- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
A Hybrid Intelligent Approach for Solar Photovoltaic Power Forecasting: Impact of Aerosol Data
摘要： The penetration of solar photovoltaic (PV) power in distributed generating system is increasing rapidly. The increased level of PV penetration causes various issues like grid stability, reliable power generation and power quality; therefore, it becomes utmost important to forecast the PV power using the meteorological parameters. The proposed model is developed on the basis of meteorological data as input parameters, and the impacts of these parameters have been analyzed with respect to forecasted PV power. The main focus of this research is to explore the performance of optimization-based PV power forecasting models with varying aerosol particles and other meteorological parameters. A newly developed intelligent approach based on grey wolf optimization (GWO) using multilayer perceptron (MLP) has been used to forecast the PV power. The performance of the GWO-based MLP model is evaluated on the basis of statistical indicators such as normalized mean bias error (NMBE), normalized mean absolute error (NMAE), normalized root-mean-square error (NRMSE) and training error. The results of the developed model show the values of NMBE, NMAE and NRMSE as 2.267%, 4.681% and 6.67% respectively. To validate the results, a comparison has been made with particle swarm optimization, Levenberg–Marquardt algorithm and adaptive neuro-fuzzy approach. The performance of the model is found better as compared to other intelligent techniques. The obtained results may be used for demand response applications in smart grid environment.
关键词： Solar power forecasting,Artificial neural network,Distributed power generation,Grey wolf optimization,Solar PV
更新于2025-09-16 10:30:52
-
A concentrating solar power system integrated photovoltaic and mid-temperature solar thermochemical processes
摘要： The approach of cascading solar energy utilization provides access to reliable and ample supplies of energy and has thus attracted widespread attention. Currently, the hybridization of a concentrating solar photovoltaic process and a solar thermochemical process is a promising approach. This paper describes and investigates a concentrating solar power system to harvest solar energy. Co-producing photovoltaic electricity and solar thermal fuel is its attractive distinction. The visible spectrum is cast onto concentrating photovoltaics to generate electricity, and the ultraviolet and infrared spectra are used to drive methanol decomposition at approximately 250 °C. A spectral splitting parabolic trough concentrator is developed in which incident solar radiation is first split and then concentrated. Based on the measured optical data of concentrators, photovoltaics and reactor, the solar-to-electricity performance is evaluated in the proposed system. The results show that a satisfied solar-to-electricity efficiency of approximately 31.8% would be realized if monocrystalline silicon photovoltaics is adopted. In comparison to individual systems, the efficiency enhancements of about 15.3% and 6.3% are obtained. The solar-to-electricity efficiency can reach approximately 35.1% by adopting gallium arsenide. Meanwhile, the improved optical performance proves that the approach of first splitting and then concentrating sunlight is feasible and promising. Finally, the results are anticipated to lead to a new approach for improving full-spectrum solar energy utilization and guiding the establishment of a prototype in the near future.
关键词： Full spectrum,Cascading solar energy utilization,Photovoltaic electricity,Concentrating solar power system,Solar thermal fuel
更新于2025-09-16 10:30:52
-
The use of light filters in the photovoltaic solar power station to improve economic efficiency
摘要： The agriculture and forestry sector require a solution to the problem of energy supply to autonomous consumers. The use of renewable energy sources is relevant worldwide in accordance with environmental requirements. The paper considers the project of a photovoltaic solar power station using light filters to reduce the number of solar panels to provide the required power. The Krasnoyarsk State Agrarian University has developed an experimental setup for studying the characteristics of solar panels using light filters. The aim of the study is to develop a technology for the use of light filters in photovoltaic solar power station and to optimize their operation modes in order to increase the economic efficiency of using autonomous sources for power supply to agricultural consumers. The objectives of the study are the selection and analysis of light filter materials to increase the generated power, substantiate the application of the photovoltaic solar power station for autonomous objects of agriculture and forestry and prove the economic efficiency of the proposed installation. The paper presents the results of a study of the characteristics of solar modules using filters, the main economic indicators are calculated, the economic efficiency of the use of filters is proved. The use of photovoltaic solar power station will ensure a reduction in the cost of electricity generation by 7% compared to existing plants.
