Space Solar Power and Wireless Transmission最新文献

Simultaneous three-harmonics matched power amplifier with 84.1% drain efficiency at 915 MHz for microwave power transfer 同时三次谐波匹配功率放大器，915 MHz时漏极效率84.1%，用于微波功率传输

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.09.004

Zihao Cheng , Weixu Xiong , Deshuang Zhao

引用次数: 0

Design of intra-cabin laser wireless power transmission system for spacecraft 航天器舱内激光无线电力传输系统设计

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.09.002

Xiujun Huang, Dele Shi, Hongyan Xu, Lei Zhao, Hao Zhan, Shihan Zhang, Chong Wang

引用次数: 0

Deviation analysis of space-to-earth microwave wireless power transmission 空地微波无线功率传输的偏差分析

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.09.003

Lu Zhou, Xinbin Hou

引用次数: 0

Investigation of the pyrolysis mechanism and structural evolution of polyimide under space environment based on molecular dynamics simulations 基于分子动力学模拟的空间环境下聚酰亚胺热解机理及结构演化研究

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.08.001

Qikun Yang, Li Zhang, Shengrui Zhou, Bilal Iqbal Ayubi

{"title":"Investigation of the pyrolysis mechanism and structural evolution of polyimide under space environment based on molecular dynamics simulations","authors":"Qikun Yang, Li Zhang, Shengrui Zhou, Bilal Iqbal Ayubi","doi":"10.1016/j.sspwt.2025.08.001","DOIUrl":"10.1016/j.sspwt.2025.08.001","url":null,"abstract":"<div><div>Polyimide (PI) is widely used in aerospace applications due to its excellent electrical insulation and thermal stability. However, prolonged exposure to high-temperature vacuum conditions in space can significantly compromise its structural integrity and reliability. To gain deeper insight into the pyrolysis behaviour and structural evolution of PI, this study employs molecular dynamics (MD) simulations to conduct full-scale dynamic tracking of the heating process from 300 K to 3800 K. The evolution of bond breakage, gas-phase product formation, and system free volume is monitored in real time. The results indicate that PI pyrolysis proceeds in three distinct stages: an initial induction phase, a rapid decomposition phase, and a prolonged evolution phase. Product analysis reveals that CO accounts for 47.3% of gaseous species, primarily originating from the cleavage of carbonyl groups in the imide ring; <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>O makes up 18.4%, closely related to hydroxyl radical recombination; and <span><math><msub><mrow><mi>C</mi></mrow><mrow><mn>5</mn></mrow></msub></math></span>-<span><math><msub><mrow><mi>C</mi></mrow><mrow><mn>10</mn></mrow></msub></math></span> hydrocarbon fragments constitute 15.6%, reflecting deep fragmentation and molecular rearrangement. As temperature increases from 300 K to 800 K, the free volume fraction rises from 16.9% to 27.7%, indicating significant structural relaxation and diffusion pathway expansion. This work elucidates the multi-stage cooperative mechanism of PI pyrolysis at the atomic level and provides a theoretical basis for improving thermal stability and evaluating service life in aerospace environments.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 3","pages":"Pages 117-123"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in high-efficiency wireless power reception using electromagnetic metasurfaces 利用电磁超表面的高效无线电力接收技术进展

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.09.001

Shuai Liu, Han Xiong, Huaiqing Zhang

{"title":"Advances in high-efficiency wireless power reception using electromagnetic metasurfaces","authors":"Shuai Liu, Han Xiong, Huaiqing Zhang","doi":"10.1016/j.sspwt.2025.09.001","DOIUrl":"10.1016/j.sspwt.2025.09.001","url":null,"abstract":"<div><div>Microwave wireless power transmission (MWPT) is a promising solution to future energy challenges, exhibiting strong potential in space-based solar power stations, unmanned aerial vehicle endurance extension, and powering Internet of Things (IoT) devices. However, conventional microwave power receivers (MPRs) suffer from issues such as low efficiency, structural complexity, and polarization sensitivity. Electromagnetic metasurfaces, with their ability to precisely manipulate electromagnetic waves, provide a new direction for overcoming these bottlenecks. This paper is a review that focuses on the series of research achievements made by our research team in the area of high-efficiency wireless power reception based on electromagnetic metasurfaces. Key innovations are introduced, including gradient-index metasurfaces, reflective phase-gradient metasurfaces, dual-matching strategies, polarization-insensitive designs, near-field reception structures, and direct-feed architectures. These methods enable effective conversion of incident waves into surface waves with precise energy concentration, significantly improving conversion efficiency from plane waves to surface waves, as well as RF-to-DC conversion efficiency. Meanwhile, the system architecture is greatly simplified, providing a robust foundation for the practical application of MWPT systems.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 3","pages":"Pages 143-151"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An all-metal heatsink microstrip antenna for wireless power transmission 用于无线电力传输的全金属散热微带天线

