检索结果-内蒙古大学图书馆

solar array power prediction of long endurance stratospheric aerostat using a hybrid model based on Blur Informer

solar ENERGY 2025年 287卷

作者： Zhang, Yiqing Huang, Tingshuang Zhao, Yuyu Jia, Zhongzhen Li, Yongxiang Xu, Guoning Chinese Acad Sci Aerosp Informat Res Inst 9 Dengzhuang South Rd Beijing 100094 Peoples R China Univ Chinese Acad Sci 1 Yanqi Lake East Rd Beijing 101408 Peoples R China

Stratospheric aerostat can operate in the stratosphere for months by utilizing solar power, making them a cost-effective platform for communication, Earth observation, meteorological data collection, and other applications. Accurate prediction of the power from solar arrays is crucial for stratospheric aerostat, as it determine the aerostat's hovering time and load power levels. This paper proposes a novel hybrid model combining an enhanced physical model and a Blur Informer to predict solar array power of stratospheric aerostat. The shortcomings of existing research methods are the lack of consideration for the multi-peak characteristics of maximum power point tracking(MPPT) and the impact of tiny shadow effects. The proposed physical model in this paper will address these shortcomings. Additionally, a Blur Informer deep learning model is used to refine physical model's error by capturing the impacts of posture change. The proposed model achieves the best results with lowest root mean square error(RMSE) and mean absolute error(MAE). Compared to the physical model, the hybrid model improved accuracy by 9.74%, and the accuracy of Blur Informer is also at least 21.7% higher than that of Informer and other time series forecasting models. The hybrid model proposed is applicable to spherical stratospheric aerostat.

关键词： Blur informer Output performance Stratospheric aerostat solar array Aerostat shadow SHAP analysis

来源：评论

学校读者我要写书评

暂无评论

A novel physics-based computational framework to model spacecraft solar array power under degradation: Application to European Space Agency (ESA) Cluster mission

引用

ACTA ASTRONAUTICA 2025年 226卷 341-348页

作者： Gaiatto, Carlo Sgorlon Antonello, Federico Segneri, Daniele Sousa, Bruno Palacios, Beatriz Abascal Schiavo, Anna Bartesaghi, Mauro Maass, Jan Inojosa, Aniris European Space Agcy European Space Operat Ctr Robert Bosch Str 5 D-64293 Darmstadt Germany Univ Padua Dept Phys & Astron Via Francesco Marzolo 8 I-35121 Padua Italy LSE Space GmbH Robert Bosch Str 16a D-64293 Darmstadt Germany Telespazio Germany GmbH Europapl 5 D-64293 Darmstadt Germany

Accurate modeling and simulation (M&S) of spacecraft solar array power under degradation is essential for mission planning, remaining useful life assessment, and lifetime extension. A relevant example is ESA's Cluster spacecraft fleet, launched in 2000 and operated at the European Space Operation Centre (ESOC), whose solar arrays have suffered severe degradation due to space radiation that has caused challenges to routine operations and mission planning. However, currently available physics-based and machine learning models have been proven ineffective in modeling the drastic reduction in power generation over the long operational life of the spacecraft. In response to these limitations, this work introduces a framework to model solar array degradation and predict power generation. It embeds a novel simplified physics-based model and a meta-heuristic optimization algorithm which exploits domain-specific knowledge and monitoring data for robust model parameter calibration and accurate power generation predictions. The results show the effectiveness of the proposed approach in avoiding overfitting and providing an accurate estimate of Cluster solar array power evolution.

关键词： Spacecraft solar array Degradation Calibration Modeling and simulation European Space Agency

来源：评论

学校读者我要写书评

暂无评论

Output power prediction of stratospheric airship solar array based on surrogate model under global wind field

引用

CHINESE JOURNAL OF AERONAUTICS 2025年第4期38卷

作者： Sun, Kangwen Liu, Siyu Gao, Yixiang Du, Huafei Cheng, Dongji Wang, Zhiyao Beihang Univ Sch Aeronaut Sci & Engn Beijing 100191 Peoples R China

