT-D2 and HSE06 functional. Studies on vdW hetero-bilayers of MX3/MX2 and MX3/M’Y2 have so far been conveniently avoided on account of their large lattice mismatch. The present work is the first attempt to address such hetero-bilayers constituted by monolayers of transition metal dichalcogenides and trichalcogenides. The nature of the band edges in ZrS3 and MS2 monolayers induces high electron and hole mobility in these individual monolayers, respectively, which has been combined synergistically in the hetero-bilayers consisting of them. The Power Conversion Efficiency (PCE) in ZrS3/MoS2, ZrS3/WS2, ZrS3/MoSeTe, ZrS3/WSTe, and ZrS3/WSeTe hetero-bilayers, calculated within the Anderson-limit, are found to reach as high as ~12%, 8%, 16%, 14%, and 14% respectively. The PCE of the hetero-bilayers reported herewith are much higher than the efficiency in MoS2/p-Si heterojunction solar cells (5.23%) and comparable to that of the theoretically proposed PCBM fullerene/BCN system (10?20%) and g-SiC2-based systems (12?20%) and the recently predicted TiNF/TiNBr (18%), TiNCl/TiNBr (19%), TiNF/TiNCl (22%) bilayer solar cell systems.
关键词： 2D materials,transition metal dichalcogenides,photovoltaic,van der Waals hetero-bilayers,transition metal trichalcogenides,power conversion efficiency
更新于2025-09-11 14:15:04
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Factors contributing to degradation of organic photovoltaic cells
摘要： The performance of organic photovoltaic (OPV) cells has considerably improved over the past decade, and now exceeds an energy conversion efficiency of 10%, the benchmark for practical use. One factor contributing to this increase is the development of π-conjugated linear acceptor molecules as alternatives to fullerene derivatives. Although conversion efficiency is an important issue for practical applications, device stability is also necessary for commercialization of OPV technologies. To date, long-term stability has been examined in OPV devices based on fullerenes. However, the factors involved in performance degradation remain poorly understood. It is difficult to address this problem because of the multilayer nature of the devices and many factors involved in degradation. In recent OPV devices based on π-conjugated molecules as acceptors, there have been few reports on stability under continuous light irradiation. Ensuring the stability of the π-conjugated molecules under illumination and electrical operation is critical for achieving practical use of OPV devices. In this paper, we comprehensively analyzed OPV devices based on EH-IDTBR as an acceptor material. We identified a decrease in OPV performance of approximately 50% under 100-hour light irradiation, which we attribute to increased resistance of the organic semiconductor layer. The increase in resistance was caused by a decrease in the number of carriers, suggesting that structural changes in the EH-IDTBR molecule are an important factor affecting degradation.
关键词： Durability,impedance measurement,organic photovoltaic,stability,MALDI-TOF-MS
更新于2025-09-11 14:15:04
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Solar Photovoltaic Array Reconfiguration using Magic Su-Do-Ku algorithm for Maximum Power Production under Partial Shading Conditions
摘要： Power generation using photovoltaic (PV) array diminishes during shading. Under the conditions, the solar PV modules are exposed to dissimilar solar irradiation. The power vs voltage curve and current vs voltage curve of such PV array consist of multiple peaks in its characteristics and consequently the mismatch losses occur. This paper explores the power enhancement in PV array, which is exposed to partial shading conditions, through Magic Su-Do-Ku based static reconfiguration. The previous suggested static reconfiguration strategies attain poor power enhancement due to ineffectual shade dispersion. This proposed Magic Su-Do-Ku based interconnection arrangement overcomes these drawbacks to attain uniform shadow dispersion without altering the Total-Cross-Tied (TCT) connections. The power enhancement of the PV array has been analyzed through its P-V characteristics, mismatch loss, and effect of shade dispersion on its maximum power point (MPP) with different shading patterns. The performance of suggested arrangement shows good results for various shading patterns.
关键词： Magic Su-Do-Ku pattern,Mismatch losses,Solar Photovoltaic system,Static reconfiguration,Partial shading
更新于2025-09-11 14:15:04
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Challenges and research needs in life cycle analysis of building-integrated photovoltaic
摘要： Building-integrated photovoltaic (BIPV) is a promising solar energy technology that looks set to grow in popularity in the pursuit of a sustainable future. It has the potential to mitigate some of the main concerns over ground-mounted solar energy systems such as land use. However, there is an apparent gap in our understanding of its life cycle environmental impacts. Very few life cycle analysis (LCA) studies have evaluated BIPV comprehensively in comparison with standalone PV systems and other energy technologies. In this paper, we review the limited existing LCA studies on BIPV and identify the challenges and future research needs. The findings will help researchers, industries and policy makers better understand the environmental sustainability of BIPV to facilitate its development.
