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Analysis for Effects of Temperature Rise of PV Modules upon Driving Distance of Vehicle Integrated Photovoltaic Electric Vehicles
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作者 Masafumi Yamaguchi Yasuyuki Ota +18 位作者 Taizo Masuda Christian Thiel Anastasios Tsakalidis Arnulf Jaeger-Waldau Kenji Araki Kensuke Nishioka Tatsuya Takamoto Takashi Nakado Kazumi Yamada Tsutomu Tanimoto Yosuke Tomita Yusuke Zushi Kenichi Okumura Takashi Mabuchi Akinori Satou Kyotaro Nakamura Ryo Ozaki Nobuaki Kojima Yoshio Ohshita 《Energy and Power Engineering》 2024年第4期131-150,共20页
The development of vehicle integrated photovoltaics-powered electric vehicles (VIPV-EV) significantly reduces CO<sub>2</sub> emissions from the transport sector to realize a decarbonized society. Although ... The development of vehicle integrated photovoltaics-powered electric vehicles (VIPV-EV) significantly reduces CO<sub>2</sub> emissions from the transport sector to realize a decarbonized society. Although long-distance driving of VIPV-EV without electricity charging is expected in sunny regions, driving distance of VIPV-EV is affected by climate conditions such as solar irradiation and temperature rise of PV modules. In this paper, detailed analytical results for effects of climate conditions such as solar irradiation and temperature rise of PV modules upon driving distance of the VIPV-EV were presented by using test data for Toyota Prius and Nissan Van demonstration cars installed with high-efficiency InGaP/GaAs/InGaAs 3-junction solar cell modules with a module efficiency of more than 30%. The temperature rise of some PV modules studied in this study was shown to be expressed by some coefficients related to solar irradiation, wind speed and radiative cooling. The potential of VIPV-EV to be deployed in 10 major cities was also analyzed. Although sunshine cities such as Phoenix show the high reduction ratio of driving range with 17% due to temperature rise of VIPV modules, populous cities such as Tokyo show low reduction ratio of 9%. It was also shown in this paper that the difference between the driving distance of VIPV-EV driving in the morning and the afternoon is due to PV modules’ radiative cooling. In addition, the importance of heat dissipation of PV modules and the development of high-efficiency PV modules with better temperature coefficients was suggested in order to expand driving range of VIPV-EV. The effects of air-conditioner usage and partial shading in addition to the effects of temperature rise of VIPV modules were suggested as the other power losses of VIPV-EV. 展开更多
关键词 Vehicle Integrated photovoltaics (VIpv) VIpv-Powered Electric Vehicles Driving Distance pv modules Solar Irradiation Temperature Rise Radiative Cooling
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Study on Image Recognition Algorithm for Residual Snow and Ice on Photovoltaic Modules
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作者 Yongcan Zhu JiawenWang +3 位作者 Ye Zhang Long Zhao Botao Jiang Xinbo Huang 《Energy Engineering》 EI 2024年第4期895-911,共17页