关键词： economic efficiency,renewable energy sources,photovoltaic solar power station,solar panels,light filters
更新于2025-09-16 10:30:52
-
GSM based dual power enhanced LED display notice board with motion detector
摘要： In this paper, a new improved Light Emitting Diode (LED) Display notice board with GSM technology has been created to plugs in all the drawbacks in existing framework. The proposed model has an excellent display notice board to display notices or messages at places that require real-time visibility, thereby transferring messages by Short Message Service (SMS) through cellular device. The proposed work in this paper elaborately narrates the procedure to construct a display notice board that has the quality of displaying messages in continuously running mode, and enabling the user to alter the ongoing message using SMS instantaneously. This system also has the feasibility to bind with other devices such as PC or laptop. The best feature of proposed system is the dual system for changing messages. And also utilizes two way power supply such as Renewable energy (Solar Power) and AC power. This feature enables the proposed model to work under any situations which overcomes the drawback in the existing display notice boards. Additionally, a motion detector has been included which turn ON or OFF the system automatically if any motion is not sensed.
关键词： Motion Detector,LED Display,Solar Power,GSM technology,SMS
更新于2025-09-16 10:30:52
-
[IEEE 2019 8th International Conference on Systems and Control (ICSC) - Marrakesh, Morocco (2019.10.23-2019.10.25)] 2019 8th International Conference on Systems and Control (ICSC) - Photovoltaic pumping in lab bench
摘要： This work focuses on the creation of a lab bench emulating a photovoltaic irrigation system. The lab bench reproduces the irrigation of crops using solar power, to pump the water using a submerged pump to a reservoir, and then from a reservoir to the crops. The bench emulates a smaller version of this system in the lab. The bench allows researchers to test different kinds of irrigation programs.
关键词： submerged pump,solar power,photovoltaic irrigation system,irrigation programs,lab bench
更新于2025-09-16 10:30:52
-
On the technologies empowering drones for intelligent monitoring of solar photovoltaic power plants
摘要： Monitoring of solar photovoltaic power plants is an essential task that could enable efficient operation and maintenance. Active control and regular maintenance will enhance the photovoltaic plant's output performance and helps in reasonable or better returns on the investments made. The process of monitoring is done by conducting manual inspections, but due to technological advancements, the manual checks were replaced by intelligent systems, centralized control, and monitoring systems, surveillance cameras, robotics, drones, etc. Drones are becoming more suitable for the solar industry due to a wide range of surveillance capability, long range inspection, efficient data logging capability, easy to control and access from the central level, etc. In this paper, the role of drones in solar photovoltaic power plants, and scope for enabling intelligence and automation in drones for the active monitoring and data logging is discussed. Various types drones and their configurations along with the dynamics are also considered. A study on the technologies behind the drone intelligence and automation were identified and discussed. From this study, it was found that Recognition Technologies (RT), Artificial Intelligence (AI), and Machine Learning (ML) could empower the drones and make the monitoring of large-scale solar power plants easier. This study could help the developers and researcher who are working on intelligent drones for specialist care of massive solar parks, unaccessible remote solar plants, etc.
关键词： Drones,solar power plants,intelligent drones,autonomous drones,monitoring of solar plants,drones in the solar industry
更新于2025-09-12 10:27:22
-
Underwater Characterization and Monitoring of Amorphous and Monocrystalline Solar Cells in Diverse Water Settings
摘要： Most of Solar Photovoltaic (PV) cells are limited to space, dryland and rooftop applications leading to huge scope in exploring the performance of PV cells in an underwater environment. Such underwater Solar energy has tremendous potential to be used in many commercial and defense applications like sensors, underwater vehicles, autonomous power systems, etc. Nowadays, another major constraint in Solar PV systems is the cooling and cleaning of PV cells, which can also be overcome by placing PV cells underwater. Although the Solar spectrum itself changes underwater and becomes narrower with increasing the water depth, yet one of the possible solutions is using a suitable type of Solar cells for maximum power conversion underwater. In this work, an experimental setup has been designed and implemented to create an underwater environment. Further, Solar cells have been encapsulated with polydimethylsiloxane (PDMS) and diverse characterizations have been accomplished to sense the behavior of amorphous and monocrystalline cells with different water types. This study gives a better understanding to monitor the performance characteristics of Solar PV cells underwater with various factors such as the water depth, type of Solar cell, salinity, total dissolved salts and other impurities which will immensely affect the performance of Solar cells underwater.
