Space Solar Power and Wireless Transmission最新文献_第2页

High efficient C-band circularly polarized rectenna array with low-profile and lightweight

Space Solar Power and Wireless Transmission Pub Date : 2024-12-01 DOI: 10.1016/j.sspwt.2024.12.001

Zhou-Lin Fan, Shuo Cao, Xue-Xia Yang

{"title":"High efficient C-band circularly polarized rectenna array with low-profile and lightweight","authors":"Zhou-Lin Fan, Shuo Cao, Xue-Xia Yang","doi":"10.1016/j.sspwt.2024.12.001","DOIUrl":"10.1016/j.sspwt.2024.12.001","url":null,"abstract":"<div><div>A high efficient C-band circularly polarized rectenna array with low-profile and lightweight for wireless power transmission of space solar power stations is proposed and designed in this paper. The receiving antenna is an aperture-coupled microstrip quasi-square patch. The patch simultaneously excites two orthogonal modes of TM<sub>10</sub> and TM<sub>01</sub>, which have a phase difference of 90° by the perturbation method, so that the antenna operates in a circularly polarized state. The rectifier circuit is designed by microstrip lines in a parallel topology, and it consists of a stepped impedance matching network, a Schottky diode, two sector-branches as pass-through filter and a load. The input impedance of the rectifier and the characteristic impedance of the antenna feedline are both 50 <span><math><mi>Ω</mi></math></span> for being directly integrated into a rectenna. This rectenna has the advantages of low profile and scalability. The rectenna element, 3 × 3 and 4 × 4 subarrays are simulated and tested with good agreement being obtained. The measured results show that the rectification efficiencies of the element and the two subarrays are 73.1%, 72.7%, and 71.3% respectively at the center frequency of 5.76 GHz. Finally, a large rectenna array with 0.7 m aperture is designed to verify the scalability of the design. It will obtain 16.7 W of DC power at an efficiency of 65%. The rectenna has a profile of 1.61 mm and a surface density of less than 1.2 kg/m<sup>2</sup>.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 3","pages":"Pages 152-157"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143216623","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

Polarization design of microwave wireless transmission systems for moving targets

Space Solar Power and Wireless Transmission Pub Date : 2024-12-01 DOI: 10.1016/j.sspwt.2024.12.002

Qiankun Xu, Fengling Peng, Xing Chen

{"title":"Polarization design of microwave wireless transmission systems for moving targets","authors":"Qiankun Xu, Fengling Peng, Xing Chen","doi":"10.1016/j.sspwt.2024.12.002","DOIUrl":"10.1016/j.sspwt.2024.12.002","url":null,"abstract":"<div><div>Microwave wireless power transfer (WPT) technology enables the efficient, contactless transmission of energy through electromagnetic waves, with widespread applications in wireless charging, remote energy transmission, and satellite-based power harvesting, holding significant social, economic, and environmental implications. A ground-to-air WPT system is presented as a sample, this study investigates the impact of antenna polarization modes on the transmission efficiency of WPT systems for moving targets. Numerical simulations of transmission coefficients are conducted under various deflection angles, with transmission distances at both near-field (103 mm) and far-field (350 mm). The three polarization modes are single-line polarization (SL), dual-line polarization (DL), and circular polarization (CP). The results show that the polarization configuration with a single-line polarized transmitting array and a dual-line polarized receiving array (SL–DL) exhibits superior transmission efficiency. In the near field (103 mm), the linear transmission coefficient values of SL–DL are on average 0.08 and 0.06 higher compared to SL–SL and CP–CP at various angles, respectively. In the far field (350 mm), the corresponding transmission coefficient values increase by an average of 0.02 and 0.016.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 3","pages":"Pages 165-170"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143279104","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

Recent development of RF-to-dc rectifying technologies for wireless power transfer

Space Solar Power and Wireless Transmission Pub Date : 2024-12-01 DOI: 10.1016/j.sspwt.2024.12.003