The accumulation of snow and ice on PV modules can have a detrimental impact on power generation,leading to reduced efficiency for prolonged periods.Thus,it becomes imperative to develop an intelligent system capable ... The accumulation of snow and ice on PV modules can have a detrimental impact on power generation,leading to reduced efficiency for prolonged periods.Thus,it becomes imperative to develop an intelligent system capable of accurately assessing the extent of snow and ice coverage on PV modules.To address this issue,the article proposes an innovative ice and snow recognition algorithm that effectively segments the ice and snow areas within the collected images.Furthermore,the algorithm incorporates an analysis of the morphological characteristics of ice and snow coverage on PV modules,allowing for the establishment of a residual ice and snow recognition process.This process utilizes both the external ellipse method and the pixel statistical method to refine the identification process.The effectiveness of the proposed algorithm is validated through extensive testing with isolated and continuous snow area pictures.The results demonstrate the algorithm’s accuracy and reliability in identifying and quantifying residual snow and ice on PV modules.In conclusion,this research presents a valuable method for accurately detecting and quantifying snow and ice coverage on PV modules.This breakthrough is of utmost significance for PV power plants,as it enables predictions of power generation efficiency and facilitates efficient PV maintenance during the challenging winter conditions characterized by snow and ice.By proactively managing snow and ice coverage,PV power plants can optimize energy production and minimize downtime,ensuring a sustainable and reliable renewable energy supply. 展开更多
关键词 photovoltaic(pv)module residual snow and ice snow detection feature extraction image processing
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Forestvoltaics,Floatovoltaics and Building Applied Photovoltaics(BAPV)Potential for a University Campus
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作者 Rittick Maity Muhammad Khairul Imran bin Ahmad Shuhaimi +1 位作者 Kumarasamy Sudhakar Amir Abdul Razak 《Energy Engineering》 EI 2024年第9期2331-2361,共31页
The United Nations’Sustainable Development Goals(SDGs)highlight the importance of affordable and clean energy sources.Solar energy is a perfect example,being both renewable and abundant.Its popularity shows no signs ... The United Nations’Sustainable Development Goals(SDGs)highlight the importance of affordable and clean energy sources.Solar energy is a perfect example,being both renewable and abundant.Its popularity shows no signs of slowing down,with solar photovoltaic(PV)panels being the primary technology for converting sunlight into electricity.Advancements are continuously being made to ensure cost-effectiveness,high-performing cells,extended lifespans,and minimal maintenance requirements.This study focuses on identifying suitable locations for implementing solar PVsystems at theUniversityMalaysia PahangAl SultanAbdullah(UMPSA),Pekan campus including buildings,water bodies,and forest areas.A combined technical and economic analysis is conducted using Helioscope for simulations and the Photovoltaic Geographic Information System(PVGIS)for economic considerations.Helioscope simulation examine case studies for PV installations in forested areas,lakes,and buildings.This approach provides comprehensive estimations of solar photovoltaic potential,annual cost savings,electricity costs,and greenhouse gas emission reductions.Based on land coverage percentages,Floatovoltaics have a large solar PV capacity of 32.3 Megawatts(MW);forest-based photovoltaics(Forestvoltaics)achieve maximum yearly savings of RM 37,268,550;and Building Applied Photovoltaics(BAPV)have the lowest CO2 emissions and net carbon dioxide reduction compared to other plant sizes.It also clarifies the purpose of using both software tools to achieve a comprehensive understanding of both technical and economic aspects. 展开更多
关键词 Helioscope solar photovoltaic pv GIS performance land coverage ECONOMICS