Space Solar Power and Wireless Transmission Pub Date : 2025-09-01 DOI: 10.1016/j.sspwt.2025.08.002

Jingjing Yang, Xin Wang, Huaiqing Zhang, Wenxiong Peng

{"title":"An all-metal heatsink microstrip antenna for wireless power transmission","authors":"Jingjing Yang, Xin Wang, Huaiqing Zhang, Wenxiong Peng","doi":"10.1016/j.sspwt.2025.08.002","DOIUrl":"10.1016/j.sspwt.2025.08.002","url":null,"abstract":"<div><div>An all-metal microstrip antenna with high gain, high efficiency, and heat-sinking capability is proposed for wireless power transmission (WPT). The antenna structure consists of a radiating patch and a cylindrical metal ring that shorts the patch to the ground. The metal ring also supports the patch so that the microstrip structure can be substrate-free, which improves the antenna’s radiation efficiency. The geometric parameters of the supportive metal ring are optimized with simulation results showing that a gain of 10.0 dBi and a radiation efficiency higher than 99.3% can be achieved. A prototype of the antenna is fabricated, assembled, and tested. The measurement results agree with the simulation very well. Moreover, simulation results show that the proposed dielectric-free structure serves as a heat sink when a power amplifier is integrated on the backside of the antenna ground. The heat from the amplifier can be effectively conducted to the radiating patch via the metal ring, which considerably reduces the temperature of the amplifier. The heat-sinking capability of the antenna is measured with a surface-mount ceramic chip as the heat source. The chip’s temperature with a thermal dissipation rate of 1 W is reduced from 80.1 °C to 66.7 °C without additional cooling devices. With the proposed antenna integrated with a class-F power amplifier, an active gain of 21.2 dBi is measured in the wireless power transmission experiment.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 3","pages":"Pages 124-130"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

One-dimensional linear distortion similitude research on concentrator unit for SSPS SSPS选矿厂单元一维线性畸变相似研究

Space Solar Power and Wireless Transmission Pub Date : 2025-06-01 DOI: 10.1016/j.sspwt.2025.02.003

Yingchun Du, Guanheng Fan, Dongxu Wang, Xintong Li

{"title":"One-dimensional linear distortion similitude research on concentrator unit for SSPS","authors":"Yingchun Du, Guanheng Fan, Dongxu Wang, Xintong Li","doi":"10.1016/j.sspwt.2025.02.003","DOIUrl":"10.1016/j.sspwt.2025.02.003","url":null,"abstract":"<div><div>The scaled-model thickness cannot be reduced by the same scaling factor as the length in similitude analysis of the space solar power station (SSPS) large-scale concentrator unit, resulting one-dimensional linear distortion. Thus, the complete scaling law is invalid, established by the traditional similitude analysis, reducing the prediction accuracy. To weaken the distortion effect, a chain separate similitude analysis method is presented to establish the distortion scaling law, thereby enhancing the prediction accuracy. First, a global scaling law is obtained based on dimensional analysis. Second, distortion model is formed by introduced a distortion coefficient, which allows for the global scaling law to be chain-separated into complete and partial similitude scales. Third, two sub-models of complete similitude and partial similitude are constructed respectively to weaken the distortion effect. Then, the scaling laws are established including complete and partial similitude, respectively. On this basis, the natural frequency distortion scaling law is derived. Finally, finite element models of the concentrator unit prototype and distortion model are developed to validate the suggested method. Through simulation analysis, the large-scale prototype first-order natural frequency predicted value is 28.34 Hz, while the theoretical value is 28.32 Hz. The prediction error of the first four orders’ natural frequency for the prototype is kept within 0.4%. Results indicate the proposed method can improve the accuracy by one order of magnitude compared to the existing methods, greatly weaken the distortion effect, and effectively solve the one-dimensional linear distortion problem.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 2","pages":"Pages 65-72"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconstruction of wear debris migration trajectory and analysis of motion characteristics in on-orbit spacecraft conductive slip rings 航天器在轨导电滑环磨损碎片迁移轨迹重建及运动特性分析

Space Solar Power and Wireless Transmission Pub Date : 2025-06-01 DOI: 10.1016/j.sspwt.2025.06.002

