Space Solar Power and Wireless Transmission最新文献

Adaptive beamforming for microwave power transmission: Mitigating ionospheric scintillation in real time 微波功率传输的自适应波束形成：实时减轻电离层闪烁

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 DOI: 10.1016/j.sspwt.2026.08.004

Dwi Prasetiyo

{"title":"Adaptive beamforming for microwave power transmission: Mitigating ionospheric scintillation in real time","authors":"Dwi Prasetiyo","doi":"10.1016/j.sspwt.2026.08.004","DOIUrl":"10.1016/j.sspwt.2026.08.004","url":null,"abstract":"<div><div>Space-based microwave power transmission (MPT) from a solar power satellite to a terrestrial rectenna must contend with ionospheric irregularities that induce rapid amplitude and phase fluctuations, collectively known as scintillation. These disturbances degrade beam pointing accuracy and power transfer efficiency unless corrected on millisecond timescales. This paper presents a real-time adaptive beamforming framework that exploits a time-division duplex (TDD) pilot-aided channel estimation loop to continuously track and pre-compensate the ionospheric transfer function. The proposed architecture places a co-located pilot beacon at the rectenna; the satellite array receives the beacon, estimates the instantaneous complex scintillation gains for every element, and applies conjugate weights for the high-power downlink transmission within the same coherence interval. A decoupled Kalman-filter estimator is derived that models the stochastic evolution of ionospheric amplitude and phase in terms of the widely used Nakagami-*m* and Gaussian-scintillation paradigms. Numerical simulations at 5.8 GHz for a 1000-element phased array under strong scintillation (<span><math><mrow><msub><mrow><mi>S</mi></mrow><mrow><mn>4</mn></mrow></msub><mo>=</mo><mn>0.8</mn></mrow></math></span>) demonstrate that the real-time adaptive scheme restores beam collection efficiency from a degraded 62% to over 94%, closely approaching the ideal diffraction-limited performance. The algorithm’s convergence, tracking error variance, and robustness to decorrelation time are quantified. A detailed hardware implementation analysis confirms that the required digital processing can be realized with current space-grade field-programmable gate arrays while respecting strict mass and power budgets. The results establish a viable path toward unconditionally stable, gigawatt-class MPT links for future space solar power stations.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 3","pages":"Pages 164-170"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149175729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency chain evolution and decomposition of microwave power transmission 微波功率传输效率链演化与分解

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 DOI: 10.1016/j.sspwt.2026.08.003

Shi-Wei Dong, Ying Wang, Xinbin Hou

引用次数: 0

Influence of tracking error on solar collection for space solar power station 空间太阳能电站跟踪误差对太阳能采集的影响

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 DOI: 10.1016/j.sspwt.2026.08.006

Jixiang Wei, Xiangfei Ji, Guanheng Fan

引用次数: 0

A modular, phased-array architecture for terawatt-scale space solar power stations: System design and orbital dynamics 太瓦规模空间太阳能电站的模块化相控阵架构：系统设计和轨道动力学

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 DOI: 10.1016/j.sspwt.2026.08.005

Diyan Daddu

{"title":"A modular, phased-array architecture for terawatt-scale space solar power stations: System design and orbital dynamics","authors":"Diyan Daddu","doi":"10.1016/j.sspwt.2026.08.005","DOIUrl":"10.1016/j.sspwt.2026.08.005","url":null,"abstract":"<div><div>A terawatt-class space solar power (SSP) infrastructure will require a scalable design that avoids the mass, assembly, and reliability limitations of monolithic orbital platforms. This paper presents a modular phased-array architecture in which a 2 TW space solar power system is built as a constellation of 400 identical 5 GW Space Solar Power Modules (SSPMs) operating in geostationary orbit. Each SSPM is a 4.3 km diameter filled circular aperture assembled from approximately 145,000 identical 10 m <span><math><mo>×</mo></math></span> 10 m Power Tiles. Each tile integrates thin-film triple-junction photovoltaics, solid-state 5.8 GHz microwave amplifiers, phase control electronics, and radiating antenna elements. The assembled SSPM functions as a coherent phased array capable of near-field focusing towards a dedicated terrestrial rectenna. A tailored amplitude taper and quadratic phase correction are used to generate an approximately flat microwave power-density profile over a ground receiving area while maintaining high beam-collection efficiency. The orbital dynamics of the low-areal-density structure are analysed with emphasis on solar radiation pressure, geopotential perturbations, gravity-gradient torque, and station-keeping requirements. A combined attitude and orbit control system using electric propulsion and control moment gyros is proposed to maintain beam-pointing accuracy, phase coherence, and constellation stability. The modular architecture enables incremental deployment, fault tolerance, distributed manufacturing, and a practical scaling path towards multi-terawatt space-based solar power.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 3","pages":"Pages 157-163"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149175727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Firm renewable microgrids enabled by space solar power: A system dynamics assessment of wireless transmission, storage displacement, and baseload decarbonization 空间太阳能使公司可再生微电网成为可能：无线传输、存储位移和基本负荷脱碳的系统动力学评估

