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AIP Conference Proceedings [Author(s) SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems - Santiago, Chile (26–29 September 2017)] - System-level simulation of a novel solar power tower plant based on a sodium receiver, PCM storage and sCO2 power block
摘要： In this work, we explore for the first time the viability and the annual performance of a solar plant which combines a sodium receiver, phase-change material (PCM) storage and supercritical CO2 (sCO2) power block. The simulation results suggest that the system is thermodynamically and economically viable, reducing the levelized cost of electricity (LCOE) compared with a conventional CST plant based on molten salts. The paper presents a new dynamic model of the novel plant configuration which is used for performing a storage sizing study obtaining the best plant investment.
关键词： sCO2 power block,solar power tower,LCOE,PCM storage,sodium receiver
更新于2025-09-09 09:28:46
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<b>Compatibility of Anfis controller and FPGA in solar power generation for a domestic oad
摘要： Among other soft computing techniques, the Adaptive Neuro Fuzzy Inference System (Anfis) gives a significant and advantageous result in solar power generation, especially in tracking the maximum power point. Due to the dynamic nature of solar irradiance and temperature, efficient energy conversion is not possible. However, advancements in the areas of artificial intelligence have made it possible to overcome the hurdles. The Maximum Power Point Tracking (MPPT) technique adopting the advantages of Anfis has been proven to be more successful with a fast dynamic response and high accuracy. The complete system is modeled using Matlab/Simulink; the hardware results are validated with the benefits of Field Programmable Logic Array (FPGA) instead of ordinary micro-controllers.
关键词： DC-AC power conversion,MPPT,FPGA,Anfis controller,solar power generation
更新于2025-09-09 09:28:46
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[ASME ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Boston, Massachusetts, USA (Sunday 2 August 2015)] Volume 2A: 41st Design Automation Conference - Solar Power Ramp Events Detection Using an Optimized Swinging Door Algorithm
摘要： Solar power ramp events (SPREs) significantly influence the integration of solar power on non-clear days and threaten the reliable and economic operation of power systems. Accurately extracting solar power ramps becomes more important with increasing levels of solar power penetrations in power systems. In this paper, we develop an optimized swinging door algorithm (OpSDA) to enhance the state of the art in SPRE detection. First, the swinging door algorithm (SDA) is utilized to segregate measured solar power generation into consecutive segments in a piecewise linear fashion. Then we use a dynamic programming approach to combine adjacent segments into significant ramps when the decision thresholds are met. In addition, the expected SPREs occurring in clear-sky solar power conditions are removed. Measured solar power data from Tucson Electric Power is used to assess the performance of the proposed methodology. OpSDA is compared to two other ramp detection methods: the SDA and the L1-Ramp Detect with Sliding Window (L1-SW) method. The statistical results show the validity and effectiveness of the proposed method. OpSDA can significantly improve the performance of the SDA, and it can perform as well as or better than L1-SW with substantially less computation time.
关键词： Dynamic programming,solar power ramp events,ramp forecasting,swinging door algorithm,Tucson Electric Power
更新于2025-09-09 09:28:46
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Solar and climatic high performance factors for the placement of solar power plants in Argentina Andes sites. Comparison with African and Asian sites.
摘要： The installation of solar power plants is currently having a notable expansion. The results presented show that the Argentinean Andes range, from the central to northern latitudes, is an excellent region for the placement of these plants, due to the sum of different positive factors: very high mean annual solar irradiation, low ambient temperature and relative humidity, low precipitable water content, normal wind speeds and extremely low aerosol content of the atmosphere. The proposed regions are nearby San Antonio de los Cobres and El Leoncito, and are compared with two important locations where large solar power plants have been (or will be) built: a site in Africa (Ouarzazate, Morocco) and one in Asia (Dubai, Arab Emirates). We present results of the possible production of electricity, supplying a total of about 21000 GWh, which is 15.6% of the 2015 Argentinean electric consumption and, consequently, could reduce the emission of greenhouse gases in a total mass of 11.2 million tons of CO2eq. The installation of this type of renewable power plants, will contribute significantly to the Argentinean population due to frequent (mainly summer) cutoff of electric power supply and, in particular, to isolated (low income) populations leaving in the Argentinean Andes range.
