Simulating Adaptive Control over Wire Tension of Multi-wire Saw
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摘要: 针对力矩电机张力控制方式的特点,分析和建立了多线切割机张力控制系统的数学模型,并在此基础上,设计了线张力自适应控制算法。该算法通过张力控制电机反馈的转速和转角大小,利用NLMS算法对收/放线电机的转速进行自适应动态修正,提高对主轴电机的线速度跟随精度,最终达到精确控制张力的目的。Matlab仿真结果表明:该控制算法对张力的控制精度高、响应速度快,可以满足多线切割加工对张力控制的要求。Abstract: We establish the mathematical model of a multi-wire tension control system and design an adaptive control algorithm for the control of the wire tension.The adaptive control algorithm uses the NLMS(normalized least mean squares) algorithm to perform the adaptive and dynamic correction of the rotational speed of the multi-wire saw with the rotational speed and angle fed back by the tension control motor so as to control the wire tension more accurately.The Matlab simulation results show that our adaptive control algorithm can accurately control the wire tension of the multi-wire saw.
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Key words:
- multi- wire saw /
- wire tension /
- adaptive control algorithm
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