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Proceedings ArticleDOI: 10.1109/ICAEE.2014.6838496

Improved parameter tuning methods for second order plus time delay processes

19 Jun 2014-pp 1-6
Abstract: Tuning of proportional integral and derivative (PID) Controllers for stable and unstable second order plus time delay systems (SOPTD), based on Model Driven Two Degree of Freedom PID (MDTDOF PID) and Internal model controller (IMC) are proposed in this paper. Due to inherent disadvantages of conventional control techniques, model based control techniques are employed. MDTDOF PID is developed to control and maintain a constant temperature environment in Thermo Electric Cooler (TEC) and IMC PID controller is designed to control unstable Jacketed Continuous Stirred Tank Reactor (CSTR). The performance of the proposed controllers is compared with the conventional Ziegler-Nichols (Z-N) method. The paper also presents the simulation results for both stable and unstable systems with transfer function models to show the effectiveness and advantages of proposed methods.

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Topics: PID controller (64%), Control theory (57%), Process control (51%)
References
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Open accessProceedings Article
20 Jul 2004-
Abstract: PID control systems are widely used as a basic control technology for industrial control systems today, due to its well-known simple PID control structure. However, the tuning of the PID control systems is not always easy, because of its simple control structure for wide class of process characteristics. What is a widely applicable and simple process controller with an easy tuning and good control performance? This is a motivation of the paper. Prof. Hidenori Kimura of Univ. of Tokyo proposed "morel driven control (MDC) concept" at CDC2000 Sydney. He defined a model driven control as a control system architecture, which uses a model of the plant as a principal component of controller. PIDrd, PPI (predictive PI), IMC (internal model control) and DMC (dynamic matrix control) belong to a class of MDC. Features of MDC are simple structure, easy tuning approach and proven stability and robustness. Based on the MDC concept, aiming for wide applicability for even unstable processes, we developed a model driven PID control system, named MD PID control system, combining with a PD local feedback, an IMC and a set-point filter. That was one degree of freedom type. In this paper, we propose a new model driven two degrees of freedom PID control scheme, named MD TDOF PID control, in order to obtain better disturbance regulating property by extending conventional MD PID control system. Through some features and some practical field experiments, the MD TDOF PID control system shows good control performances with easy tuning.

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Topics: PID controller (65%), Model predictive control (62%), Control system (60%) ...read more

30 Citations


Proceedings ArticleDOI: 10.1109/CCA.2002.1040248
T. Shigemasa1, M. Yukitomo1, R. KuwataInstitutions (1)
10 Dec 2002-
Abstract: PID control systems are still used as a basic control technology in today's industries. However, there are issues on control performances for some controlled processes, such as long dead-time processes and unstable processes. In order to improve the control performances of PID Control systems, we proposed a new model-driven PID control system at the first ISA/JEMIMA/SICE Joint Technical Conference (2001) in Tokyo, which is combined with the following control blocks; PD feedback block, internal-model control (IMC) block and set-point filter block, based on the model driven control concept proposed by Kimura at the CDC2000 in Sydney. In this paper, the model-Driven PID control system and the design method are described and practical effectiveness, including two degrees of freedom properties, are shown through several case studies.

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Topics: PID controller (63%), Control system (60%), Model predictive control (60%) ...read more

24 Citations


Open accessProceedings ArticleDOI: 10.11499/SICEP.2003.0_9_4
Y. Baba1, Takashi Shigemasa1, M. Yukitomo1, F. Kojima1  +2 moreInstitutions (1)
01 Jan 2003-
Abstract: PID control is widely used as a basic control technology in industries today, but tuning of PID control systems is not always easy. Based on model-driven control concept, we developed a model-driven PID control system, named MD PID controller, combining with PD local feedback, IMC and set point filter. This paper provides a brief introduction of new model driven two-degrees of freedom PID control system, named MD TDOF PID controller, and shows some case studies results. We have confirmed that MD TDOF PID can show better control results compared with conventional PID control.

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Topics: PID controller (68%), Control theory (58%)

22 Citations


Proceedings ArticleDOI: 10.1109/SICE.2002.1195842
M. Yukitomo1, Y. Baba1, Takashi Shigemasa1, M. Ogawa  +2 moreInstitutions (1)
05 Aug 2002-
Abstract: PID control systems are used as a basic control technology in contemporary industry However, there are issues regarding control performances for some controlled processes, such as long dead-time processes and unstable processes In order to improve the control performances of PID control systems, we proposed a new model driven PID control system, which is combined with the following control scheme; PD feedback, internal model control, set point filter and PV filter In this paper, the model driven PID control system, its design method and application results for chemical processes are described

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Topics: PID controller (65%), Model predictive control (63%), Control system (62%) ...read more

7 Citations


Journal ArticleDOI: 10.1016/S1005-8885(09)60586-0
Jiang-dong Shan1, Ge Wu1, Xiao-jian Tian1Institutions (1)
Abstract: This paper designes a diminutive constant temperature control system based on thermoelectric cooler (TEC). Considering that the system is a large time-delay control system, the paper proposes a new method to determine the transfer function of the controlled system which gets the transfer function by doing nonlinear fitting of the step response of the controlled system. The characteristics of system model which is established by the method are basically same as the actual constant temperature control system. This method provides a new way of thinking to the design of large time-delay control system.

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Topics: Temperature control (58%), Step response (57%), TEC (56%) ...read more

6 Citations