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Setting Standards From manufacturing equipment to exporting standards,China is powering the world with clean energy
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作者 GE LIJUN 《ChinAfrica》 2025年第11期51-53,共3页
China’s Dongfang Electric Machinery successfully completed the manufacturing of the first batch of embedded components for six turbines it is supplying for the Koysha Hydroelectric Dam project in Ethiopia.Transported... China’s Dongfang Electric Machinery successfully completed the manufacturing of the first batch of embedded components for six turbines it is supplying for the Koysha Hydroelectric Dam project in Ethiopia.Transported by land and sea,these parts will arrive on site in three months.Once completed,the power plant will generate more than 6 billion kwh of electricity annually,reducing carbon dioxide emissions by 1 million tonnes per year. 展开更多
关键词 carbon dioxide exporting standards hydroelectric dam carbon dioxide emissions power plant clean energy manufacturing equipment embedded components
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Powering Artificial Intelligence:How Artificial Intelligence’s Massive Energy Demands Are Reshaping the Future of Smart Grid
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作者 Bahman Zohuri Farhang Mossavar-Rahmani Mehdi Abedi-Varaki 《Journal of Energy and Power Engineering》 2025年第3期91-99,共9页
The rapid evolution and expanding scale of AI(artificial intelligence)technologies exert unprecedented energy demands on global electrical grids.Powering computationally intensive tasks such as large-scale AI model tr... The rapid evolution and expanding scale of AI(artificial intelligence)technologies exert unprecedented energy demands on global electrical grids.Powering computationally intensive tasks such as large-scale AI model training and widespread real-time inference necessitates substantial electricity consumption,presenting a significant challenge to conventional power infrastructure.This paper examines the critical need for a fundamental shift towards smart energy grids in response to AI’s growing energy footprint.It delves into the symbiotic relationship wherein AI acts as a significant energy consumer while offering the intelligence required for dynamic load management,efficient integration of renewable energy sources,and optimized grid operations.We posit that advanced smart grids are indispensable for facilitating AI’s sustainable growth,underscoring this synergy as a pivotal advancement toward a resilient energy future. 展开更多
关键词 AI smart grid energy demand data centers load balancing renewable integration grid modernization deep learning power consumption real-time monitoring AI in energy systems
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Powering Next-Generation Broadband Networks: ZTE's World-First Flexible, Configurable Router
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作者 ZTE Corporation 《ZTE Communications》 2013年第3期50-50,共1页
16 September 2013, Shenzhen--ZTE today unveiled the world's first flexible, reconfigurable terabit router that allows customers to build the highest-performance broadband networks. The terabit router supports the de... 16 September 2013, Shenzhen--ZTE today unveiled the world's first flexible, reconfigurable terabit router that allows customers to build the highest-performance broadband networks. The terabit router supports the deployment of multiple line cards with processing capabilities of 10 Gbps to 1 Tbps. It also supports the deployment of modules that can scale throughput from 200 Gbps to 18 Tbps. For easy installation in a range of environments, the router interfaces are flexible and the component design is loose-coupled. This allows customers to customize networks to their needs and promotes adaptability, consistency, and continuity. 展开更多
关键词 ZTE’s World-First Flexible Configurable Router powering Next-Generation Broadband Networks FLEXIBLE World
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Powering Up
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作者 Yu Nan 《ChinAfrica》 2017年第9期40-41,共2页
China is transforming the energy infrastructure landscape in Africa with large-sale electrifying projects.
