CAJ | 학술논문

为了改善傅里叶变换红外光谱仪中动镜运动控制系统的动态性能和静态性能，设计了基于扰动观测器的非线性PID控制器。首先对该动镜驱动系统进行数学建模，分析系统中的非线性因素。之后给出了设计该控制器的理论依据。最后进行了数值仿真分析和实验验证。实验结果表明：动镜以133 mm/s运动时，采用基于扰动观测器的非线性PID控制器控制时，系统响应超调量为0，上升时间为3 ms，稳态均方差为0.0392，性能明显优于传统PID控制器。结果证明了该控制器的可行性和实用性，满足了干涉仪的动镜匀速性要求。
위료개선부리협변환홍외광보의중동경운동공제계통적동태성능화정태성능，설계료기우우동관측기적비선성PID공제기。수선대해동경구동계통진행수학건모，분석계통중적비선성인소。지후급출료설계해공제기적이론의거。최후진행료수치방진분석화실험험증。실험결과표명：동경이133 mm/s운동시，채용기우우동관측기적비선성PID공제기공제시，계통향응초조량위0，상승시간위3 ms，은태균방차위0.0392，성능명현우우전통PID공제기。결과증명료해공제기적가행성화실용성，만족료간섭의적동경균속성요구。
In order to improve static and dynamic performance of moving mirror motion system in Fourier transform infrared spectrometer, nonlinear PID controller based on disturbance observer was designed. Firstly, mathematical model of moving mirror driven system was established, nonlinear factors in the system were analyzed. And then the theoretical basis designing this controller was given. At last, numeral simulation and physical experiment were carried on. The experimental results show that, when moving mirror is moving at 133 mm/s, the maximum overshoot of system is 0, rising time was 3 ms, steady-state variance is 0.039 2 using NPID with DOB, which is obviously better than traditional PID controller. Conclusion shows that NPID with DOB controller is feasible and usable and it meets the requirement uniform motion of moving mirror.