现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新...现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新型"高效"滤波方法上的一些进展,将一种新型正弦跟踪滤波方法 (New sinusoid tracking filter, NSTF)运用于SO-IFC控制回路的噪声干扰滤波.针对被控对象的准确数学模型难以获取的问题,将一种根据过程增益(Process gain, PG)和过程总滞后(Process all lag, PAL)的工程参数整定方法 (Engineering parameter tuning method, EPTM)运用于SO-IFC参数的整定,降低了SO-IFC参数整定的难度.将SO-IFC运用于大滞后过程的控制,具有良好的控制性能包括良好的扰动抑制性能.数学分析、仿真实验和实际应用的结果验证了文中所提出观点和方法的正确性和有效性.展开更多
To overcome the deficiencies addressed in the conventional PID control and improve the dynamic performance and robustness of the system, a simple design and parameters tuning approach of internal model control-PID （I...To overcome the deficiencies addressed in the conventional PID control and improve the dynamic performance and robustness of the system, a simple design and parameters tuning approach of internal model control-PID （IMC-PID） controller was proposed for the first order plus time-delay （FOPTD） process and the second order plus time-delay （SOPTD） process. By approximating the time-delay term of the process model with the first-order Taylor series, the expressions for IMC-PID controller parameters were derived, and they had only one adjustable parameter 2 which was directly related to the dynamic performance and robustness of the system. Moreover, an analytical approach of selecting 2 was given based on the maximum sensitivity Ms. Then, the robust tuning of the system could be achieved according to the value of Ms. In addition, the proposed method could be extended to the integrator plus time-delay （IPTD） process and the first order delay integrating （FODI） process. Simulation studies were carried out on various processes with time-delay, and the results show that the proposed method could provide a better dynamic performance of both the set-point tracking and disturbance rejection and robustness against parameters perturbation.展开更多
文摘现代控制论与控制实际之间存在一些"鸿沟",根据PID (Proportional-integral-derivative)控制器具有良好抗扰性的事实,提出了一种基于PID的二阶内反馈控制器(Second order of internal feedback controller, SO-IFC).基于在新型"高效"滤波方法上的一些进展,将一种新型正弦跟踪滤波方法 (New sinusoid tracking filter, NSTF)运用于SO-IFC控制回路的噪声干扰滤波.针对被控对象的准确数学模型难以获取的问题,将一种根据过程增益(Process gain, PG)和过程总滞后(Process all lag, PAL)的工程参数整定方法 (Engineering parameter tuning method, EPTM)运用于SO-IFC参数的整定,降低了SO-IFC参数整定的难度.将SO-IFC运用于大滞后过程的控制,具有良好的控制性能包括良好的扰动抑制性能.数学分析、仿真实验和实际应用的结果验证了文中所提出观点和方法的正确性和有效性.
基金Project(2007011049) supported by the Natural Science Foundation of Shanxi Province,China
文摘To overcome the deficiencies addressed in the conventional PID control and improve the dynamic performance and robustness of the system, a simple design and parameters tuning approach of internal model control-PID （IMC-PID） controller was proposed for the first order plus time-delay （FOPTD） process and the second order plus time-delay （SOPTD） process. By approximating the time-delay term of the process model with the first-order Taylor series, the expressions for IMC-PID controller parameters were derived, and they had only one adjustable parameter 2 which was directly related to the dynamic performance and robustness of the system. Moreover, an analytical approach of selecting 2 was given based on the maximum sensitivity Ms. Then, the robust tuning of the system could be achieved according to the value of Ms. In addition, the proposed method could be extended to the integrator plus time-delay （IPTD） process and the first order delay integrating （FODI） process. Simulation studies were carried out on various processes with time-delay, and the results show that the proposed method could provide a better dynamic performance of both the set-point tracking and disturbance rejection and robustness against parameters perturbation.