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Analysis of the Effect of Temperature and Relative Humidity on the Reliability of a Photovoltaic Module
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作者 Abdoulaye Kabré Dominique Bonkoungou Zacharie Koalaga 《Advances in Materials Physics and Chemistry》 CAS 2024年第8期165-177,共13页
Photovoltaic energy occupies a significant place in the renewable energy market, with photovoltaic (PV) modules playing a vital role in converting solar energy into electricity. However, their effectiveness is likely ... Photovoltaic energy occupies a significant place in the renewable energy market, with photovoltaic (PV) modules playing a vital role in converting solar energy into electricity. However, their effectiveness is likely to be affected by variations in environmental conditions, including temperature and relative humidity. The study examines the impact of these major climatic factors on the reliability of PV modules, aiming to provide crucial information for optimizing and managing these systems under varying conditions. Inspired by Weibull’s law to model the lifespan of components, we proposed a mathematical model integrating a correction factor linked to temperature and relative humidity. Using this approach, simulations in Matlab Simulink reveal that increasing temperature and relative humidity have an adverse impact on the reliability and lifespan of PV modules, with a more pronounced impact on temperature. The results highlight the importance of considering these environmental parameters in the management and optimization of photovoltaic systems to ensure their long-term efficiency. 展开更多
关键词 Solar Energy pv module LIFESPAN RELIABILITY EFFICIENCY
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Synergetic optimization operation method for distribution network based on SOP and PV 被引量:1
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作者 Lei Chen Ning Zhang +4 位作者 Xingfang Yang Wei Pei Zhenxing Zhao Yinan Zhu Hao Xiao 《Global Energy Interconnection》 EI CSCD 2024年第2期130-141,共12页
The integration of distributed generation brings in new challenges for the operation of distribution networks,including out-of-limit voltage and power flow control.Soft open points(SOP)are new power electronic devices... The integration of distributed generation brings in new challenges for the operation of distribution networks,including out-of-limit voltage and power flow control.Soft open points(SOP)are new power electronic devices that can flexibly control active and reactive power flows.With the exception of active power output,photovoltaic(PV)devices can provide reactive power compensation through an inverter.Thus,a synergetic optimization operation method for SOP and PV in a distribution network is proposed.A synergetic optimization model was developed.The voltage deviation,network loss,and ratio of photovoltaic abandonment were selected as the objective functions.The PV model was improved by considering the three reactive power output modes of the PV inverter.Both the load fluctuation and loss of the SOP were considered.Three multi-objective optimization algorithms were used,and a compromise optimal solution was calculated.Case studies were conducted using an IEEE 33-node system.The simulation results indicated that the SOP and PVs complemented each other in terms of active power transmission and reactive power compensation.Synergetic optimization improves power control capability and flexibility,providing better power quality and PV consumption rate. 展开更多
关键词 Synergetic optimization Soft open point(SOP) photovoltaic(pv) Distribution network