Yuxiao Zhang, Deshuang Zhao, Shouhao Wang

引用次数: 0

Optimal design of antenna arrays for microwave power transmission with multiple receiving targets in the radiative near-field

Space Solar Power and Wireless Transmission Pub Date : 2024-12-01 DOI: 10.1016/j.sspwt.2024.11.001

Kunpeng Liu, Xun Li, Shuo Chen, Longfei Liu, Chunhuai Xue

{"title":"Optimal design of antenna arrays for microwave power transmission with multiple receiving targets in the radiative near-field","authors":"Kunpeng Liu, Xun Li, Shuo Chen, Longfei Liu, Chunhuai Xue","doi":"10.1016/j.sspwt.2024.11.001","DOIUrl":"10.1016/j.sspwt.2024.11.001","url":null,"abstract":"<div><div>This study proposes a method for maximizing the beam collection efficiency (BCE) for a microwave power transmission system with multiple receiving targets in the radiative near-field region. The electric and magnetic fields of the transmitting array are calculated via the superposition principle. Through theoretical derivation, the BCE maximization problem is simplified into finding the maximum ratio of two real quadratic forms. Based on the theory of matrices, the optimal BCE and its corresponding excitations of the transmitting array can be determined by finding the largest characteristic value and its associated characteristic vector. In practice, the required power for multiple receiving targets may be different. To meet this requirement, a BCE optimization model is established, considering the constraints of the problem of allocable power for each receiving target. A hybrid grey wolf optimizer and Nelder–Mead simplex method is adopted to address the optimization problem. To verify the effectiveness of the proposed method, numerical experiments on focusing the power radiated on two parallel receiving targets are conducted first. Then, two rotating receiving targets are employed to show its universality. Finally, three and four receiving targets are adopted to further evaluate the validity of the proposed method.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 3","pages":"Pages 137-147"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143216621","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

Technical challenges of space solar power stations: Ultra-large-scale space solar array systems and space environmental effects 空间太阳能发电站的技术挑战：超大规模空间太阳能电池阵列系统和空间环境影响

Space Solar Power and Wireless Transmission Pub Date : 2024-10-02 DOI: 10.1016/j.sspwt.2024.09.003

Weinan Zhang , Chengyue Sun , Ke Liu , Wenhao Shen , YiYong Wu , Liyong Yao , Qi Zhang , Wei Zhang , Li Wang

{"title":"Technical challenges of space solar power stations: Ultra-large-scale space solar array systems and space environmental effects","authors":"Weinan Zhang , Chengyue Sun , Ke Liu , Wenhao Shen , YiYong Wu , Liyong Yao , Qi Zhang , Wei Zhang , Li Wang","doi":"10.1016/j.sspwt.2024.09.003","DOIUrl":"10.1016/j.sspwt.2024.09.003","url":null,"abstract":"<div><div>Space solar power station (SSPS) are important space infrastructure for humans to efficiently utilize solar energy and can effectively reduce the pollution of fossil fuels to the earth’s natural environment. As the energy conversion system of SSPS, solar array is an important unit for the successful service of SSPS. Today, solar arrays represent the standard technology for providing energy for spacecraft, thanks to their high conversion efficiency and reliability/stability in orbit. With the development of solar arrays, many new materials, new photovoltaic devices and new control systems have emerged. Solar arrays are directly exposed to the space environment, and harsh environmental factors can degrade the performance. To ensure the long-term safe in-orbit service of SSPS as well as its ultra-large solar array, these new materials, devices, and control systems must operate certification and evaluation that can be used in space applications. In this review, the development history and research progress of SSPS and the corresponding space solar arrays are summarized and discussed, and the space environmental effects of solar arrays are analyzed at multiple levels (materials, devices, and systems). Finally, in response to the current space environmental effects of the ultra-large solar array used in the SSPS, future development trends and challenges are proposed.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 2","pages":"Pages 69-87"},"PeriodicalIF":0.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433239","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

