基于多功能数据采集卡和变速PID的转台控制系统设计  

Control System Design of Turntable Based on Multifunction Data Acquisition Card and Variable Speed PID

作　　者：李敏[1] 赵剡[1] 杨辉[1] 张海峰[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《计算机测量与控制》2015年第5期1556-1559,共4页Computer Measurement &Control

摘　　要：为了提高采用转台对惯性导航系统和惯性仪表进行误差模型标定时的可靠性和精度,对角位置转台的控制系统进行了研究;首先借助NI公司PXI-8101控制器和功能强大的数据采集卡PXIe-6363对转台控制系统进行了硬件设计;随后在对转台常规PID控制方法研究的基础上提出了一种能随系统调节偏差自动改变积分项累加速度的变速PID控制方法;接着又对基于软件实现的双通道旋转变压器轴角解调算法进行了研究并提出了一种粗精组合角纠错方法;最后文章设计的转台控制系统进行了测试实验,结果表明提出的轴角解调算法具有较好的解码速度和精度,并且变速PID控制方法大大提高了转台控制系统的自学习能力和鲁棒性,显著地改善了转台控制过程的稳定性。In order to improve the reliabilhy and accuracy of the calibration process for the error model of the inertial navigation system and inertial instruments, the paper focuses on the study of control system of angle position turntable. First of all, the hardware of the turnta ble control system is designed by the data acquisition card PXIe--6363 and the controller PXI--810I from NI company. After the modeling and analyzing of the control system, a new speed PID control method which can adjust deviation automatically according to the system and a- mend integral term to accumulate velocity is proposed. Then based on the research of the angle measuring of two--channel resolver, a brand --new approach for error correction for combination of coarse and fine code is advanced also. Finally, the test experiment is carried out and the results show the good decoding speed and accuracy of the axis angle demodulation algorithm, and variable speed PII） algorithm greatly im- proves the system＇s self--learning ability and robustness, which makes a significant improvement in the stability of the control process.

关 键 词：角位置转台 力矩电机:数据采集卡 变速PID 粗精组合 LABVIEW 

分 类 号：U666.1[交通运输工程—船舶及航道工程]