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 DOI: 10.1016/j.sspwt.2026.08.002

Abdul Ghaffar

{"title":"Firm renewable microgrids enabled by space solar power: A system dynamics assessment of wireless transmission, storage displacement, and baseload decarbonization","authors":"Abdul Ghaffar","doi":"10.1016/j.sspwt.2026.08.002","DOIUrl":"10.1016/j.sspwt.2026.08.002","url":null,"abstract":"<div><div>Deep decarbonization of electricity systems is constrained not only by the cost of energy generation but also by the cost of reliability. Variable terrestrial solar and wind resources require storage, overbuild, and reserve capacity when they supply most electricity demand. Space solar power (SSP), delivered to terrestrial rectennas through wireless power transmission, offers a high-capacity-factor source of firm zero-carbon electricity that may change this system-level trade-off. This study develops a global system dynamics model that links SSP deployment, technology learning, regional renewable microgrid expansion, storage requirements, carbon constraints, and reduced-form dispatch from 2020 to 2060. Ten macro-regions are simulated under four scenarios: no SSP, early SSP introduction in 2035, delayed SSP introduction in 2045, and early SSP with accelerated learning. The model indicates that 215 GW of SSP by 2050 in the Early SSP scenario supplies 14.2% of global electricity while reducing battery energy requirements from 18.2 TWh to 10.5 TWh relative to the no-SSP pathway. The global average levelized cost of electricity falls from 48 to 41 USD/MWh in 2050, and residual power-sector CO2 emissions decline from 0.8 to 0.2 Gt/yr. Sensitivity analysis shows that SSP learning rate and end-to-end wireless transmission efficiency dominate adoption outcomes. The results suggest that SSP is best evaluated as a firm-capacity complement to terrestrial renewables rather than as a stand-alone replacement technology.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 3","pages":"Pages 149-156"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149175726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Space solar power and wireless energy transmission: Integrated technology, safety, and governance pathways for future clean energy infrastructure 空间太阳能和无线能源传输：未来清洁能源基础设施的综合技术、安全和治理途径

Space Solar Power and Wireless Transmission Pub Date : 2026-09-01 Epub Date: 2026-09-02 DOI: 10.1016/j.sspwt.2026.08.001

Mansoor Ahmad

{"title":"Space solar power and wireless energy transmission: Integrated technology, safety, and governance pathways for future clean energy infrastructure","authors":"Mansoor Ahmad","doi":"10.1016/j.sspwt.2026.08.001","DOIUrl":"10.1016/j.sspwt.2026.08.001","url":null,"abstract":"<div><div>Space solar power (SSP) is re-emerging as a strategic option for continuous low-carbon energy because orbital platforms can collect sunlight with limited diurnal interruption and transmit electricity to terrestrial or in-space receivers through wireless power transmission. This study develops an integrated synthesis of SSP system architecture, microwave and laser transmission pathways, safety controls, economic drivers, and regulatory requirements. The analysis compares candidate orbital configurations, power-beaming frequencies, photovoltaic materials, storage options, biological exposure limits, and levelized cost sensitivities. Microwave transmission at 2.45 GHz and 5.8 GHz remains the most mature route for grid-scale terrestrial delivery because of high conversion efficiency, low atmospheric attenuation, and established rectenna principles. Laser transmission provides a compact receiver footprint and is more appropriate for selected off-grid, lunar, or space-to-space applications, but it faces greater weather sensitivity and stricter optical safety requirements. The synthesis shows that technical feasibility depends on integrated progress in lightweight photovoltaics, high-efficiency solid-state amplifiers, robotic in-orbit assembly, thermal management, and autonomous beam-control systems. Economic viability is most sensitive to launch price, specific mass, end-to-end conversion efficiency, and the ability to phase demonstrations from kilowatt-scale orbital tests to megawatt pilots. The study concludes that SSP development requires coordinated technology maturation and a dedicated governance framework covering spectrum access, exposure limits, liability, environmental review, and transparent international verification.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 3","pages":"Pages 142-148"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149175725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accuracy analysis of space modular antenna deployable unit 空间模块化天线展开单元精度分析