关键词： building-integrated photovoltaic,environmental sustainability,life cycle analysis,solar energy
更新于2025-09-11 14:15:04
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[IEEE 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Chengdu, China (2019.5.21-2019.5.24)] 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Research & Prospect of Cascade Hydro-photovoltaic-pumped Storage Hybrid Power Generation Technology
摘要： Development of renewable energy has become a key strategic measure for energy development in countries around the world. The technology of cascade hydro-photovoltaic- pumped storage hybrid power generation closely combines small cascade hydropower, photovoltaic(PV) power and pumped storage power generation, and realizes complementary optimization of these renewable resources. Taking the cascade hydro-photovoltaic-pumped storage combines power generation technology as the research object, this paper summarizes its research status in recent years, and discusses the prospects of three key technologies of multi-time-scale planning of hydro- photovoltaic-pumped storage power generation which adapts to complex dynamic and static operating conditions, dynamic safe operation interval analysis and cluster control of cascade hydro- photovoltaic hybrid system and intelligent dispatching and optimal control of cascade hydro-photovoltaic-pumped storage hybrid power station with consideration taken on stochastic behaviors. This paper aims to, suggesting research approaches for the research and relevant works on the technology development of cascade hydro-photovoltaic-pumped storage hybrid power generation.
关键词： photovoltaic power,Cascade hydropower,multi-energy hybrid power,pumped storage,renewable energy
更新于2025-09-11 14:15:04
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[IEEE 2019 IEEE International Conference on RFID Technology and Applications (RFID-TA) - Pisa, Italy (2019.9.25-2019.9.27)] 2019 IEEE International Conference on RFID Technology and Applications (RFID-TA) - Energy Harvesting Based On Printed Organic Photovoltaic Cells for RFID Applications
摘要： This work discusses the possibility of using printed organic photovoltaic cells in order to increase the performance of UHF RFID sensor tags. As a proof of concept, an organic photovoltaic (OPV) cell was used to power the chip SL900A that incorporates a sensor front-end interface capable of measuring voltages, currents, resistances, and capacitances. Several read range measurements were realized using other types of power sources and compared to OPV. Results based on the OPV cell showed a significant enhancement in the tag read range (up to 80%) under low light conditions which opens the door for several IoT applications.
关键词： IoT,Organic photovoltaic,Sensors,UHF RFID Tags,Energy Harvesting
更新于2025-09-11 14:15:04
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Two-Dimensional Heterojunction Photovoltaic Cells with Low Spontaneous-Radiation Loss and High Efficiency Limit
摘要： This work presents theoretical investigations on the spontaneous-radiation loss of two-dimensional van der Waals heterojunction photovoltaic cells (2D-PVcs) combined with an interference-based light-trapping structure. We find that 2D-PVcs possess much lower spontaneous radiation loss, since the solid angle of the spontaneous radiation is a magnitude smaller than that in traditional PVcs. The efficiency limit of a 2D-PVc can be 10% larger than that of a traditional PVc. Furthermore, we demonstrate that the spontaneous-radiation loss can be further reduced by introducing only a weak light-concentrating system, approaching the efficiency limit of traditional PVcs under perfect focus. In a trapped structure, the smaller the light absorption coefficients of the photovoltaic cells, the higher are the efficiency limits that are achieved. Finally, the spontaneous-radiation loss increases as the battery thickness increases, indicating that the 2D-PVc has the lowest spontaneous emission loss because of its extremely low thickness.
关键词： photovoltaic cells,two-dimensional heterojunction,spontaneous-radiation loss,light-trapping structure,efficiency limit
更新于2025-09-11 14:15:04
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[IEEE 2019 Chinese Control And Decision Conference (CCDC) - Nanchang, China (2019.6.3-2019.6.5)] 2019 Chinese Control And Decision Conference (CCDC) - A Photovoltaic MPPT Control Strategy Based on Gradient Optimization and MPP Voltage Law
摘要： In this work, a maximum power point tracking (MPPT) control algorithm is developed to determine power efficiency, and to improve the transient nature of the power curve characteristics of a PV cell. Based on the analysis of existing MPPT methods, for PV systems, the relationship between MPP voltage and the open circuit voltage of PV cell under different conditions is studied; moreover, a novel MPPT control strategy which can be applied to different irradiance conditions based on a sub-domain gradient optimization principle and MPP voltage law is proposed. Simulation results show that the proposed method has advantages of fast dynamic response and a non-oscillatory steady state response under different irradiance conditions and input waveforms. For the experimental setup, an existing control method and the proposed MPPT control algorithm are implemented on solar PV cell; it was observed that the proposed MPPT algorithm has stable steady state dynamic characteristics and a fast response speed.
关键词： MPPT,photovoltaic system,voltage law,gradient optimization
更新于2025-09-11 14:15:04