| 空间光通信链路模拟平台控制系统 |
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| 引用本文： | 廉明,富宏亚.空间光通信链路模拟平台控制系统[J].红外与激光工程,2009,38(1). |
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| 作者姓名： | 廉明 富宏亚 |
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| 作者单位： | 哈尔滨工业大学,机电工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为实现卫星姿态仿真,建立了基于"板卡-PC"的两级高精度链路模拟平台控制系统.该系统采用绝对式光电码盘作为角位置反馈元件,属于电流、速度、位置多闭环系统.控制部分使用复合控制加数字滤波技术,引入饱和限幅及死区补偿模块;根据轨迹特点,设计变参数调节控制器以提高动态性能.实验结果表明,定位精度达到±3";最低平稳角速度0.000 5(°)/s,误差±0.000 1°;随0.2 Hz幅值1°的等效正弦波变化,动态误差在3σ条件下小于±9.17".该控制系统满足高精度模拟平台技术要求.
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| 关 键 词： | 模拟平台 变参数控制器 数字滤波 摩擦补偿 |
Control system of link simulator for space optical communication |
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| LIAN Ming,FU Hong-ya.Control system of link simulator for space optical communication[J].Infrared and Laser Engineering,2009,38(1). |
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| Authors: | LIAN Ming FU Hong-ya |
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| Affiliation: | School of Mechatronics Engineering;Harbin Institute of Technology;Harbin 150001;China |
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| Abstract: | In order to realize satellite attitude simulation, a high accurate link simulator control system was designed, which was based on "board-PC" two-stage system. The system used absolute encoder as position feedback element, including current loop, velocity loop and position loop feedback system. To improve precision of control system, compound controller was used,which consists of velocity and acceleration feed-forward, PID module, digital filter, amplitude limited and dead band compensation technology. Accor... |
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| Keywords: | Simulator VPC Digital filter Friction compensating |
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