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煤层气发动机稳态空燃比前馈控制脉谱生成

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Keywords: 煤层气发动机,空燃比,前馈控制,静态模型,脉谱

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Abstract:

基于煤层气发动机进气系统的物理特性,采用平均值、多项式和模糊神经网络建模方法,建立了用于稳态空燃比前馈控制的递阶模型,并通过该模型生成了三维初始控制脉谱图。借助于辨识的过量空气系数自适应神经网络模糊推理系统(ANFIS)模型,进行了静态空燃比前馈控制仿真。利用前馈控制模型生成的数据,检验了实际控制效果。结果表明,前馈控制模型具有良好的预测能力,模型最大和平均预测误差分别小于

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