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Performance Assessment of a Real PV System Connected to a Low-Voltage Grid 被引量:1
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作者 Gaber Magdy Mostafa Metwally +1 位作者 Adel A.Elbaset Esam Zaki 《Energy Engineering》 EI 2024年第1期13-26,共14页
The generation of photovoltaic(PV)solar energy is increasing continuously because it is renewable,unlimited,and clean energy.In the past,generation systems depended on non-renewable sources such as oil,coal,and gas.Th... The generation of photovoltaic(PV)solar energy is increasing continuously because it is renewable,unlimited,and clean energy.In the past,generation systems depended on non-renewable sources such as oil,coal,and gas.Therefore,this paper assesses the performance of a 51 kW PV solar power plant connected to a low-voltage grid to feed an administrative building in the 6th of October City,Egypt.The performance analysis of the considered grid-connected PV system is carried out using power system simulator for Engineering(PSS/E)software.Where the PSS/E program,monitors and uses the power analyzer that displays the parameters and measures some parameters such as current,voltage,total power,power factor,frequency,and current and voltage harmonics,the used inverter from the type of grid inverter for the considered system.The results conclude that when the maximum solar radiation is reached,the maximum current can be obtained from the solar panels,thus obtaining the maximum power and power factor.Decreasing total voltage harmonic distortion,a current harmonic distortion within permissible limits using active harmonic distortion because this type is fast in processing up to 300 microseconds.The connection between solar stations and the national grid makes the system more efficient. 展开更多
关键词 Low-voltage grid photovoltaic(pv)system total harmonic distortion grid-connected pv system
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分体式太阳能PVT热泵系统试验运行性能分析
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作者 陆王琳 李政 姜山 《动力工程学报》 CAS CSCD 北大核心 2024年第10期1574-1581,共8页
在既有光伏组件的基础上,安装集热背板形成分体式PVT组件,搭建分体式PVT热泵系统试验台,在晴天和多云典型日2种工况下进行系统运行性能试验,将水箱内的水从常温加热到60℃。试验结果表明,在晴天和多云典型日下,系统平均COP分别为4.11和4... 在既有光伏组件的基础上,安装集热背板形成分体式PVT组件,搭建分体式PVT热泵系统试验台,在晴天和多云典型日2种工况下进行系统运行性能试验,将水箱内的水从常温加热到60℃。试验结果表明,在晴天和多云典型日下,系统平均COP分别为4.11和4.20,均高于相同工况下的空气源热泵;最大发电效率分别为13.2%和19.9%,PVT组件表面温度分布均低于40℃,有明显的降温提效作用;平均得热因子分别为48%和71%,无量纲压力损失系数保持在0.030~0.047,均流性较好。 展开更多
关键词 光伏光热 热泵 分体式 既有光伏
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A review on the cooling of energy conversion and storage systems using thermoelectric modules
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作者 Amirreza IJADI Mehran Rajabi ZARGARABADI +1 位作者 Saman RASHIDI Amir Mohammad JADIDI 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第6期1998-2026,共29页
Exploitation of sustainable energy sources requires the use of unique conversion and storage systems,such as solar panels,batteries,fuel cells,and electronic equipment.Thermal load management of these energy conversio... Exploitation of sustainable energy sources requires the use of unique conversion and storage systems,such as solar panels,batteries,fuel cells,and electronic equipment.Thermal load management of these energy conversion and storage systems is one of their challenges and concerns.In this article,the thermal management of these systems using thermoelectric modules is reviewed.The results show that by choosing the right option to remove heat from the hot side of the thermoelectric modules,it will be a suitable local cooling,and the thermoelectric modules increase the power and lifespan of the system by reducing the spot temperature.Thermoelectric modules were effective in reducing panel temperature.They increase the time to reach a temperature above 50℃ in batteries by 3 to 4 times.Also,in their integration with fuel cells,they increase the power density of the fuel cell. 展开更多