Juqi Wang , Shumin Zhang , Teng Zhang , Jikui Liu , Gang Zhou , Jiyang Zhang , Jian Wang

{"title":"Reconstruction of wear debris migration trajectory and analysis of motion characteristics in on-orbit spacecraft conductive slip rings","authors":"Juqi Wang , Shumin Zhang , Teng Zhang , Jikui Liu , Gang Zhou , Jiyang Zhang , Jian Wang","doi":"10.1016/j.sspwt.2025.06.002","DOIUrl":"10.1016/j.sspwt.2025.06.002","url":null,"abstract":"<div><div>The electrically charged wear debris generated inside the conductive slip ring of spacecraft not only exacerbates the wear of the ring channel but also causes distortion of the electric field, which can induce surface flashover in vacuum, seriously affecting the operational reliability of solar array panels. This study is based on the space station experimental cabin’s on-orbit technology testing platform, and it systematically investigates the wear debris migration behavior of the brush–slip ring mechanism. Through long-term on-orbit testing observations, a three-dimensional multiphysics coupling model was developed using a Monte Carlo-Finite Element joint algorithm. This model reveals the migration mechanism of wear debris under the combined effect of the electrostatic field and electron radiation field: debris without initial velocity primarily adheres to the metal ring surface; debris with initial velocity migrates towards the shield with a speed of up to 0.0136 m/s in the electrostatic field, while a small amount adheres to the side of the insulating baffle due to electric field distortion near the brush; under the electron radiation combined field, the surface potential reconstruction of the dielectric increases the local field strength to 2.2 × 10<sup>8</sup> V/m, significantly enhancing the migration trend of the debris towards the insulating baffle and causing the debris on the inner side of the shield to detach and impact the baffle. The study accurately reproduced the spatial distribution characteristics of the wear debris and revealed the discharge behavior induced by the debris through trajectory prediction models and comparison with on-orbit experimental data. This provides theoretical support for the insulation reliability design of space electromechanical products.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 2","pages":"Pages 81-90"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on decoupling equalization control strategy based on complex coupled inductors 基于复耦合电感的解耦均衡控制策略研究

Space Solar Power and Wireless Transmission Pub Date : 2025-06-01 DOI: 10.1016/j.sspwt.2025.06.003

Ze Wang , Qunhai Huo , Yuanli Lu , Lixin Wu , Xiaoqian Li , Meng Wei , Tongzhen Wei

{"title":"Research on decoupling equalization control strategy based on complex coupled inductors","authors":"Ze Wang , Qunhai Huo , Yuanli Lu , Lixin Wu , Xiaoqian Li , Meng Wei , Tongzhen Wei","doi":"10.1016/j.sspwt.2025.06.003","DOIUrl":"10.1016/j.sspwt.2025.06.003","url":null,"abstract":"<div><div>In this paper, a decoupling equalization control strategy based on complex coupled inductors is proposed to address the control difficulties caused by compound coupled inductors in the interleaved-parallel triple-coupled inductor-based boost converter (IP-TCIBC). First, the phase inductors are uncoupled from the output filter inductors by analyzing the decoupling and denationalizing the conductance matrices of the phase inductors to realize the phase inductor decoupling. The control block diagram is simplified by correcting the independent current inner loops of the two phases to identical type I systems, based on which the voltage–current dual closed-loop control is realized by adding a common voltage outer loop and rectifying it to a type II system. MATLAB/Simulink builds the closed-loop equalization control model, and the simulation verification shows that: under the proposed control strategy, the two-phase inductor currents are completely equal, the equalization effect is good and stable, and it is not affected by the disturbance of sudden change of internal resistance. The system has strong anti-interference ability, the voltage and current response is rapid during the sudden change of the load, and the dynamic performance is superior; the output voltage is stable, the overshooting amount is small, and the recovery time is fast. The results verify the correctness and effectiveness of the control strategy and provide new ideas and methods for solving the complex coupled inductor equalization control problems in DC–DC converters.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"2 2","pages":"Pages 91-100"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analytical and experimental investigations of magnetic field distribution for wireless power transfer system with Ferrite core 铁氧体磁芯无线输电系统磁场分布的分析与实验研究

Space Solar Power and Wireless Transmission Pub Date : 2025-06-01 DOI: 10.1016/j.sspwt.2025.06.005

Liying Zhu , Zhigang Liu , Liang Ma , Xianrui Zeng , Weiguo Lu

引用次数: 0