关键词 powering Up CET
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Powering up Ghana
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作者 Francis L.Sackitey 《ChinAfrica》 2012年第1期28-28,共1页
MORE than 1,000 Ghanaians are benefiting directly by way of jobs from a $600 million Sunon Asogli Thermal Power Plant (Ghana) Limited project - a power generating plant established in the Kpone-Tema metropolis, one ... MORE than 1,000 Ghanaians are benefiting directly by way of jobs from a $600 million Sunon Asogli Thermal Power Plant (Ghana) Limited project - a power generating plant established in the Kpone-Tema metropolis, one of the highly industrialized metropolitan areas in Ghana. 展开更多
关键词 powering up Ghana PROJECT
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Research on Micro-vibration Generator for Powering Tire Pressure Alarm System
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作者 张文静 闫海涛 +2 位作者 郑喜明 闫震 王东平 《Agricultural Science & Technology》 CAS 2015年第2期400-403,共4页
In order to meet the self-powered requirement by microelectronic products and micro-electrostatic vibration generator and avoid the environmental pollution caused by waste batteries,many countries have started their r... In order to meet the self-powered requirement by microelectronic products and micro-electrostatic vibration generator and avoid the environmental pollution caused by waste batteries,many countries have started their researches on piezoelectric power generation based on the researches on the recovery device of rotational energy of piezoelectric effect.The piezoelectric power generation has many advantages compared with other generation patterns.The piezoelectric power generation has become a new field of research.In this study,the piezoelectric vibrators were used to convert energy.According to the requirements by tire pressure alarm system,the energy conversion and storage were researched and analyzed by using the passive sensing device used in automotive inspection.The converted energy was then provided to the alarm,achieving intelligent control and utilization of piezoelectric vibrators. 展开更多
关键词 Piezoelectric power generation TIRE Alarm system
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A Comprehensive Analysis of the Stability and Powering Performances of a Hard Sail-Assisted Bulk Carrier 被引量:1
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作者 Md Daluar Hussain Osman Md Amin 《Journal of Marine Science and Application》 CSCD 2021年第3期426-445,共20页
The wind-assisted propulsion system is becoming one of the most popular and efficient ways to reduce both fuel consumption and carbon dioxide emission from the ships.In this study,several analyses have been carried ou... The wind-assisted propulsion system is becoming one of the most popular and efficient ways to reduce both fuel consumption and carbon dioxide emission from the ships.In this study,several analyses have been carried out on a model of bulk carrier fitted with five rigid sails with a 180°rotating mechanism for maximum usage of wind power and a telescopic reefing mechanism for folding it during berthing.The stability of the ship has been verified through the calculations of initial stability,static stability,and dynamic stability through the fulfillment of the weather criterion using MAXSURF software.The structural analysis of the sail was carried out in ANSYS static structural module.Several flow simulations were carried out in ANSYS fluent module to predict the thrusts produced by the sails at different apparent wind angles,which would in turn reduce the thrust required from the propeller.In this way,the brake horse powers required for different sail arrangements were analyzed to find out a guideline for this wind propulsion system to generate better powering performances.To consider drift and yaw effect on propulsion system,an MMG mathematical model–based simulation was carried out for different drift angles of motion of the ship considering hard sail–based wind loads.Through these analyses,it has been found out that the hard sail–based wind-assisted propulsion system in some cases have produced a reduction of more than 30%brake power in straight ahead motion and around 20%reduction in case of drifting ships compared to the model having no sails. 展开更多
关键词 Wind-assisted propulsion system Fuel consumption Brake power Carbon dioxide emission Wing sail Bulk carrier Sail ship stability CFD simulations
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Engineering for Inclusion:Empowering Individuals with Physical and Neurological Differences through Engineering Invention,Research,and Development
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作者 Peter T.Cummings Philippe M.Fauchet +7 位作者 Michael Goldfarb Martha W.M.Jones Maithilee Kunda Jonathan B.Perlin Nilanjan Sarkar Keivan G.Stassun Zachary E.Warren Karl E.Zelik 《Engineering》 SCIE EI 2021年第2期141-143,共3页
1.Background The use of engineering tools,design,research,and thinking to create environments and capabilities whereby individuals who are currently under-employed or unemployed due to a physical disability(e.g.,amput... 1.Background The use of engineering tools,design,research,and thinking to create environments and capabilities whereby individuals who are currently under-employed or unemployed due to a physical disability(e.g.,amputation or spinal cord injury)or neurological difference(e.g.,autism)are enabled to become fully productive and employed members of society has been the implicit goal of decades of research at Vanderbilt University and elsewhere.At Vanderbilt University,progress in these areas has been greatly facilitated by the proximity of the School of Engineering to the world-class Vanderbilt University Medical Center and the resulting close collaboration between engineering and medical researchers. 展开更多
关键词 HAS environments power
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Empowering industries in the digital era
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《China Standardization》 2020年第6期5-5,共1页
Data management experts met on September 21,2020 in Beijing and online at the 2020 National Big Data Standardization Conference and the 7th plenary meeting of the big data working group of National Information Securit... Data management experts met on September 21,2020 in Beijing and online at the 2020 National Big Data Standardization Conference and the 7th plenary meeting of the big data working group of National Information Security Standardization Technical Committee(SAC/TC 28),sharing and exchanging the progress and prospects in the area. 展开更多
关键词 POWER SHARING MANAGEMENT
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"Empowering Youth through Innovation and Entrepreneurship" Forum on Youth Development, Innovation and Entrepreneurship
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《International Understanding》 2024年第3期36-38,共3页
On 26 July,a parallel session of the Seventh China-Africa People's Forum&the Seventh China-Africa Young Leaders Forum-Forum on Youth Development,Innovation and Entrepreneurship was held in Yiyang.