关键词 COOLING photovoltaic lithium-ion batteries fuel cell electronic equipment thermoelectric modules
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Maximizing Solar Potential Using the Differential Grey Wolf Algorithm for PV System Optimization
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作者 Ezhilmathi Nagarathinam Buvana Devaraju +4 位作者 Karthiyayini Jayamoorthy Padmavathi Radhakrishnan Santhana Lakshmi ChandraMohan Vijayakumar Perumal Karthikeyan Balakrishnan 《Energy Engineering》 EI 2024年第8期2129-2142,共14页
Maximum Power Point Tracking(MPPT)is crucial for maximizing the energy output of photovoltaic(PV)systems by continuously adjusting the operating point of the panels to track the point of maximum power production under... Maximum Power Point Tracking(MPPT)is crucial for maximizing the energy output of photovoltaic(PV)systems by continuously adjusting the operating point of the panels to track the point of maximum power production under changing environmental conditions.This work proposes the design of an MPPT system for solar PV installations using the Differential Grey Wolf Optimizer(DGWO).It dynamically adjusts the parameters of the MPPT controller,specifically the duty cycle of the SEPIC converter,to efficiently track the Maximum Power Point(MPP).The proposed system aims to enhance the energy harvesting capability of solar PV systems by optimizing their performance under varying solar irradiance,temperature and shading conditions.Simulation results demonstrate the effectiveness of the DGWO-based MPPT system in maximizing the power output of solar PV installations compared to conventional MPPT methods.This research contributes to the development of advanced MPPT techniques for improving the efficiency and reliability of solar energy systems. 展开更多
关键词 DGWO SEPIC converter MPPT pv module
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Electro-Optical Model of Soiling Effects on Photovoltaic Panels and Performance Implications
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作者 A.Asbayou G.P.Smestad +4 位作者 I.Ismail A.Soussi A.Elfanaoui L.Bouhouch A.Ihlal 《Energy Engineering》 EI 2024年第2期243-258,共16页
In this paper,a detailed model of a photovoltaic(PV)panel is used to study the accumulation of dust on solar panels.The presence of dust diminishes the incident light intensity penetrating the panel’s cover glass,as ... In this paper,a detailed model of a photovoltaic(PV)panel is used to study the accumulation of dust on solar panels.The presence of dust diminishes the incident light intensity penetrating the panel’s cover glass,as it increases the reflection of light by particles.This phenomenon,commonly known as the“soiling effect”,presents a significant challenge to PV systems on a global scale.Two basic models of the equivalent circuits of a solar cell can be found,namely the single-diode model and the two-diode models.The limitation of efficiency data in manufacturers’datasheets has encouraged us to develop an equivalent electrical model that is efficient under dust conditions,integrated with optical transmittance considerations to investigate the soiling effect.The proposed approach is based on the use of experimental current-voltage(I-V)characteristics with simulated data using MATLAB/Simulink.Our research outcomes underscores the feasibility of accurately quantifying the reduction in energy production resulting from soiling by assessing the optical transmittance of accumulated dust on the surface of PV glass. 展开更多
关键词 photovoltaics solar energy optical transmittance SOILING DUST pv performance
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Probabilistic Global Maximum Power Point Tracking Algorithm for Continuously Varying Partial Shading Conditions on Autonomous PV Systems
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作者 Kha Bao Khanh Cao Vincent Boitier 《Energy and Power Engineering》 2024年第1期21-42,共22页
A photovoltaic (PV) string with multiple modules with bypass diodes frequently deployed on a variety of autonomous PV systems may present multiple power peaks under uneven shading. For optimal solar harvesting, there ... A photovoltaic (PV) string with multiple modules with bypass diodes frequently deployed on a variety of autonomous PV systems may present multiple power peaks under uneven shading. For optimal solar harvesting, there is a need for a control schema to force the PV string to operate at global maximum power point (GMPP). While a lot of tracking methods have been proposed in the literature, they are usually complex and do not fully take advantage of the available characteristics of the PV array. This work highlights how the voltage at operating point and the forward voltage of the bypass diode are considered to design a global maximum power point tracking (GMPPT) algorithm with a very limited global search phase called Fast GMPPT. This algorithm successfully tracks GMPP between 94% and 98% of the time under a theoretical evaluation. It is then compared against Perturb and Observe, Deterministic Particle Swarm Optimization, and Grey Wolf Optimization under a sequence of irradiance steps as well as a power-over-voltage characteristics profile that mimics the electrical characteristics of a PV string under varying partial shading conditions. Overall, the simulation with the sequence of irradiance steps shows that while Fast GMPPT does not have the best convergence time, it has an excellent convergence rate as well as causes the least amount of power loss during the global search phase. Experimental test under varying partial shading conditions shows that while the GMPPT proposal is simple and lightweight, it is very performant under a wide range of dynamically varying partial shading conditions and boasts the best energy efficiency (94.74%) out of the 4 tested algorithms. 展开更多
关键词 photovoltaic pv Global Maximum Power Point Tracking GMPPT Fast Varying Partial Shading Conditions Autonomous pv Systems GMPPT Review
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Short-term prediction of photovoltaic power generation based on LMD-EE-ESN with error correction
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作者 YU Xiangqian LI Zheng 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2024年第3期360-368,共9页
Considering the instability of the output power of photovoltaic(PV)generation system,to improve the power regulation ability of PV power during grid-connected operation,based on the quantitative analysis of meteorolog... Considering the instability of the output power of photovoltaic(PV)generation system,to improve the power regulation ability of PV power during grid-connected operation,based on the quantitative analysis of meteorological conditions,a short-term prediction method of PV power based on LMD-EE-ESN with iterative error correction was proposed.Firstly,through the fuzzy clustering processing of meteorological conditions,taking the power curves of PV power generation in sunny,rainy or snowy,cloudy,and changeable weather as the reference,the local mean decomposition(LMD)was carried out respectively,and their