Impact of solar cell failure on the performance of solar arrays in space 太阳能电池故障对空间太阳能电池阵列性能的影响

Space Solar Power and Wireless Transmission Pub Date : 2024-09-01 DOI: 10.1016/j.sspwt.2024.09.002

Qi Zhang, Junyi Lin, Naiying Fan, Yipeng Qie, Bin Su

{"title":"Impact of solar cell failure on the performance of solar arrays in space","authors":"Qi Zhang, Junyi Lin, Naiying Fan, Yipeng Qie, Bin Su","doi":"10.1016/j.sspwt.2024.09.002","DOIUrl":"10.1016/j.sspwt.2024.09.002","url":null,"abstract":"<div><div>Space solar power station adopts large-area solar arrays for efficient photovoltaic conversion, making it one of the best solutions to future energy problems. In-orbit failure of solar arrays can affect the service life of spacecraft, thereby it is crucial to comprehend the impact of solar cell failure on the electrical performance of solar arrays and propose appropriate circuit design criteria. The root cause of solar array failure is the degeneration of solar cells. In this paper, power loss caused by an open circuit or short circuit failure of solar cells in pure parallel and series–parallel circuits is described, and it reveals that an open circuit of the cell is more harmful in the pure parallel circuit, while a short circuit in the series–parallel circuit is more detrimental, which causes loss of electrical performance in series and parallel units, respectively. All conclusions have been validated through model calculations and corresponding experiments. The electrical loss is also influenced by the control mode. For the Maximum Power Point Tracking control mode favored by space solar power station, which can significantly increase generated power, application suggestions have been proposed based on the results of cell failure analysis. The research will provide a reference for circuit selection and boundary design for solar arrays, reducing the probability of solar array failure and saving the manufacturing and redeployment costs of space solar power station.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 2","pages":"Pages 108-114"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433212","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

Theoretical and experimental studies of retro-reflective antenna array for microwave power transmission from space solar power satellite to earth 用于从空间太阳能卫星向地球传输微波功率的逆反射天线阵列的理论和实验研究

Space Solar Power and Wireless Transmission Pub Date : 2024-09-01 DOI: 10.1016/j.sspwt.2024.05.002

Xin Wang , Huaiqing Zhang , Shiwei Dong , Xinbin Hou , Li Wang , Mingyu Lu

{"title":"Theoretical and experimental studies of retro-reflective antenna array for microwave power transmission from space solar power satellite to earth","authors":"Xin Wang , Huaiqing Zhang , Shiwei Dong , Xinbin Hou , Li Wang , Mingyu Lu","doi":"10.1016/j.sspwt.2024.05.002","DOIUrl":"10.1016/j.sspwt.2024.05.002","url":null,"abstract":"<div><div>The development of space solar power satellites aims to harvest solar power by artificial satellites over the earth’s geostationary orbit and then deliver the harvested power to the earth wirelessly. The retro-reflective antenna array technique is believed to be a close-to-optimal technical approach to achieve efficient wireless power transmission from a geostationary satellite to the earth, as it is capable of generating a microwave power beam aiming at a ground station on the earth via analyzing a pilot signal broadcasted by the ground station. In this paper, some of our preliminary research outcomes on retro-reflective antenna array for space solar power applications are reported. In the theoretical part of this paper, closed-form formulations with precision better than the classic theory of phased array are derived to analyze the performance of retro-reflective antenna array when the far zone condition is not satisfied between the space solar power satellite and the ground station. In the experimental part of this paper, a bench-scale retro-reflective antenna array with physical dimensions of about 0.6 m by 0.6 m is fabricated and tested. The theoretical and experimental results demonstrate that the microwave beam generated by a satellite-borne retro-reflective antenna array could be adjusted in real time to aim at the location from which the pilot signal stems. Based on the theoretical and experimental studies of this paper, systematic research endeavors are being conducted on the retro-reflective antenna array for space solar power applications.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 2","pages":"Pages 88-101"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433240","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