Stratospheric airships are lighter-than-air vehicles capable of continuous flying for months. The energy balance of the airship is the key to long-duration flights. The stratospheric airship is entirely powered by the solar array. It is necessary to accurately predict the output power of the array for any flight state. Because of the uneven solar radiation received by the solar array, the traditional model based on components has a slow simulation speed. In this study, a data-driven surrogate modeling approach for prediction the output power of the solar array is proposed. The surrogate model is trained using the samples obtained from the high-accuracy simulation model. By using the input parameter preprocessor, the accuracy of the surrogate model in predicting the output power of the solar array is improved to 98.65%. In addition, the predictive speed of the surrogate model is ten million times faster than the traditional simulation model. Finally, the surrogate model is used to predict the energy balance of stratospheric airships flying throughout the year under actual global wind fields. (c) 2024 Production and hosting by Elsevier Ltd. on behalf of Chinese Society of Aeronautics and Astronautics. This is an open access article under the CC BY-NC-ND license (http://***/ licenses/by-nc-nd/4.0/).

关键词： Stratospheric airship solar array Output power Surrogate model Global wind field Energy balance

来源：评论

学校读者我要写书评

暂无评论

Design and Analysis of a Multi-panel solar array with Struts 17th

Design and Analysis of a Multi-panel Solar Array with Struts

引用

17th International Conference on Intelligent Robotics and Applications

作者： Ren, Shouzhi Liu, Ying Cui, Wenyan Guan, Shuai Jia, Wenwen Ren, Zhouyi Beijing Inst Spacecraft Syst Engn Beijing 100094 Peoples R China Univ Sci & Technol Beijing Sch Mech Engn Beijing 100083 Peoples R China

ISBN: (纸本)9789819607709;9789819607716

The solar array is a crucial energy source for satellites. Considering the trend towards miniaturization and rapid maneuverability in satellite technology, solar arrays must balance stowage efficiency and stiffness. This study first conducted an analysis of the structural features of high-stiffness solar arrays. Then, based on the practical requirements of a specific satellite, an innovative solar array design was proposed. This design incorporates a multi-panel solar array with Struts, specifically using three struts and two springs to stabilize and reinforce the outer panel among the two solar panels, thereby significantly enhancing the stiffness of the solar array. This paper conducts a finite element analysis model of the solar array to analyze its fundamental frequency in the deployed state. Additionally, a rigid-flexible multibody dynamics simulation model was established to facilitate a comprehensive understanding of the solar array deployment process. The simulation results validate the rationality and superiority of the design. Furthermore, this paper provides a comprehensive summary of the research and presents professional recommendations for designing high-stiffness solar arrays, to offer valuable references and insights for future related studies

关键词： solar array multi-panel strut high stiffness

来源：评论

学校读者我要写书评

暂无评论

Influence of the Unloading System on solar array Attitude Adjustment in Ground Tests

引用

Journal of Vibration Engineering and Technologies 2025年第5期13卷 1-14页

作者： Zhang, Yijia Wu, Zhiqiang Zhang, Shicheng Zhong, Hongliang Liu, Yuang Li, Yuehua Tianjin Key Laboratory of Nonlinear Dynamics and Control Tianjin University Tianjin 300350 China Tianjin Institute of Aerospace Mechanical and Electrical Equipment Tianjin 300458 China Tianjin Key Laboratory of Aerospace Intelligent Equipment Technology Tianjin 300458 China Beijing Institute of Spacecraft System Engineering Beijing 100094 China

Purpose: Conducting the attitude adjustment tests of the solar array on the ground is highly significant. However, the introduction of the gravity unloading system that can meet large-amplitude movements will cause changes in the dynamic characteristics of the system. This paper aims to guide the design of the unloading system by analyzing its influence and verify the reliability of the ground experiment. Methods: Polycondensation and Lagrangian energy method are used to establish a low-degree-of-freedom model, which can reflect the dynamic characteristics of the ground attitude adjustment system. Eigenvalue analysis and system response analysis are used to analyze the influence of the unloading system and its parameters. Results: Through eigenvalue analysis, it is found that the magnetic-pneumatic suspension unloading system adopted in this paper will introduce an additional mode to the attitude adjustment system, causing the original fundamental frequency of the system to split into two. By selecting a small mass for the hybrid magnetic element, the fundamental frequency error between the ground and space systems can be controlled within an acceptable range. The additional mode will be introduced at a relatively high frequency, minimizing its effect. Through the analysis of the response, it is found that the maximum value of the response of the system in the ground test state is mainly determined by the driving impact and is less affected by the unloading system. Therefore, it can reflect the space state well. However, due to the unloading system, both the fundamental frequency and the damping ratio show a decreasing trend, which will reduce the decay rate of the system, and will decrease further with the increase of the mass of the hybrid magnetic element. In addition, the synchronization of the vibrations between the simulator and the unloading system is also affected by the mass of the hybrid magnetic element. Conclusion: By reasonably designing the unloading s