energy entropy(EE)was taken as the meteorological characteristics.Then,the historical generation power series was decomposed by LMD algorithm,and the hierarchical prediction of the power curve was realized by echo state network(ESN)prediction algorithm combined with meteorological characteristics.Finally,the iterative error theory was applied to the correction of power prediction results.The analysis of the historical data in the PV power generation system shows that this method avoids the influence of meteorological conditions in the short-term prediction of PV output power,and improves the accuracy of power prediction on the condition of hierarchical prediction and iterative error correction. 展开更多
关键词 photovoltaic(pv)power generation system short-term forecast local mean decomposition(LMD) energy entropy(EE) echo state network(ESN)
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恶劣基建环境中BIPV光伏组件安装工艺的研究 被引量:1
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作者 于若甫 张燚骋 王二磊 《设备监理》 2024年第2期55-57,65,共4页
面对泥泞地面和大型机械难以进入等复杂条件,恶劣的建设环境对BIPV(光伏建筑一体化)项目构成了巨大挑战。本文旨在探讨在这些特殊条件下的安装实施策略,研究了在恶劣地面条件下BIPV组件的安装过程,介绍了一种适用于泥泞和恶劣地面条件... 面对泥泞地面和大型机械难以进入等复杂条件,恶劣的建设环境对BIPV(光伏建筑一体化)项目构成了巨大挑战。本文旨在探讨在这些特殊条件下的安装实施策略,研究了在恶劣地面条件下BIPV组件的安装过程,介绍了一种适用于泥泞和恶劣地面条件的光伏组件安装工具,总结了在恶劣建设环境下BIPV项目实施的项目实践,为在恶劣建设环境下进行BIPV项目建设提供参考和借鉴。 展开更多
关键词 光伏建筑一体机 光伏组件安装 恶劣环境 建设设备和工具
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PV Capacity Evaluation Using ASTM E2848: Techniques for Accuracy and Reliability in Bifacial Systems
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作者 Gautam Swami Kajal Sheth Dhvanil Patel 《Smart Grid and Renewable Energy》 2024年第9期201-216,共16页
A variety of test methodologies are commonly used to assess if a photovoltaic system can perform in line with expectations generated by a computer simulation. One of the commonly used methodologies across the PV indus... A variety of test methodologies are commonly used to assess if a photovoltaic system can perform in line with expectations generated by a computer simulation. One of the commonly used methodologies across the PV industry is an ASTM E2848. ASTM E2848-13, 2023 test method provides measurement and analysis procedures for determining the capacity of a specific photovoltaic system built in a particular place and in operation under natural sunlight. This test method is mainly used for acceptance testing of newly installed photovoltaic systems, reporting of DC or AC system performance, and monitoring of photovoltaic system performance. The purpose of the PV Capacity Test and modeled energy test is to verify that the integrated system formed from all components of the PV Project has a production capacity that achieves the Guaranteed Capacity and the Guaranteed modeled AEP under measured weather conditions that occur when each PV Capacity Test is conducted. In this paper, we will be discussing ASTM E2848 PV Capacity test plan purpose and scope, methodology, Selection of reporting conditions (RC), data requirements, calculation of results, reporting, challenges, acceptance criteria on pass/fail test results, Cure period, and Sole remedy for EPC contractors for bifacial irradiance. 展开更多
关键词 photovoltaic System Capacity ASTM E2848 Bifacial pv modules pv Capacity Testing pvSyst Simulation Solar Energy Performance Regression Modeling
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太阳能光伏光热PV/T组件在建筑设计中的应用
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作者 杨林艳 柴云娥 +3 位作者 顾金寿 魏巍 刘孝敏 刘叶瑞 《绿色建筑》 CAS 2024年第3期158-162,167,共6页
建筑领域“双碳”目标的提出,使得降低建筑能耗成为目前亟需解决的问题。可再生能源同建筑领域的有机结合被认为是解决建筑能耗的重要环节。通过对太阳能光伏光热技术的发展进行总结,研究太阳能光伏光热技术在建筑领域中的设计方法,提... 建筑领域“双碳”目标的提出,使得降低建筑能耗成为目前亟需解决的问题。可再生能源同建筑领域的有机结合被认为是解决建筑能耗的重要环节。通过对太阳能光伏光热技术的发展进行总结,研究太阳能光伏光热技术在建筑领域中的设计方法,提出了对未来光伏光热建筑一体化的设计思考,为以后太阳能光伏光热PV/T技术产业的发展提供参考。 展开更多