关键词： Solar radiation,Argentina,Andes,Climatic data,Solar power plant
更新于2025-09-09 09:28:46
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[IEEE 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA) - Paris, France (2018.10.14-2018.10.17)] 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA) - Failure detection of solar panels using thermographic images captured by drone
摘要： In this work, we compare several methods for detecting failed solar panels, and found that drone detection is the most efficient. We show thermographic images captured by drone and explain various types of panel failures. An examination by deep learning revealed that single shot detection (SSD) is an effective method of automatic detection. We ran tests with the SSD model using 4-MW solar plant data and achieved a mean average precision of 49.11%.
关键词： Thermography,Mega solar,Drone,Failure detection,Solar power
更新于2025-09-09 09:28:46
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AIP Conference Proceedings [Author(s) SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems - Santiago, Chile (26–29 September 2017)] - Techno-economic analysis of a small scale solar power tower at varied locations
摘要： Location selection is an important factor for the effectiveness and cost of a solar electricity generation system. Latitude and weather impact efficiency and availability, and local labor rates have a further influence on cost. To explore the impact of these effects, we performed techno-economic analysis of a small-scale solar power tower concept in six different locations in the United States, Australia, and India. The specific configuration we considered has a nominal power rating of 100 kWe and 5 hours of thermal energy storage. Further, we considered two deployment strategies: a single stand-alone 100 kWe tower, and a 20 MWe cluster of many towers. For each scenario, we used a probabilistic analysis method to evaluate levelized cost of electricity. We found that this configuration has potential for cost-competitive electricity generation and the ability to improve grid flexibility for integration of intermittent renewables. In addition, solar resource, latitude, and local labor rates all have an impact on the levelized cost of electricity of the system.
关键词： levelized cost of electricity,solar power tower,thermal energy storage,techno-economic analysis,renewable energy
更新于2025-09-09 09:28:46
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AIP Conference Proceedings [Author(s) SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems - Santiago, Chile (26–29 September 2017)] - Systems approach to concentrated solar power (CSP) technology adoption in South Africa
摘要： To meet its future energy demand, the government of South Africa set up an Integrated Resource Plan (IRP) with the primary objective of determining its long-term electricity demand, and indicating how this demand should be met, in terms of generation type and timing. The IRP in 2010 presented the favoured energy generation techniques in SA, and it allocated 17 800 MW (42%) of the total energy mix in 2030 to renewable energy technologies (RETs). To achieve this target, the Renewable Energy Independent Power Producer Procurement Programme (REI4P) was launched and wind, solar photovoltaic (PV) and concentrating solar power (CSP) have been favoured mostly in the bids rolled out thus far. South Africa has been identified as one of the world’s best destinations for CSP because of the available solar resources, and a total of 600 MW of CSP had been purchased in the REIPPPP bids. However, the IRP update of 2016 threw CSP out of the future energy plans, when it gave no share to new electricity generation from it beyond 2030. This has created growing uncertainty of the future of CSP in South Africa. There is therefore an urgent need for collective efforts to present a broad and detailed value proposition in terms of present and prospects of CSP, and how it can be developed and deployed in the country to foster a lower tariff, encourage adoption, and ensure its return to the IRP. The study presented in this paper used a system dynamics approach to analyse the unique, critical and complex factors that affect the deployment of CSP in South Africa, as identified by concerned policy-makers, CSP experts, and existing studies. The result from this study shows that improved support for research is the most effective way to open new methods and ways in which the CSP technologies can be deployed, which will foster further CSP adoption in South Africa.
