| 基于PMAC的交流伺服系统设计与研究 |
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| 引用本文： | 杨柯,赵晓蓓,张绪斌. 基于PMAC的交流伺服系统设计与研究[J]. 机电一体化, 2009, 0(1): 50-53 |
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| 作者姓名： | 杨柯 赵晓蓓 张绪斌 |
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| 作者单位： | 西北工业大学航空学院,西安,710072;西北工业大学航空学院,西安,710072;西北工业大学航空学院,西安,710072 |
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| 摘 要： | 二轴转台是模拟飞行器空中飞行姿态的交流伺服系统。文章首先介绍了二轴转台的硬件组成及各部分的功能，根据需求设计出转台控制软件；详细介绍了位置信息的采集及解码过程；采用了快速傅立叶变换（FFT）算法对离散信号进行频谱分析，找到主频点的幅值和相角，从而计算出指令信号和反馈信号的幅差和相差；通过调整控制参数得到最优的控制结果；最后建立了对应部分频率下的最优控制参数表。
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| 关 键 词： | 二轴转台 交流伺服电机 FFT 可编程多轴运动控制器 光电编码器 |
Design and Research on the AC Servo System Based on PMAC |
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| Abstract: | Two-Axis Turntable is a AC servo system to simulate motion of the aircraft. This paper describes the structure of Two-Axis Turntable and the function of each part.The control software of turntable is designed base on requirement. The acquisition of position information and decoding process are described in detail. The Fast Fourier Transform algorithm is used to analyse the harmonic of the discrete signal and find the amplitude and phase angle of main frequency point. The amplitude and phases difference between instruction and feedback signal can be calculated.The optimal control result is obtained by adjusting control parameters. Finally a table of optimal control parameters for some frequencies is established. |
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| Keywords: | FFT |
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