新型机电一体化微磁力矩器设计与实现  

Design and Implementation of a Novel Electro-Mechanical Integrated Micro Magnetorquer

作　　者：袁德虎 孙俊 武海雷 沈国明 刘超镇 YUAN Dehu;SUN Jun;WU Hailei;SHEN Guoming;LIU Chaozhen(Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109,China;Shanghai Aerospace Control Technology Institute,Shanghai 201109,China)

机构地区：[1]上海市空间智能控制技术重点实验室,上海201109 [2]上海航天控制技术研究所,上海201109

出　　处：《上海航天（中英文）》2020年第5期67-72,共6页Aerospace Shanghai（Chinese&English）

基　　金：科技部国家重点研发计划专项基金(2016YFB0501000);上海市科技人才计划项目(16XD1421000)。

摘　　要：现代微小卫星的发展需要磁力矩器具备轻量化、低功耗、小型化、集成化等特点。提出了一种新的微型磁力矩器设计方式,采用机电一体化设计思想,使控制电路内嵌于支架的端面上,实现了磁力矩器结构和驱动电路的集成化和整体结构的小型化,明显优于传统的分离设计方式。采用单绕组线圈+脉冲宽度调制(PWM)换向驱动控制的形式,相比常规的双绕组线圈电流幅度控制形式,线圈的重量和体积都减少了一半,功耗更低,控制更加简便。驱动电路具有电流采样功能,可以实现闭环控制,相对于传统的开环控制策略控制精度更高。此外还对磁力矩器的线圈参数和磁芯参数进行了最优设计。所设计的磁力矩器在某微小卫星上已成功应用,表明了该设计方案的有效性和优越性。The development of modern micro satellite requires micro magnetorquer to have characteristics such as light weight,low power consumption,miniaturization,and integration.In this paper,a novel micro magnetorquer is designed,in which the idea of electro-mechanical integration is adopted,the driving circuit is embedded in the end surface of the bracket,and both the integration of the magnetorquer structure and the driving circuit and the whole size miniaturization are implemented.Compared with the traditional separation design method,the proposed design method is obviously better.The signal-winding coil+pulse width modulation(PWM)control driving method is adopted.Compared with the common double-winding coil+current amplitude control driving method,both the weight and the volume of the winding coils of the adopted method are reduced by half,the power consumption is much lower,and the control becomes more convenient.The driving circuit has the function of current-sampling,and can realize closed-loop control,which is more accurate than the common open-loop control scheme.In addition,the parameters of the winding oils and the magnetic core are optimally designed.The designed magnetorquer has been successfully applied to a micro satellite,which demonstrates the validity and superiority of the design scheme.

关 键 词：微磁力矩器 机电一体化 单绕组 脉冲宽度调制(PWM) 驱动控制 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]