关键词 ENTREPRENEURSHIP AFRICA POWER
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Powering Production
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作者 DERRICK SILIMINA 《ChinAfrica》 2023年第6期44-45,共2页
China helps to diversify Zambia’s energy output to tackle chronic electricity shortages Innocent Gondwe tries to put up a smile as he uses his welding machine anxiously to finish his work in time in order to get paid... China helps to diversify Zambia’s energy output to tackle chronic electricity shortages Innocent Gondwe tries to put up a smile as he uses his welding machine anxiously to finish his work in time in order to get paid,before a scheduled power cut.But he is unable to fully hide the pain in his eyes caused by the frequent power cuts that are a!ecting his business,which solely depends on electricity supply from ZESCO,Zambia’s major power utility company.After dropping out of school,Gondwe went all out to establish himself as an artisan to earn a living in Kalingalinga,one of the slums in Lusaka,Zambia’s capital. 展开更多
关键词 ELECTRICITY WELDING POWER
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Empowering the grid:Unveiling innovations shaping the future of new-type power systems
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作者 Jinliang He 《iEnergy》 2023年第4期251-251,共1页
The fourth issue of iEnergy in 2023 has arrived,with 11 papers published,including 2 news and views,2 highlights,1 letter,3 review articles,and 3 original research articles.The dynamics of contemporary power systems a... The fourth issue of iEnergy in 2023 has arrived,with 11 papers published,including 2 news and views,2 highlights,1 letter,3 review articles,and 3 original research articles.The dynamics of contemporary power systems are undergoing a profound metamorphosis.The once-linear energy flow from centralized sources is giving way to a distributed and diverse energy landscape. 展开更多
关键词 POWER LETTER SHAPING
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Powering Up
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作者 GODFREY OLUKYA 《ChinAfrica》 2024年第7期38-39,共2页
Uganda launches giant China-constructed hydropower plant to bolster its electricity supply,and also assist South Sudan with theirs Ugandans and South Sudanese have had their lives lit up by the steady flow of electric... Uganda launches giant China-constructed hydropower plant to bolster its electricity supply,and also assist South Sudan with theirs Ugandans and South Sudanese have had their lives lit up by the steady flow of electricity from a massive hydropower infrastructure project,constructed by one of China’s leading contractors. 展开更多
关键词 MASSIVE ELECTRICITY POWER
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Empowering the Voice: The Reconstruction of Female Discourse from Shakespeare’s Hamlet to Updike’s Gertrude and Claudius
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作者 黄晓露 《海外英语》 2021年第8期210-211,221,共3页
There are abound with the deconstruction of classic works in recent years,among which Updike’s Gertrude and Claudius is undoubtedly an impressive one.Updike completed the antecedent part of Shakespeare’s play Hamlt.... There are abound with the deconstruction of classic works in recent years,among which Updike’s Gertrude and Claudius is undoubtedly an impressive one.Updike completed the antecedent part of Shakespeare’s play Hamlt.Noticeably,this new prequel of Hamlet,from the mindset of female,takes Queen Gertrude as the narrative center and airs Gertrude’s psychological states to break the confinement of female discourse in Shakespeare’s plays.Hinged on Foucault’s theory of power and discourse,this paper attempts to analyze how Updike manifests women’s endeavors to assert preserve and construct their discourse,break the aphasia and even challenge the voice of male authority by elucidating the interactions between Queen Gertrude and other crucial male roles in the full text in order to navigate readers in-depth to scrutinize the changes of women’s social status in different era. 展开更多
关键词 GERTRUDE power and discourse HAMLET female discourse
