一种适用于星载太阳翼的驱动控制器设计  

Design of a Drive Controller for Satellite-Borne Solar Wing

作　　者：李丽娇 石然 严丹 马吉雨 张俊[1] LI Lijiao;SHI Ran;YAN Dan;MA Jiyu;ZHANG Jun(College of Information Science and Engineering,Central South University,Changcha 410083,China;Shanghai Aerospace Control Technology Institute,Shanghai 201109,China;Shanghai Engineering Research Center of Inertial,Shanghai 201109,China)

机构地区：[1]中南大学信息科学与工程学院,长沙410081 [2]上海航天控制技术研究所,上海201109 [3]上海惯性工程技术研究中心,上海201109

出　　处：《空间控制技术与应用》2018年第6期22-31,共10页Aerospace Control and Application

摘　　要：为了实现星载太阳翼稳定、可靠、高精度的调速控制,本文设计一种基于FPGA的驱动控制器,通过RS-422异步通信串口接收指令,自主进行速度规划,并结合采集的零位信号进行位置闭环控制,以细分驱动的方式对两路太阳翼进行同步或独立控制.该驱动控制器使用VHDL语言设计,在Modelsim软件中进行仿真,并使用航天级FPGA通过LMD18200H桥驱动芯片连接至步进电机,对星载太阳翼进行调速、归零和停止控制.仿真和实验结果表明,该设计可以准确、稳定的控制步进电机,在64细分、100∶1减速比的条件下,低速段的速度相对误差在0. 006(°)/s之内,高速段的速度误差在±0. 13%之间.In order to realize a stable,reliable and high-precision speed control of the satellite-borne solar wing,a FPGA-based drive controller is designed.The drive controller receives commands through the RS-422 asynchronous communication serial port,and performs speed planning autonomously.The collected zero-position signals are combined with a closed-loop position control,and the solar wings are controlled synchronously or independently in a subdivision driving method.The drive controller is designed using the hardware description language VHDL,simulated in Modelsim software,and connected to the stepper motor through the LMD18200H bridge driver chip using aerospace-grade FPGA,which can control the satellite-borne solar wing regulate speed,go zero or stop.The simulation and experiment results show that the design can accurately and stably control the stepping motor.Under the condition of 64 subdivision and 100∶1 reduction ratio,the relative speed error of the low speed section is within 0.006(°)/s,and the speed error of the high speed is between±0.13%.

关 键 词：太阳翼 驱动控制 FPGA 步进电机 

分 类 号：V448.223[航空宇航科学与技术—飞行器设计]