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Indexed by:会议论文

Date of Publication:2014-01-01

Included Journals:CPCI-S

Page Number:403-407

Abstract:The study on PID controller has been a widely concerned topic in the field of industrial process for a long period, but the determination of the controller parameters is still a difficult problem. This paper proposes a new structure of PID controller tuning for n-th order lag (PTn) industrial processes based on damping optimum criterion. This structure is characterized by choosing the differential forward PID controller and adding a pre-filter in front of the whole system structure, which improves the system step response performance: short transient time, small overshoots and oscillations. The effectiveness of the proposed structure is shown both in series of simulations and comparative experiments with Ziegler-Nichols method.