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    Decoupling control of a twin rotor MIMO system using optimization method
    (Institute of Electrical and Electronics Engineers Inc., 2019) Dogruer T.; Tan N.
    This paper presents an optimization method on the real-time decoupling control for the TRMS system. It can be stated that TRMS has a complex structure due to its nonlinear structure, cross-couplings, two inputs and two outputs. Despite its complex structure, the TRMS is widely preferred in control applications as it allows to test the controller performances. The pitch and yaw position control in TRMS has been investigated in many studies, but its decoupling control has only been discussed in a limited number of studies. In this study, the real-time decoupling control of the TRMS was performed using fractional order PID. A Genetic Algorithm based optimization method was used for determining the parameters of the fractional order PID controller. The conventional PID was compared with the fractional order PID, and the results showed that the decoupling control of the TRMS using the fractional order PID was more successful. The method applied offers a highly effective control in real-time decoupling control of the TRMS. © 2019 Chamber of Turkish Electrical Engineers.
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    Root-locus analysis of fractional order transfer functions using LabVIEW: An interactive application
    (Institute of Electrical and Electronics Engineers Inc., 2018) Yuce A.; Tan N.; Dogruer T.
    The analysis of the open loop system in the design of the closed loop control systems is very important and useful in terms of being able to learn how the closed loop system will behave. In this paper, root locus graph of fractional order transfer function is plotted with the developed application using LabVIEW graphical programming language. A user panel has been designed using the LabVIEW graphical programming language. Interactive user panel is basic and user friendly for the computation and analysis. The root locus graph of the fractional order transfer function can interactively be plotted. Matsuda method is preferred for integer order approximation. With the interactive feature of developed application, the unit step response of closed loop control system can be plotted for a selected gain on the root locus graph panel. The application which has a rich graphical interface and interactive feature can also be used in teaching of fractional order control theory. © 2018 IEEE.