关键词： Ground-space difference Magnetic-pneumatic suspension system Parameter influence SADA solar array

来源：评论

学校读者我要写书评

暂无评论

Developing a modelling environment of spacecraft solar array in low Earth orbit using real-time telemetry data

Franklin Open

引用

Franklin Open 2025年 11卷

作者： Mokhtar, Ahmed Ibrahim, Mohamed Hanafy, Mohamed E. ElTohamy, Fawzy H. Amer Elhalwagy, Yehia Z. Aircraft Electric Equipment Department Military Technical College Cairo Egypt Automatic Control Systems Department Military Technical College Cairo Egypt Vice Dean Faculty of Engineering Modern Sciences & Arts University (MSA) Giza Egypt

Spacecraft solar arrays convert sunlight into electrical energy to fulfil the energy requirements of various missions. This work proposes a comprehensive environment for accurate power operation predictions. Specifically, this environment simulates the behaviour of a body-mounted solar array. Furthermore, the designing and modelling processes of the solar array require considering different technical and practical constraints posed by the space environment. These challenges necessitate a thorough evaluation of all potential sources of losses and degradation. Compared to conventional approaches, our novel SSA model incorporates the complete spacecraft mission design scenario, thus it incorporates the operational cyclogram and power budget calculation. To substantiate our proposed method, telemetry data from the commercial LEOS-50 platform is leveraged to develop an experimental, mathematical, and thermal in-orbit model based on GaAs technology. This approach stands out for its exceptional accuracy in predicting the output power characteristics of solar panels. Therefore, it ensures achieving mission requirements from inception to completion in the beginning-of-life and end-of-life stages. The results demonstrate the success of the SSA operation in converting sunlight into electrical energy with a high conversion rate. © 2025 The Authors

关键词： Energy management and control EPS system design Low Earth orbit Orbit illumination solar array

来源：评论

学校读者我要写书评

暂无评论

solar array Power Prediction for Near-Space Vehicles Based on a Hybrid Method

引用

IEEE ACCESS 2022年 10卷 123233-123250页

作者： Gao, Yang Xu, Guoning Wang, Sheng Li, Yongxiang Cai, Rong Li, Zhaojie Yang, Yanchu Zhang, Yanlei Chinese Acad Sci Aerosp Informat Res Inst Beijing 100094 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

Compared with other energy sources in the near-space, solar energy is more renewable, stable, and accessible, which makes solar cells the main source of energy for long-endurance near-space vehicles. However, due to the limited solar cells laying area and complex flight conditions, near-space vehicles are facing tense energy supply situation during flight. Therefore, fast and accurately online power prediction of the solar array, which has important significance for power management, efficient use, and reliable operation of the energy system, is the key point to solving the situation at present. In this paper, a hybrid online power prediction method combined particle filter and power calculation model is proposed. Firstly, a comprehensive solar cell array power calculation model for the near-space vehicle is established. Then, the particle filter algorithm is used to estimate optimally the important parameters in the power calculation model with the flight data, to realize the dynamic, rapid, and accurate prediction of the power generation of the vehicle during flight. Finally, the data obtained from flight tests of the stratospheric aerostat and high-altitude scientific balloon are verified and compared with the other four models. The results demonstrate that the generation power prediction method proposed in this paper has higher prediction accuracy, which will be a good guiding significance for the actual flight of different types of near-space vehicles.

