摘要
卫星质量决定发射成本,卫星质量越大发射成本越高,同时结合低制造成本需求,小型化遥感产品的研制变得越来越迫切。作为遥感相机的组成部分,制冷控制器也同样面临着减重降本的小型化压力。文章从制冷控制器驱动电路着手,设计两线制正弦脉宽调制(Sinusoidal Pulse Width Modulation,SPWM)驱动优化方案,硬件上相较于传统的四线制驱动,采用SPWM信号复用方法,将四套信号处理电路缩减至两套,节约了一半的电路设计,起到了减重降本作用;软件上在四线制SPWM波形输出的基础上做设计优化,输出同等驱动分辨率的两线制SPWM信号,即满足硬件电路设计需求,又保证了制冷控制器的控温精度。该方案通过原理分析、仿真验证、实物测试、效果对比,结果表明该方案在保证控温性能不变的同时,优化了设计,是一种可行的小型化设计方法。
The weight of the satellite determines the launch cost.The heavier the satellite,the higher the launch cost.At the same time,combined with its own low manufacturing cost requirements,the development of miniaturization remote sensing products has become more and more urgent.As a component of remote sensing camera,refrigeration controllers are also facing the pressure of miniaturization to reduce weight and cost.Starting from the driving circuit of refrigeration controller,this paper designs a two-wire Sinusoidal Pulse Width Modulation(SPWM)drive optimization scheme.In hardware,compared with the traditional four-wire drive,the SPWM signal multiplexing method is adopted to reduce the four sets of signal processing circuits to two sets.Half of the circuit design,played the role of reducing weight and cost.On the basis of the four-wire SPWM waveform output,the software is designed and optimized to output the two-wire SPWM signal with the same driving resolution,which not only meets the requirements of the hardware circuit design,but also ensures the temperature control accuracy of the refrigeration controller.Through principle analysis,simulation verification,real test and effect comparison,the results show that the scheme is a feasible miniaturization design method,which can optimize the design and reduce the weight and cost while keeping the temperature control performance unchanged.
作者
汪瑜
郝中洋
刘成
WANG Yu;HAO Zhongyang;LIU Cheng(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China)
出处
《航天返回与遥感》
CSCD
北大核心
2023年第3期41-50,共10页
Spacecraft Recovery & Remote Sensing
基金
中国空间技术研究院杰出青年人才基金(B2YG1446)。
关键词
制冷控制器
小型化
低成本
驱动电路
软硬件优化
遥感相机
refrigeration controller
miniaturization
low cost
drive circuit
hardware and software optimization
remote sensing camera
