CAJ | 학술논문

数控位置伺服系统的前馈控制具有动态响应快、跟踪精度高、实用性高等特点，在位置跟踪数控伺服系统中应用广泛，但对数控伺服系统的位置阶跃响应作用不明显，且超调量大。为此，提出在位置前馈控制的基础上，引入位置环微分负反馈的新型控制策略。在伺服系统位置环增加微分负反馈后，对前馈控制函数进行修正，使微分负反馈控制既能保证系统实现无超调快速响应，又不影响位置前馈跟踪性能。仿真和实验结果验证了该方法的可行性和有效性，表明该新型控制方法适用范围广，响应速度快，超调量小，具有很高的工程实用价值。
수공위치사복계통적전궤공제구유동태향응쾌、근종정도고、실용성고등특점，재위치근종수공사복계통중응용엄범，단대수공사복계통적위치계약향응작용불명현，차초조량대。위차，제출재위치전궤공제적기출상，인입위치배미분부반궤적신형공제책략。재사복계통위치배증가미분부반궤후，대전궤공제함수진행수정，사미분부반궤공제기능보증계통실현무초조쾌속향응，우불영향위치전궤근종성능。방진화실험결과험증료해방법적가행성화유효성，표명해신형공제방법괄용범위엄，향응속도쾌，초조량소，구유흔고적공정실용개치。
A feedforward control of CNC position servo system has many advantages as fast dy-namic response,high tracking accuracy,practicality and so on,and it is widely used in CNC position servo system.However,it has large overshoot and it contributes little in the step position servo sys-tem.Therefore,a new control method was proposed that the differential negative feedback control was introduced on the basis of the servo system feedforward control herein.With adding the differen-tial negative feedback,the feedforward control function was deduced again.So that the differential negative feedback could guarantee the little overshoot and rapid response,and had no bad effection in position tracking performance.The simulation and experimental results verify the feasibility and ef-fectiveness of the analysis and the design.The new control method is applicable to a wide range with its merits of fast response and great practical value.