Space Solar Power and Wireless Transmission Pub Date : 2026-06-01 Epub Date: 2026-03-17 DOI: 10.1016/j.sspwt.2026.03.002

Qiying Li, Jing Zhang, Chuang Shi, Yaliang Dou, Hongwei Guo, Rongqiang Liu

{"title":"Accuracy analysis of space modular antenna deployable unit","authors":"Qiying Li, Jing Zhang, Chuang Shi, Yaliang Dou, Hongwei Guo, Rongqiang Liu","doi":"10.1016/j.sspwt.2026.03.002","DOIUrl":"10.1016/j.sspwt.2026.03.002","url":null,"abstract":"<div><div>This paper focuses on the deployable unit of a space modular antenna as the research object. To enhance antenna accuracy, research on the optimization design of mechanism accuracy under the influence of hinge gaps is conducted. A hinge contact model considering gaps is established using finite element analysis software and introduced into the deployable unit of the modular antenna. Through end position accuracy analysis of four antenna deployable unit configurations, the impact patterns of hinge gaps on accuracy under different configurations are revealed. Based on the linear regression method, error sensitivity analysis quantifies the contribution weights of each hinge gap to accuracy, providing data support for establishing an optimization model. With optimal accuracy as the primary design objective, Pareto front method is adopted to carry out hinge gap optimization design, forming an optimized solution that balances cost and accuracy demands. The research results provide a theoretical basis and design references for the design and manufacture of high-accuracy space deployable antennas, which are of significant importance for improving the application performance of modular antenna systems in the aerospace field.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 2","pages":"Pages 79-87"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148575671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Configuration design and dynamics analysis of large-scale planar deployable antenna based on Hamiltonian circuits 基于哈密顿电路的大型平面可展开天线结构设计与动力学分析

Space Solar Power and Wireless Transmission Pub Date : 2026-06-01 Epub Date: 2026-03-13 DOI: 10.1016/j.sspwt.2026.03.001

Zhexuan Qian, Qiuyue Zhong, Qian Zhang, Jianguo Cai

{"title":"Configuration design and dynamics analysis of large-scale planar deployable antenna based on Hamiltonian circuits","authors":"Zhexuan Qian, Qiuyue Zhong, Qian Zhang, Jianguo Cai","doi":"10.1016/j.sspwt.2026.03.001","DOIUrl":"10.1016/j.sspwt.2026.03.001","url":null,"abstract":"<div><div>This paper presents a novel two-dimensional deployable planar antenna mechanism that targets the key challenges of large-aperture space structures, with an emphasis on improving stiffness and deployment reliability. Building on thick-panel origami theory, we develop a modular architecture that can be seamlessly scaled up to a 4 × 5 array while preserving consistent kinematic compatibility across modules. The central idea is to formulate folding/deployment paths as Hamiltonian circuits on a grid graph, which enables systematic generation and evaluation of candidate topologies. By enforcing a closed-loop (circuit) constraint, the resulting layouts provide continuous load-transfer paths and mitigate local compliance that commonly arises in open-chain designs. To validate the proposed concept, high-fidelity multibody dynamics models are implemented in the MuJoCo engine to assess deployment stability, convergence to the fully deployed state, and envelope efficiency. Simulation results demonstrate smooth, repeatable deployment without excessive oscillation, and confirm that the optimized closed-loop configuration maintains compact packaging while achieving markedly higher structural rigidity. In particular, modal analysis shows that the fundamental frequency of the optimized closed-loop topology is substantially higher than that of representative open-loop configurations., indicating a substantial improvement in global stiffness. Overall, the Hamiltonian-circuit-based design framework provides an effective and scalable route to robust, high-stiffness planar deployable antennas for next-generation large-scale space platforms.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 2","pages":"Pages 67-78"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148546379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robotic arm on-orbit assembly scheme for origami-derived deployable structural units 折纸衍生可展开结构单元的机械臂在轨装配方案

