CAJ | 학술논문

针对光电探测系统中常用的指向镜伺服系统,对其控制方法进行设计和仿真,构建了永磁同步电机的动力学模型.确立了空间矢量脉宽调制的算法,并给出仿真模型和结果.基于此系统进行了电流环、速度环、位置环的设计,采用位置前馈和重复控制器,最终得到一种易于实现、定位精度高的控制器.理论分析和仿真实验证明,该控制器能够较好地改善伺服系统的动态特性,具有调节时间短、无超调和动态响应准确快速等优点,并能有效提高系统位置控制精度,所得结论对此类伺服系统具有一定的指导意义.
침대광전탐측계통중상용적지향경사복계통,대기공제방법진행설계화방진,구건료영자동보전궤적동역학모형.학립료공간시량맥관조제적산법,병급출방진모형화결과.기우차계통진행료전류배、속도배、위치배적설계,채용위치전궤화중복공제기,최종득도일충역우실현、정위정도고적공제기.이론분석화방진실험증명,해공제기능구교호지개선사복계통적동태특성,구유조절시간단、무초조화동태향응준학쾌속등우점,병능유효제고계통위치공제정도,소득결론대차류사복계통구유일정적지도의의.
This paper designs and simulates a pointing mirror control system driven by permanent magnet synchronous motor ( PMSM ). The mathematical model of PMSM and space vector pulse width modulation are established and the corresponding simulation results are presented. Based on the model, a high accuracy controller which consists of current loop, velocity loop, and position loop is designed and simulated. Due to the inherent system uncertainties, various disturbances can affect the system accuracy. This paper proposes a position control scheme employing a feed-forward controller and a repetitive controller. Theoretical analysis and simulation experiments show that the designed pointing mirror control system has good dynamic characteristic with a short setting time, a fast dynamic response, and little position error.