关键词： Water-salinity,Monocrystalline solar cell,Underwater Solar power,PDMS (Polydimethylsiloxane),Photovoltaic (PV) technology,Amorphous solar cell
更新于2025-09-12 10:27:22
-
Manufacturing of a parabolic trough concentrating collector test rig and a “LASER-Screen” technique for measuring actual focal length and light interceptance of the collector
摘要： A portable parabolic trough-concentrating solar collector test rig was designed, and fabricated using locally available materials and technique. A trough made of any materials and the energy collection element of any geometry with maximum aperture area of 80×100cm2 and 2.5×100cm2 respectively can be fitted readily in the support structure of the rig. A two-axis manual tracking system allows the rig to track the sun daily from east to west for every 5° interval, and seasonally from 50°North to 80°South for every 15°. In addition to this, actual focal length and light interceptance were investigated applying customised “LASER-Screen” technique. An average light interceptance of the rig for a 2.5 cm diameter absorber tube was measured to be 85.9%. The focal length of the 100 cm long test rig was found to be 18.167±1.35cm. The test rig will facilitate to investigate the energy potential in Chittagong region of Bangladesh.
关键词： parabolic profile accuracy,concentrating solar power,slope error measurement,LASER-Screen technique,Parabolic trough concentrating collector
更新于2025-09-12 10:27:22
-
Investigation of effect of batch-separation on the micro-energy generation in M.indica L. dye-sensitized Solar Cells
摘要： The technology of silicon panels has improved over the years with the application of silicon into several material architecture. However, the high cost of the technology has limited its wide adoption. Recent advances have shown that natural materials employed as dye sensitizers for solar cells provide viable alternatives at low cost. This study focused on implementing Mango (Magnifera indica Linn.) leaf dye as dye sensitizer for solar cells. Unlike previous approaches, it employed batch-separated M.indica L. to sensitize two groups of dye-sensitized solar cells (DSCs). Parameters such as short circuit current (Isc), open circuit voltage (Voc), maximum power (Pmax), fill factor (ff), incident photon to conversion efficiency (IPCE) and output efficiency (?) were used to determine the outcome of the M.indica L. DSCs. The doctor blade method and high temperature sintering at 450 0C was used in the preparation of both photoanodes. Photovoltaic results reveal DSCs with a higher efficiency of 4.75 x 10-3 % in crude M.indica L. than 0.07 x 10-3 % for batch separated hexane faction of M.indica L. under same conditions of standard air mass. Remarkably, the hexane M.indica L.DSC recorded larger values of Isc and Voc. The significance of this result is that crude M.indica L DSCs are more affordable, have a facile production process and is an ecologically safe alternatives to silicon solar cells. Although the efficiencies are comparatively low, further research with a solar simulator and co-sensitization with other dyes is recommended for a better outcome.
关键词： Energy Efficiency,Photovoltaic Systems,Energy harvesting,Solar Power,Sustainable Energy
更新于2025-09-12 10:27:22
-
Small scale solar tower coupled with micro gas turbine
摘要： This paper studies a small-scale CSP system composed of a solar tower and a recuperative air micro gas turbine (i.e. net power in the 100e200 kWe range). A code is developed to determine the optical performance of the heliostat field coupled with a secondary concentrator, while another code computes the thermal engine performance. The 832 m2 heliostat field layout is taken from a real plant, while the secondary optics is studied to maximize the optical-thermal efficiency. The selected secondary concentrator (CPC), with an aperture diameter of 0.5 m and an acceptance angle of 35(cid:1) tilted of 52.5(cid:1), guarantees an overall optical efficiency of 77.9% in design conditions (Spring equinox, solar noon) and of 66.9% on yearly basis. For every Effective DNI (EDNI) and ambient temperature the turbine operation is optimized allowing to achieve a yearly solar-to-electricity efficiency of 16.3%. Summing up the cost of each component, an overall plant cost of about 2300 V/kW (peak) and a LCOE of 175 V/MWh are obtained. A sensitivity analysis on design EDNI, impacting on turbine size, is performed showing that its reduction from 700 W/m2 to 550 W/m2 allows reducing the LCOE down to 158 V/MWh, a value competitive with large-scale solar towers. The possibility of hybridization of plant (i.e. improving the gas turbine power output in selected hours, by means of biomethane or natural gas combustion) was considered to further reduce the LCOE.
关键词： Concentrating solar power,Solar energy,Compound parabolic concentrator,Heliostat field,Solar power tower,Micro gas turbine
更新于2025-09-11 14:15:04