| 基于新型CMAC控制方法的电动加载系统 |
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| 引用本文： | 王帮亭,黄耀达. 基于新型CMAC控制方法的电动加载系统[J]. 电子科技, 2015, 28(9): 136 |
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| 作者姓名： | 王帮亭 黄耀达 |
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| 作者单位： | (上海飞机设计研究院 电气设计研究部,上海 201210) |
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| 摘 要： | 在电动加载系统中,多余力矩强扰动和其他非线性因素直接影响力矩跟踪精度,传统的控制方法难以得到满意的控制效果。文中分析了传统CMAC算法不稳定的原因,提出了一种新型CMAC控制策略,并对其结构及算法进行了研究。在控制结构上以系统的指令输入和实际输出作为CMAC的激励信号,采用误差作为训练信号,并根据激励信号的特点,提出了非均匀量化的思想。动态仿真结果表明,该方法有效抑制了加载系统的多余力矩及摩擦等非线性因素干扰,提高了电动加载系统的控制精度,且增强了系统的稳定性。
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| 关 键 词： | 电动加载 CMAC控制策略 稳定性 |
Electric Loading System Based on a Novel CMAC Control Strategy |
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| WANG Bangting,HUANG Yaoda. Electric Loading System Based on a Novel CMAC Control Strategy[J]. Electronic Science and Technology, 2015, 28(9): 136 |
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| Authors: | WANG Bangting HUANG Yaoda |
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| Affiliation: | (Department of Electrical and Electronic System,SADRI,Shanghai 201210,China) |
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| Abstract: | The disturbance of surplus torque and the nonlinearity deteriorate the precision of torque tracking in the electric loading system.This undesired effect cannot be removed satisfactorily by the conventional control.To deal with this problem,after analyzing the origin of instability of the traditional CMAC,we propose a novel CMAC composite control strategy based on optional weight and investigate its structure and algorithm.This control adopts the desired output and the actual output of the electric loading system as the incentive signals of CMAC,and treats the error between the desired output and the actual output as the training signal for the CMAC structure.A non-uniform quantization scheme is then proposed according to the characteristics of the incentive signals.In the conventional CMAC,errors are equally distributed into memory cells;while the novel CMAC allocates errors according to the Gaussian weighting coefficients.Simulation results show that the proposed hybrid controller effectively suppresses the disturbance of surplus torque and the nonlinearity such as friction,improves the control precision of the electric loading system and enhances the control stability of the system. |
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| Keywords: | eric load CMAC control strategy stability, |
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