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Parameter Identification and Compensation Control of Friction Model for PMSLS Based on Genetic Algorithms

机译:基于遗传算法的PMSLS摩擦模型参数辨识与补偿控制

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In connection with high precision micro-feed and super low speed permanent magnet linear synchronous servo system PMSLS , this essay adopts vector control to make up a three closed-loop system. The speed-loop and current-loop adopt IP controller, position-loop adopts second order sliding mode variable structure control to ensure fast tracking performance of system response, and then achieve high-precision micro-feed. In order to compensate friction disturbance and increase robustness, this essay adopts based on Genetic Algorithms friction model’s parameter identification on line and feed-forward compensation. According to Simulation result, the system has high robustness and steady state precision was improved.
机译:结合高精度微进给和超低速永磁直线同步伺服系统PMSLS,本文采用矢量控制组成三闭环系统。速度环和电流环采用IP控制器,位置环采用二阶滑模变结构控制,以确保系统响应的快速跟踪性能,从而实现高精度的微进给。为了补偿摩擦干扰并提高鲁棒性,本文采用基于遗传算法的摩擦模型在线和前馈补偿进行参数辨识。根据仿真结果,该系统具有较高的鲁棒性,并提高了稳态精度。

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