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病种成本可视化分析系统设计与构建
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作者 郭志武 何智聪 +5 位作者 杨金龙 李小慰 翁郁明 杨献超 宋贞洁 杜飒 《中国医院统计》 2026年第1期66-70,75,共6页
目的探讨病种成本可视化分析系统的设计与构建。方法选择Power BI作为可视化分析工具。采集病种成本相关数据,导入Power BI并建立数据模型,编写度量值。采用Power BI Desktop设计可视化界面,对分析结果进行可视化展示,构建完整的病种成... 目的探讨病种成本可视化分析系统的设计与构建。方法选择Power BI作为可视化分析工具。采集病种成本相关数据,导入Power BI并建立数据模型,编写度量值。采用Power BI Desktop设计可视化界面,对分析结果进行可视化展示,构建完整的病种成本可视化分析系统。结果可视化分析系统从总体概况、科室成本分析、DRG成本分析、DIP成本分析及病种成本分析五个角度进行分析展示,展示内容丰富,具有良好的洞察与分析效果。结论本研究应用Power BI快速实现了病种成本可视化分析系统的构建。病种成本可视化分析系统可为精细化管理和决策提供有效支持。 展开更多
关键词 病种成本 费用成本转换法 可视化分析 Power BI
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基于动态Power迭代的大语言模型微调算法
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作者 匡豪 刘波 +2 位作者 李辉越 曾闰 段围 《计算机科学与探索》 北大核心 2026年第3期785-800,共16页
随着大语言模型在各领域的广泛应用,微调成为其适配特定任务的重要方法。当前主流的大模型微调方法主要分为部分微调和全量微调两种。部分微调虽能降低计算开销,但该方法仅更新大模型的少量参数,导致在复杂任务场景下,微调出的模型性能... 随着大语言模型在各领域的广泛应用,微调成为其适配特定任务的重要方法。当前主流的大模型微调方法主要分为部分微调和全量微调两种。部分微调虽能降低计算开销,但该方法仅更新大模型的少量参数,导致在复杂任务场景下,微调出的模型性能受限;虽然全量微调可以解决这一问题,但全量微调需要全面更新模型参数,从而导致微调时会存在计算资源需求高、微调时间长等问题。为解决全量微调存在的问题,提出一种基于动态Power迭代的梯度低秩投影算法(DPI-GLRP)。该方法基于秩一矩阵近似的思想,将大模型的权重矩阵在反向传播阶段产生的梯度矩阵分解为多个秩一矩阵,并通过Power迭代算法求解前r个特征向量以构成投影矩阵。该方法不仅解决了传统Power迭代只能获取单一最大特征向量的问题,还解决了以往研究中使用奇异值分解构建投影矩阵时间复杂度高、微调时间长的问题。对传统Power迭代算法进行研究发现,在特征值分布接近时,会出现收敛速度慢的问题。针对这一问题,提出一种动态Power迭代算法,该算法通过自适应调整迭代参数加快特征向量的计算效率,并从理论上证明提出的动态Power迭代算法的收敛效率比传统Power迭代要高。在LLaMA、Qwen等大模型上的实验表明,相较于LoRA等主流算法,DPI-GLRP算法能在保持或提升模型能力的同时,显著缩短微调时间,平均微调时间最多减少了80%。 展开更多
关键词 大语言模型 微调 梯度低秩投影 Power迭代
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Enhancing the powering ability of triboelectric nanogenerator through output signal’s management strategies 被引量:2
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作者 Changxin Qi Zhenyue Yang +3 位作者 Jinyan Zhi Ruichao Zhang Juan Wen Yong Qin 《Nano Research》 SCIE EI CSCD 2023年第9期11783-11800,共18页
As a new branch of efficient and low-cost mechanical energy conversion technology,triboelectric nanogenerator(TENG)is a potential solution to provide a long-term power supply for the Internet of Things(IoT)sensors and... As a new branch of efficient and low-cost mechanical energy conversion technology,triboelectric nanogenerator(TENG)is a potential solution to provide a long-term power supply for the Internet of Things(IoT)sensors and portable electronic devices.However,due to inherent working properties of TENG itself such as extremely high internal impedance,pulse,and alternating current(AC)output,TENG can not directly supply power to loads such as batteries efficiently.Based on these,we describe TENG’s performance from a new perspective of powering ability.It consists of two aspects:the ability to transport charge effectively and the ability to output high power quality current steadily.In order to push forward the developments and applications of TENG,it is necessary to improve its power supply capacity from different perspectives.Fortunately,in recent years,a variety of output signal’s management strategies aiming at effectively managing the generated electricity and significantly improving powering ability of TENG have obtained significantly progress.Herein,this paper discusses the working mechanisms and different load characteristics of TENG at first to clarify the electric performance of TENG.Then,on basis of theoretical analysis,the output signal’s management strategies are elaborated from four aspects:improving the cycle output electricity of TENG,increasing the surface charge density of TENG,improving the power quality of TENG-based energy harvesting system,promoting the application of TENG through integrated circuit(IC)technology and TENG network,and the relevant principles and applications are discussed systematically.Finally,the advantages and disadvantages of the above output signal’s management strategies are summarized and discussed,and the future development of the output signal’s management strategies for TENG is prospected. 展开更多
关键词 triboelectric nanogenerator(TENG) inherent working properties TENG-based energy harvesting system powering ability output signal’s management strategies.