关键词 太阳能 光伏光热 pv/T 建筑能耗
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基于PVsyst的单面与双面光伏组件最佳安装倾角对比
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作者 刘鸿宇 李博斌 《太阳能》 2024年第6期87-94,共8页
随着光伏发电技术不断进步,单面光伏组件与双面光伏组件的价差不断缩小。得益于发电量增益大,双面光伏组件在实际项目中受到愈来愈多的青睐。当光伏发电项目采用单面或双面光伏组件时,光伏组件的最佳安装倾角成为一个重要的考虑因素。... 随着光伏发电技术不断进步,单面光伏组件与双面光伏组件的价差不断缩小。得益于发电量增益大,双面光伏组件在实际项目中受到愈来愈多的青睐。当光伏发电项目采用单面或双面光伏组件时,光伏组件的最佳安装倾角成为一个重要的考虑因素。选取了3个太阳能资源等级地区,利用PVsyst对在这3个地区建设的光伏电站分别采用单面和双面光伏组件时的安装倾角与光伏电站首年发电量及光伏组件正面接收的太阳辐照量之间的关系进行了仿真模拟。得到以下结论:1)以光伏电站首年发电量最大为衡量标准时,双面光伏组件的最佳安装倾角大于或等于有阴影遮挡的单面光伏组件的最佳安装倾角,但小于无阴影遮挡的单面光伏组件的最佳安装倾角。2)就单面光伏组件而言,无阴影遮挡条件下增加光伏组件安装倾角带来的发电量增益高于有阴影遮挡安装条件时。3)在无阴影遮挡情况下,在一定范围内增大单面光伏组件的安装倾角可以相应提升其发电量;相对于双面光伏组件,无阴影遮挡的单面光伏组件通过适当提高其安装倾角所获得的发电量增益较小,且增大安装倾角,光伏阵列之间的间距也需要相应增加,这会增大用地量,从而增加项目总成本。因此,在实际项目中,尽可能采用双面光伏组件是一个较为理想的选择。 展开更多
关键词 光伏电站 最佳安装倾角 发电量 单面光伏组件 双面光伏组件
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基于PVLIB的光伏组件串联数量计算条件及方法分析
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作者 邹海青 何志锋 王攀 《太阳能》 2024年第9期91-96,共6页
为得到更为高效且合理的光伏组件串联数量的计算条件和计算方法,选取位于不同纬度、不同气候类型的119个拟定项目地点,基于PVLIB和NASA的气象数据获取119个拟定项目地点的20年逐小时气象数据,对采用不同计算条件时得到的光伏组件开路电... 为得到更为高效且合理的光伏组件串联数量的计算条件和计算方法,选取位于不同纬度、不同气候类型的119个拟定项目地点,基于PVLIB和NASA的气象数据获取119个拟定项目地点的20年逐小时气象数据,对采用不同计算条件时得到的光伏组件开路电压及其对应的光伏组件串联数量进行了分析。分析结果显示:基于200 W/m^(2)太阳辐照度及历史最低气温计算得到的光伏组件串联数量与基于多年逐时气象数据计算得到的光伏组件串联数量结果相近,且计算方法较为简便,不需要长序列逐时气象数据,可用于光伏电站设计中光伏组件串联数的计算条件。 展开更多
关键词 光伏电站 光伏组件 光伏组串 开路电压 pvLIB 太阳辐照度
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半透明光伏组件在BIPV中的优化应用研究
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作者 刘铁凝 王沁芳 +1 位作者 许鸣 许国昕 《太阳能》 2024年第10期42-51,共10页
因半透明光伏组件能够同时实现光伏发电和保持透光性,其在现代绿色建筑中的应用潜力被广泛认可。采用数值模拟方法,基于半透明光伏组件在实际光伏建筑一体化(BIPV)项目中的适用性研究,进一步分析了其在满足建筑用能和采光质量条件下的... 因半透明光伏组件能够同时实现光伏发电和保持透光性,其在现代绿色建筑中的应用潜力被广泛认可。采用数值模拟方法,基于半透明光伏组件在实际光伏建筑一体化(BIPV)项目中的适用性研究,进一步分析了其在满足建筑用能和采光质量条件下的优化应用。研究结果表明:优化设计对改善建筑室内光环境和提升节能降碳效益具有积极影响,并确认了合理优化采光分布的重要性。研究结果为半透明光伏组件在BIPV中的应用提供了实用的设计策略和实践参考。 展开更多
关键词 光伏建筑一体化 半透明光伏组件 绿色建筑 建筑碳排放 自然采光
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一种新型PV AC Module的研究
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作者 胡茂 秦岭 +2 位作者 谢少军 罗松 候虚虚 《电源学报》 CSCD 2017年第4期105-111,共7页
为了解决传统的两级式光伏交流模块PV AC module存在的结构复杂、成本高、效率低等问题,提出了一种新型PV AC module。该AC module的前级为传统的Boost变换器,完成光伏组件的最大功率点跟踪和光伏接口电压的泵升;后级采用高增益集成式... 为了解决传统的两级式光伏交流模块PV AC module存在的结构复杂、成本高、效率低等问题,提出了一种新型PV AC module。该AC module的前级为传统的Boost变换器,完成光伏组件的最大功率点跟踪和光伏接口电压的泵升;后级采用高增益集成式逆变器,实现直流母线电压的泵升和并网发电功能。分析了PV AC module的系统结构,工作原理及控制策略,并通过一套250 W/40 kHz的样机仿真模型,验证了方案的可行性与理论分析的正确性。研究结果表明:该新型PV AC module具有结构简洁、控制简单、成本低、效率高等优点。 展开更多
关键词 光伏发电 光伏交流模块pvACmodule#升压 直流增益
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太阳能PV/T光储直驱热电联产系统性能 被引量:3
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作者 张东 刘鹏飞 +3 位作者 刘春阳 侯刚 惠博 安周建 《化工进展》 EI CAS CSCD 北大核心 2023年第6期2895-2903,共9页
面对居民日益增长的生活热水和电能需求,光伏/光热(photovoltaic/thermal,PV/T)技术的应用可以降低建筑运行时的能源消耗。本文介绍了一种太阳能PV/T光储直驱热电联产(combined heat and power,CHP)系统,为了减少系统运行过程中的能量损... 面对居民日益增长的生活热水和电能需求,光伏/光热(photovoltaic/thermal,PV/T)技术的应用可以降低建筑运行时的能源消耗。本文介绍了一种太阳能PV/T光储直驱热电联产(combined heat and power,CHP)系统,为了减少系统运行过程中的能量损失,采用直流压缩机和储能电池,并在兰州地区对系统的运行性能开展了实验测试。研究结果表明,PV/T系统的光伏板温度相比传统PV组件温度平均降低12.26℃,平均发电效率相对提升8.1%。在将24.4~27.2℃的水加热到50.1~50.7℃的过程中,平均性能系数(coefficient of performance,COP)可达到5.48,相比传统空气源热泵热水器提高82.1%~106.8%。平均集热效率和综合效率分别为37.30%和71.24%,PV/T系统的发电量和耗电量分别为3.33kWh和1.69kWh,发电量相比PV系统提高5.7%。太阳能PV/T光储直驱热电联产系统可以减少建筑部门的能源消耗,并提升PV/T系统的发电效率和综合效率,在晴天条件下可以实现离网运行。 展开更多
关键词 光伏/光热 直驱 热电联产 发电效率 集热效率
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