关键词： Predictive models Photovoltaic cells Data models Atmospheric modeling Mathematical models Power generation Analytical models Near-space vehicle solar array power prediction particle filter (PF) high-altitude balloon stratospheric aerostat

来源：评论

学校读者我要写书评

暂无评论

solar array design based on shadow analysis for increasing net energy collection in a competition vehicle

引用

JOURNAL OF PHOTONICS FOR ENERGY 2015年第1期5卷

作者： Osorio-Gomez, Gilberto Mejia-Gutierrez, Ricardo Suarez-Castaneda, Nicolas Gil-Herrera, Ana Barrera-Velasquez, Jorge Univ EAFIT Design Engn Res Grp Medellin 050022 Colombia

Photovoltaic (PV) applications such as in the architectural, automotive, and aerospace industries face design contradictions because they are expected to produce a lot of energy but are constrained by available area, surface shape, incident irradiance, shadows, and other aspects that have a negative influence on the energy produced by the solar panel. solar competition vehicles are some of these challenging PV applications. The design of such solar arrays needs to consider efficiency evaluation in order to optimize space;it is difficult not to install solar modules in areas impacted by shadows. A design procedure for a solar array configuration based on shadow analysis for competition vehicles is presented. The principle is that shadows in moving objects can be simulated, since the vehicle, the earth and the sun are are moving in semipredictable patterns, thus net energy collection can be forecast. The case study presented is the solar array design of a vehicle that participated in the World solar Challenge 2013. The obtained results illustrate how the employment of the procedure gives insights on important aspects to consider and also delivers qualitative and quantitative information for decision making. In addition, the experience in competition highlights some issues to be considered, modified, or improved in further vehicle designs. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

关键词： shadow analysis solar array power increase solar vehicle net efficiency

来源：评论

学校读者我要写书评

暂无评论

solar array layout optimization for stratospheric airships using numerical method

引用

ENERGY CONVERSION AND MANAGEMENT 2017年第Mar.期135卷 160-169页

作者： Lv, Mingyun Li, Jun Du, Huafei Zhu, Weiyu Meng, Junhui Beihang Univ Sch Aeronaut Sci & Engn 37 Xueyuan Rd Beijing 100191 Peoples R China

The solar array layout is one of the critical factors affecting the output performance of a solar array on a stratospheric airship. Optimizing the layout to improve output energy per day is very important for a long endurance vehicle, but the research about this subject is rare. This paper outlines a numerical method based on a rotating model of a stratospheric airship to optimize the solar array layout. Combined with the solar radiation model, the solar array layout optimization model applying genetic algorithm is developed using a MATLAB computer program in this paper. Compared with the design parameters of three stratospheric solar-powered airships, the theoretical model is proved to be feasible. In the course of the study, the effects of the starting point and the central angle of solar array are discussed in detail. In addition, the optimal results of the solar array layout for four common situations are investigated using the method. The results indicate that this method is helpful in the preparation stage for installing large area flexible solar arrays. (C) 2016 Elsevier Ltd. All rights reserved.

关键词： Layout optimization Stratospheric airship Numerical method solar array Genetic algorithm

来源：评论

学校读者我要写书评

暂无评论

Study on the Behavior of solar array Deployment with Root Hinge Drive Assembly

引用

Chinese Journal of Aeronautics 2012年第2期25卷 276-284页

作者： DING Xilun LI Xin XU Kun YANG Qiaolong PU Hailing Robotics Institute Beihang University Beijing 100191 China Beijing Institute of Spacecraft System Engineering Beijing 100094 China

In this paper, a method of using a root hinge drive assembly （RHDA） to control the solar array deployment is provided and a multi-DOF mechanism dynamic model of the system is established. In this way, the root hinge torque can be calculated iteratively. Then taking the predicted torque as a reference, a RHDA is designed for a large multiple-stage packaging and deployable solar array system. The control effect of the drive assembly is validated by ground tests. The test results indicate that the solar arrays can be deployed smoothly, and the deployment velocities are restricted by the drive assembly as expected. During the tests, the RHDA output speed and output torque are obtained. In order to examine the impact force when the yoke is lock-up with a hard stop, dynamics simulations are performed according to the actual behavior. The simulation result indicates that the designed RHDA reduces the impact force significantly and improves the lock-up reliability effectively.

关键词： solar array root hinge drive assembly multi-DOF model dynamics simulation reliability lock-up

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：