Space Solar Power and Wireless Transmission Pub Date : 2026-06-01 Epub Date: 2026-05-29 DOI: 10.1016/j.sspwt.2026.05.001

Fanqi Meng, Yinghong Wang, Xiaolong Ma, Meng Chen, Chongfeng Zhang

{"title":"Robotic arm on-orbit assembly scheme for origami-derived deployable structural units","authors":"Fanqi Meng, Yinghong Wang, Xiaolong Ma, Meng Chen, Chongfeng Zhang","doi":"10.1016/j.sspwt.2026.05.001","DOIUrl":"10.1016/j.sspwt.2026.05.001","url":null,"abstract":"<div><div>Under the current development trend of large-scale and modular space structures, on-orbit assembly has become a key technical support for the construction and functional expansion of large-scale complex aerospace structures. Aiming at the requirements of large-scale planar reconfiguration derived from origami, this paper proposes an on-orbit assembly scheme suitable for origami-derived deployable structural units. First, a multi-stage smooth trajectory is designed to ensure the precise alignment of the docking pose. Second, a lightweight neural network disturbance observer is proposed, which treats the large inertia and hinge clearance of the origami structural units as lumped disturbances for torque compensation, effectively suppressing distal chatter from the root and improving trajectory tracking accuracy. Finally, an adaptive compliant control algorithm is constructed to dynamically adjust parameters and modify the reference trajectory based on contact forces, achieving compliant buffering during the docking process. Co-simulation verification based on ADAMS and Simulink demonstrates that the proposed scheme not only significantly reduces the trajectory tracking error during the manipulator movement stage, but also strictly controls the multi-dimensional contact forces within safe thresholds during the docking stage. This provides a theoretical basis and technical support for the autonomous construction and morphological expansion of future large-scale space deployable and foldable structures.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 2","pages":"Pages 114-124"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148546739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and control of on-orbit assembly crawling robot for large space structure 大型空间结构在轨装配爬行机器人的设计与控制

Space Solar Power and Wireless Transmission Pub Date : 2026-06-01 Epub Date: 2026-04-07 DOI: 10.1016/j.sspwt.2026.03.003

Yongning Mai, Yudong Li, Mao Mao, Junxi Zhu, Shunan Wu

{"title":"Design and control of on-orbit assembly crawling robot for large space structure","authors":"Yongning Mai, Yudong Li, Mao Mao, Junxi Zhu, Shunan Wu","doi":"10.1016/j.sspwt.2026.03.003","DOIUrl":"10.1016/j.sspwt.2026.03.003","url":null,"abstract":"<div><div>This paper proposes a design and control scheme for a vision-based tri-pedal crawling robot system for collaborative on-orbit assembly tasks of modular large space structures, aiming to achieve efficient and universal precise assembly. Firstly, a kinematic model for the dual-robot system is established to describe their pose states, and a linear interpolation method is employed to calculate their motion trajectories. Then, a visual recognition system platform is developed to monitor the pose states in real-time, providing error compensation data to enhance the motion control accuracy of the robots. Furthermore, a synchronous clock and heartbeat packet protocol are integrated into the electromechanical system to ensure the real-time performance and reliability of information interaction. The truss design adopts a hybrid approach combining a central main magnet with four peripheral pin interfaces, which improves the connection stability and assembly fault tolerance. Finally, ground-based experiments demonstrate that the proposed on-orbit assembly system can complete the dual-robot collaborative assembly task under simplified laboratory conditions. The experimental results confirm the effectiveness and feasibility of the proposed system, as well as its potential for further development toward on-orbit assembly applications.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"3 2","pages":"Pages 88-97"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148575672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0