关键词： Renewable Energy Technologies (RETs),Integrated Resource Plan (IRP),South Africa,System Dynamics,Concentrated Solar Power (CSP)
更新于2025-09-09 09:28:46
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[IEEE 2018 International Conference on Current Trends towards Converging Technologies (ICCTCT) - Coimbatore, India (2018.3.1-2018.3.3)] 2018 International Conference on Current Trends towards Converging Technologies (ICCTCT) - Design. Performance Analysis and Optimization of a 100 MW Concentrated Solar Power Plant with Thermal Energy Storage
摘要： The energy demand of the middle east region is on the rise with an urgent need to tap the abundant renewable energy sources in the region.This is essential for the future development of the Middle- East region as it reduces the dependency on fossil fuels and eliminates the problems associated with air pollution and greenhouse gases. This paper presents the design, performance analysis and optimization of a 100 MWe parabolic trough based Concentrated Solar Power Plant with thermal energy storage for a location in Abudhabi which falls in middle east region. The thermodynamic aspect and annual performance of the proposed plant design is also analyzed using the SAM software.The annual energy generated from the CSP plant is found to be 333.15GWh with a gross to net conversion factor of 81.1%.The mean efficiency of the plant is found to be 14.35%. The performance of the proposed CSP plant is further optimized by varying the solar multiple and full load hours of TES. The proposed parabolic trough based CSP plant with thermal energy storage is found to be feasible for the location further in Abudhabi and encourages development of solar thermal power plants in the region.
关键词： optimization,Renewable energy,thermal energy storage,parabolic trough,Concentrated Solar Power
更新于2025-09-09 09:28:46
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SiC-TiC nanocomposite for bulk solar absorbers applications: Effect of density and surface roughness on the optical properties
摘要： In this study, the potential of SiC-TiC nano-composites as solar absorbers has been studied. For solar thermal applications, materials with high solar absorptance and low emittance are ideally sought for (spectral selectivity). A semi-molecular sol-gel synthesis route leading to nanometric homogenous composites was described. The resulting SiC-TiC nanocomposite powder was sintered at different temperatures to produce samples with various relative densities (from 57% to 96%). The samples morphology and composition were characterized by several techniques including Scanning Electron Microscopy (SEM), Energy-Dispersive X-Ray Spectroscopy (EDX), X-Ray Diffraction (XRD), carbon and oxygen elemental analyses. The link between the surface roughness and the relative density was precised and the effects on the optical properties (0.25–25 μm wavelength range) were studied. Comparisons were made with pure SiC and pure TiC samples with various relative densities. Overall, the sample emittance was found to strongly decrease with the increase in the relative density, leading to a great increase in the spectral selectivity, despite a little decrease in the solar absorptance. The TiC-SiC composite has an intermediate reflectance compared to the pure SiC and the pure TiC samples. With an absorptance of 0.76, an emittance of 0.44 and a selectivity of 1.74, the denser SiC-TiC could be a good candidate for bulk solar applications.
关键词： Concentrated Solar Power,TiC,Selectivity,Density,SiC,Roughness
更新于2025-09-09 09:28:46
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[IEEE 2018 Power Systems Computation Conference (PSCC) - Dublin, Ireland (2018.6.11-2018.6.15)] 2018 Power Systems Computation Conference (PSCC) - Optimal Management of Storage for Offsetting Solar Power Uncertainty Using Multistage Stochastic Programming
摘要： Africa has recently engaged in implementing an aggressive renewable energy integration plan. A major challenge in the deployment of renewable power is the management of excess energy. The use of battery storage has been considered as a technically attractive solution. This paper tackles this operational problem using stochastic dual dynamical programming. We present an open-source MATLAB toolbox for multistage stochastic programming which employs stochastic dual dynamic programming. We use the toolbox in order to compare the stochastic solution to a greedy policy which operates batteries without future foresight as a benchmark. We consider a case study of storage management in Burkina Faso. We quantify the benefits of the stochastic solution and test the sensitivity of our results to the optimization horizon of the stochastic program.
关键词： solar power,storage,Dynamic programming
更新于2025-09-09 09:28:46