Terrestrial transparent green energy receiving system designed for Space Solar Power Station 为太空太阳能发电站设计的地面透明绿色能源接收系统

Space Solar Power and Wireless Transmission Pub Date : 2024-09-01 DOI: 10.1016/j.sspwt.2024.09.001

Ruinan Fan, Junlin Mi, Changjun Liu

{"title":"Terrestrial transparent green energy receiving system designed for Space Solar Power Station","authors":"Ruinan Fan, Junlin Mi, Changjun Liu","doi":"10.1016/j.sspwt.2024.09.001","DOIUrl":"10.1016/j.sspwt.2024.09.001","url":null,"abstract":"<div><div>In this manuscript, we proposed the concept of a terrestrial transparent energy receiving system for a Space Solar Power Station (SSPS), aiming at solving the problems of environmental destruction and the waste of land resources caused by the construction of large area rectenna arrays at the traditional terrestrial receiving system. We also fabricated a demonstration model of the new system. The system’s energy receiving and converting device consists of many rectenna arrays that are flexible, transparent, and matching network eliminated to harvest the microwave energy averaging about 80 mW/m<sup>2</sup> on the ground from the Solar Power Satellite (SPS). The rectenna unit of the system operates at 2.45 GHz, and the measured RF to DC conversion efficiency reaches 20% at −10 dBm and up to 64.65% at 6.8 dBm. As the rectenna array of the system has the advantages of both microwave energy harvesting and <span><span>light transmittance</span><svg><path></path></svg></span>, conventional solar panels can be placed underneath to collect sunlight and convert it into electricity. It is also feasible to build “self-powered” smart agricultural greenhouses for vegetable cultivation underneath so that the collected energy can be utilized locally to avoid the waste caused by long-distance transmission. The proposed system is of great significance to the research on environmental protection and efficient utilization of land resources at the terrestrial energy receiving system of the Space Solar Power Station.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 2","pages":"Pages 102-107"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433241","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

Laser wireless power transfer system design for lunar rover 月球车激光无线电力传输系统设计

Space Solar Power and Wireless Transmission Pub Date : 2024-09-01 DOI: 10.1016/j.sspwt.2024.09.005

Hongyan Xu , Bingchuan Du , Dele Shi , Xiujun Huang , Xinbin Hou

引用次数: 0

Research on PV array reconstruction and Full-cycle maximum power point tracking technology of space solar power station 空间太阳能电站光伏阵列重构与全周期最大功率点跟踪技术研究

Space Solar Power and Wireless Transmission Pub Date : 2024-09-01 DOI: 10.1016/j.sspwt.2024.09.004

Guoning Xu , Shuoyan Nie , Zhenyang Xiong

{"title":"Research on PV array reconstruction and Full-cycle maximum power point tracking technology of space solar power station","authors":"Guoning Xu , Shuoyan Nie , Zhenyang Xiong","doi":"10.1016/j.sspwt.2024.09.004","DOIUrl":"10.1016/j.sspwt.2024.09.004","url":null,"abstract":"<div><div>Space solar power station is an energy system that converts solar energy into electrical energy in the space environment and then transmits it to the space platform or ground using wireless power transmission technology. To improve the power generation and system efficiency of the space solar power station, an adaptive and reconfigurable photovoltaic array with multi-configuration is proposed, which can avoid large attenuation of the output power and efficiency of the photovoltaic array when the photovoltaic modules have a fault occurs or the receive different irradiation intensity. Then, according to the orbit area and light condition of the space solar power station, the operation mode are divided in detail. Furthermore, a novel full-cycle and multi-mode GMPPT (maximum power point tracking) strategy is proposed. Compared to the single mode MPPT, the control strategy has shorter response time, faster convergence and higher tracking accuracy. Through the above research, the output power and photoelectric conversion efficiency of space solar power station can be significantly improved.</div></div>","PeriodicalId":101177,"journal":{"name":"Space Solar Power and Wireless Transmission","volume":"1 2","pages":"Pages 115-128"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433213","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