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本文对文[1]提出的非线性PID控制系统进行了深入的分析,探讨了系统鲁棒性的原因,并在理论分析的基础上提出了一种新的非线性微分器,仿真结果表明,由改进微分器构成的非线性PID控制系统比采用文[1]的办法具有更强的鲁棒性和适应性,而且对反馈回路的噪声有更强的抑制能力。
In this paper, the nonlinear PID control system proposed in [1] is deeply analyzed, the reason of the system robustness is discussed, and a new nonlinear differentiator is proposed based on the theoretical analysis. The simulation results show that, The nonlinear PID control system composed of improved differentiators has stronger robustness and adaptability than the method of [1], and it has a stronger ability to restrain the feedback loop noise.