Set point weighted modified Smith predictor with PID filter controllers for non-minimum-phase (NMP) integrating processes

Uma, S.; Chidambaram, M.; Rao, A. Seshagiri
May 2010
Chemical Engineering Research & Design: Transactions of the Inst;May/Jun2010, Vol. 88 Issue 5/6, p592
Academic Journal
A simple modified Smith predictor design for the control of non-minimum-phase integrating processes with/without a zero is proposed. The method consists of two controllers, one for set point tracking and the other for disturbance rejection. The controllers are designed based on direct synthesis approach. The set point tracking controller is designed as a proportional-integral-derivative (PID) with lag filter and the disturbance rejection controller is designed as a proportional-derivative (PD) with lead lag structure. Typical types of integrating processes with/without zero are considered and the controllers are designed in a unified approach for all the types of integrating processes. Extensive simulation studies have been carried out on various integrating processes with/without zero. The present method gives good disturbance rejection response and significant improvement when compared to the recently reported methods in the literature.


Related Articles

  • Application of Adaptive Fuzzy PID Control in PLC Variable Frequency Speed Adjusting Synchronous Test. SUN Xiao-ming; MA Qing; CAO Hu; WU Jie; BAI Rui-qing // Research & Exploration in Laboratory;Jun2014, Vol. 33 Issue 6, p16 

    For the problem of synchronous control of asynchronous motor, the master-slave control structure was adopted based on analysis of tlie system of PLC variable frequency speed adjusting. PID parameters were real-time adjusted based on fuzzy rules and online self correction, the adaptive fuzzy PID...

  • 2014 top Control Engineering articles. Hoske, Mark T. // Control Engineering;Jan2015, Vol. 62 Issue 1, p8 

    The article presents a list of top articles published in the journal in year 2014 including "Future of the PLC" in the August 26 issue, "Goodbye Windows Xp; Hello IsXP?" in the March 31 issue, and "Tuning PID Control Loops for Fast Response" in the July 1 issue.

  • Design and application of an information fusion control system. Yue, Shihong; He, Boyang; Wang, Jeen-Shing; Zuo, Zhiqiang // Transactions of the Institute of Measurement & Control;Jul2013, Vol. 35 Issue 5, p630 

    This paper presents an information fusion control system designed based on a reformulation of traditional PID control methods. The purpose of the study was to integrate multiple information resources in order to achieve a better control performance in terms of system dynamics and statistic...

  • Performance Comparison between Sliding Mode Control (SMC) and PD-PID Controllers for a Nonlinear Inverted Pendulum System. Nasir, A. N. K.; Ismail, R. M. T. Raja; Ahmad, M. A. // World Academy of Science, Engineering & Technology;Nov2010, Issue 47, p400 

    No abstract available.

  • Study on Fuzzy PID Algorithm for a New Active Front Steering System. Dan Xiang; Jian-zhong Yuan; Wei Xu // Journal of Control Engineering & Technology;Jan2012, Vol. 2 Issue 1, p24 

    Based on the structure and principle of a new active front steering system (AFS), the control strategy and algorithm of active front steering system are analyzed and the dynamic model of AFS is established. In order to improve the AFS steering characteristic, the PID controller and Fuzzy-PID...

  • Dual hydraulic cylinders synchronized control strategy. Liu li-ping // Advanced Materials Research;2014, Issue 898, p546 

    Through the double cylinder synchronous lifting system in-depth study presents a masterslave control method and the single neuron PID control strategy for controlling synchronization accuracy. Simulation results show that this method can achieve higher precision synchronization control.

  • Comparative Study of Controllers for a Variable Area MIMO Interacting NonLinear System. Chandrasekar, Priya; Ponnusamy, Lakshmi // International Journal of Engineering & Technology (0975-4024);Feb/Mar2014, Vol. 6 Issue 1, p227 

    Most of the industrial processes are basically Multi Input Multi Output (MIMO) system. In this paper a new combination of Spherical Conical Interacting Tank System (SCITS) which is a variable area nonlinear MIMO system is considered for study and various control algorithms based on Ziegler...

  • Design a PID Controller for a Constant Speed of Combustion Engine. Mohd. Khair, H.; Aishwarya, K.; Ribhan Zafira, A. R.; Siti Anom, A. // Australian Journal of Basic & Applied Sciences;2011, Vol. 5 Issue 12, p1586 

    The engine speed can be controlled by controlling the air-fuel intake available for combustion in the cylinder. The air-fuel intake is determined by the throttle opening. This paper presents the design of a PID controller for a constant speed engine. The PID controller regulates engine speed by...

  • Exploiting Fractional Order PID Controller Methods in Improving the Performance of Integer Order PID Controllers: A GA Based Approach. Mukherjee, Bijoy K.; Metia, Santanu // AIP Conference Proceedings;10/10/2009, Vol. 1177 Issue 1, p143 

    The paper is divided into three parts. The first part gives a brief introduction to the overall paper, to fractional order PID (PIλDμ) controllers and to Genetic Algorithm (GA). In the second part, first it has been studied how the performance of an integer order PID controller...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics