空间太阳能电站微波能量传输验证方案设计  

Microwave power transmission demonstration system design for Space Solar Power Station

作　　者：董亚洲[1,2] 董士伟[2] 王颖[1,2] 付文丽[2] 李小军[2] 高式昌[1] 韦高[1] 

机构地区：[1]西北工业大学电子信息学院,西安710129 [2]中国空间技术研究院西安分院空间微波技术重点实验室,西安710100

出　　处：《中国空间科学技术》2017年第3期11-18,共8页Chinese Space Science and Technology

基　　金：装备预研基金(9140A20090314HT05310)

摘　　要：微波能量传输技术作为空间太阳能电站(Space Solar Power Station,SSPS)的关键技术之一,目前的研究和验证工作均集中在各单项技术的突破和验证,缺乏针对SSPS系统特点的全面优化设计。文章根据SSPS的工作模式给出了全面验证空间太阳能电站微波能量传输的验证系统方案设计,对收发天线进行了一体化设计,利用了幅度近似高斯分布的发射阵列场分布设计和低反射的接收整流阵列设计,以高精度来波方向测量和高精度移相控制为波束指向控制的技术途径。对验证系统的波束收集效率进行了分析,收集效率可达94.2%,比传统均匀分布系统高出17.6%。验证系统可从系统规模缩比、波束扫描范围、发射天线口径场分布、整流天线处功率密度、反向波束控制方法等方面模拟SSPS微波能量传输工作模式,推动SSPS系统技术的发展。Microwave power transmission （MPT） is one of the key technologies in Space Solar Power Station （SSPS）. The state-of-the-art researches and validations only focus on individual technology but lack of comprehensive optimization for SSPS system. According to the operating mode of SSPS, a demonstration system was proposed to validate microwavepower transmission in SSPS. The transmitting antenna array and rectenna by using integrated processing with approximate Gaussian field distribution in transmitting antenna array and low reflection design in rectenna array. The beam control method in thesystem was based on direction of arrival estimation by sending pilot signal and beamsynthesis by controlling the phase shifters in the transmitting antenna array. The analyzedbeam collecting efficiency of demonstration system is 94. 2%〇 , about 17. 6%〇 higher than thetraditional uniform distribution system. The demonstration system comprehensively simulates the MPT of SSPS in several ways, including system scale minification, transmitting antenna field distribution, etc. , power density and beam controlling and it can be the promotion of SSPS development.

关 键 词：空间太阳能电站 微波能量传输 场分布 整流天线 

分 类 号：TM615[电气工程—电力系统及自动化]