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Exergy-energy analysis of full repowering of a steam power plant 被引量:2
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作者 S. NIKBAKHT NASERABAD A. MEHRPANAHI M. R. ALIGOODARZ K. MOBINI 《Frontiers in Energy》 SCIE CSCD 2015年第1期54-67,共14页
A 320 MW old steam power plant has been chosen for repowering in this paper. Considering the technical conditions and working life of the power plant, the full repowering method has been selected from different repowe... A 320 MW old steam power plant has been chosen for repowering in this paper. Considering the technical conditions and working life of the power plant, the full repowering method has been selected from different repowering methods. The power plant repower- ing has been analyzed for three different feed water flow rates: a flow rate equal to the flow rate at the condenser exit in the original plant when it works at nominal load, a flow rate at maximum load, and a flow rate when all the extractions are blocked. For each flow rates, two types of gas turbines have been examined: V94.2 and V94.3A. The effect of a duct burner has then been investigated in each of the above six cases. Steam is produced by a double- pressure heat recovery steam generator (HRSG) with reheat which obtains its required heat from the exhaust gases coming from the gas turbines. The results obtained from modeling and analyzing the energy-exergy of the original steam power plant and the repowered power plant indicate that the maximum efficiency of the repowered power plant is 52.04%. This maximum efficiency occurs when utilizing two V94.3A gas turbines without duct burner in the steam flow rate of the nominal load. 展开更多
关键词 full repowering exergy analysis V94.2 andV94.3A gas turbines double-pressure HRSG duct burner Bandarabbas steam power plant EFFICIENCY
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数智化背景下大数据财务分析人才培养改革与实践研究
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作者 亢俊虹 王静 《中国集体经济》 2026年第1期185-188,共4页
随着大数据、人工智能快速发展,传统的大数据财务分析课程教学模式面临前所未有的挑战与机遇。文章通过分析大数据财务分析课程现状及问题,介绍财务分析工具Power BI及应用场景,提出大数据财务分析课程改革措施,系统探讨了数智化背景下... 随着大数据、人工智能快速发展,传统的大数据财务分析课程教学模式面临前所未有的挑战与机遇。文章通过分析大数据财务分析课程现状及问题,介绍财务分析工具Power BI及应用场景,提出大数据财务分析课程改革措施,系统探讨了数智化背景下大数据财务分析课程的改革需求与实践路径,构建了一套完整的课程体系,旨在培养适用时代的大数据财务人才。 展开更多
关键词 数智化 大数据财务分析课程 Power BI
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Cost effective technologies for long range microwave wireless power transmission
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作者 CHOI Joon-Min KIM Dae-Kwan +3 位作者 PARK Durk-Jong YI Sang-Hwa KIM Dong-Min KO Dae-Ho 《中国空间科学技术(中英文)》 北大核心 2026年第1期122-134,共13页
Space-Based Solar Power(SBSP) presents a promising solution for achieving carbon neutrality and Renewable Electricity 100%(RE100) goals by offering a stable and continuous energy supply. However, its commercialization... Space-Based Solar Power(SBSP) presents a promising solution for achieving carbon neutrality and Renewable Electricity 100%(RE100) goals by offering a stable and continuous energy supply. However, its commercialization faces significant obstacles due to the technical challenges of long-distance microwave Wireless Power Transmission(WPT) from geostationary orbit. Even ground-based kilometer-scale WPT experiments remain difficult because of limited testing infrastructure, high costs, and strict electromagnetic wave regulations. Since the 1975 NASA-Raytheon experiment, which successfully recovered 30 kW of power over 1.55 km, there has been little progress in extending the transmission distance or increasing the retrieved power. This study proposes a cost-effective methodology for conducting long-range WPT experiments in constrained environments by utilizing existing infrastructure. A deep space antenna operating at 2.08 GHz with an output power of 2.3 kW and a gain of 55.3 dBi was used as the transmitter. Two test configurations were implemented: a 1.81 km ground-to-air test using an aerostat to elevate the receiver and a 1.82 km ground-to-ground test using a ladder truck positioned on a plateau. The rectenna consists of a lightweight 3×3 patch antenna array(0.9 m × 0.9 m), accompanied by a steering device and LED indicators to verify power reception. The aerostat-based test achieved a power density of 154.6 mW/m2, which corresponds to approximately 6.2% of the theoretical maximum. The performance gap is primarily attributed to near-field interference, detuning of the patch antenna, rectifier mismatch, and alignment issues. These limitations are expected to be mitigated through improved patch antenna fabrication, a transition from GaN to GaAs rectifiers optimized for lower input power, and the implementation of an automated alignment system. With these enhancements, the recovered power is expected to improve by approximately four to five times. The results demonstrate a practical and scalable framework for long-range WPT experiments under constrained conditions and provide key insights for advancing SBSP technology. 展开更多
关键词 wireless power transmission space-based solar power deep space antenna DSP KDSA KARI RECTENNA AEROSTAT
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