• Title/Summary/Keyword: Pole placement

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LMI-Based Robust Flight Control of an Aircraft Subject to C.G Variation (선형행렬부등식 (LMI)을 이용한 비행체 무게중심 변화에 대한 강건한 제어기 설계)

  • Hong, Sung-Kyung;Kim, Byungsoo
    • Journal of Institute of Control, Robotics and Systems
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    • v.6 no.7
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    • pp.611-616
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    • 2000
  • This paper presents a design method for the robust flight controller of a hyghly maneuvering aircraft subject to C.G variation. This method is based on LMI(Linear Matrix ZInequality) pole-placement design methodology for the polytopic models. Simulation results show that the proposed LMI-based pole-placement design methodology robustly yields uniform performance with adequate Flying Qualities (FQ) over the entire CG variation range.

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Design and Implementation of IIR Multiple Notch Filter with Modified Pole-Zero Placement Algorithm

  • Yimman, Surapun;Hinjit, Watcharapong;Ussawongaraya, Weerasak;Thoopluang, Payao;Dejhan, Kobchai
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.65-68
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    • 2003
  • This paper presents a design and construction of IIR multiple notch filter by modifying the pole-zero placement with least square estimation to find the appropriate gain and pole positions for the filter within a unit circle in z-plane. The appropriated gain and pole position will render the controllable unit gain of filter magnitude. Algorithm design and system simulation are performed on MATLAB while the actual implementation is done on the TMS320C31 digital signal processing board.

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Robust pole placement method using matching condition (Matching 조건을 이용한 강인한 극점배치 방법)

  • 신준호;정정주;서병설
    • 제어로봇시스템학회:학술대회논문집
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    • 1997.10a
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    • pp.696-699
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    • 1997
  • In this paper, we presents that for discrete system with matched perturbation of uncertain parameters in the state coefficient matrix A(i.e., with perturbation of A in the range of the input matrix B), the poles of the perturbed closed loop system can be placed into the preassigned circle by the static-state feedback. We discuss the robust stabilization of the system satisfying the matching condition and application to the controller design problem.

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Continuous-time Direct Adaptive Pole Placement Control (연속시간 직접 적응 극배치 제어)

  • Kim, Jong-Hwan;Koo, Keun-Mo;Lee, Seon-Woo;Kim, Tai-Hyun
    • Proceedings of the KIEE Conference
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    • 1990.11a
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    • pp.407-412
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    • 1990
  • This note presents a novel algorithm for a continuous-time direct adaptive pole placement control for single-input single-out nonminimum phase systems. Although the resulting overall closed-loop system is locally stable, assumptions about parameter convergence or the nature of the external input are not considered.

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Direct Adaptive Pole-Placement and Stability of Discrete-time Non-minimum Phase Systems (이산시간 비 최소현상 시스템의 직지 적응 극배룰 및 안전팡에 관한 연구)

  • 최종호;최진영
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.33 no.5
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    • pp.193-199
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    • 1984
  • This paper presents a direct adaptive pole placement control scheme which is applicable to discretetime non-minimum phase systems. It is proved that by this scheme the poles can be placed at the desired locations and the overall state vector of the system is uniformly bounded if the reference input is sufficiently rich, and also proved that in case of insufficiently rich reference input the overall system can still be stabilized though the poles may not be placed exactly at the desired locations. The effectiveness of this scheme is verified by digital computer simulations.

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Pole placement control of an inverted pendulus (도립진자의 극배치 제어)

  • Jang, Ki-Dong;Huh, Uk-Youl
    • Proceedings of the KIEE Conference
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    • 1989.11a
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    • pp.355-359
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    • 1989
  • An inverted pendulum is made practically and controlled by optimal controller and pole placement controller. An IBM PC/XT plays a part of the controller. The control algorithm is implemented with C language. An integrator is added to the controller to solve the high frequency problem. Experiment is performed according to the results of simulation.

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An Adaptive Pole-zero Placement Algorithm Using Internal Model Principle (Internal Model Principle을 이용한 극-영점 배치 적응제어기에 관한 연구)

  • Lee, Jeong-Joon;Seo, Jin-Heon
    • Proceedings of the KIEE Conference
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    • 1989.11a
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    • pp.388-392
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    • 1989
  • In this paper, an adaptive pole-zero placement algorithm which has disturbance rejection properties is proposed. This method using the internal model principle is shown to reject the disturbances asymptotically. Furthermore, a method which reduces the number of estimated parameters is proposed. Some simulation results are given to demonstrate the performance of the algorithms.

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H$\infty$ Fuzzy Dynamic Output Feedback Controller Design with Pole Placement Constraints

  • Kim, Jongcheol;Sangchul Won
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.176.5-176
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    • 2001
  • This paper presents a fuzzy dynamic output feedback controller design method for Parallel Distributed Compensation (PDC)-type Takagi-Sugeno (T-S) model based fuzzy dynamic system with H$\infty$ performance and additional constraints on the closed pole placement. Design condition for these controller is obtained in terms of the linear matrix inequalities (LMIs). The proposed fuzzy controller satisfies the disturbance rejection performance and the desired transient response. The design method is verified by this method for an inverted pendulum with a cart using the proposed method.

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Robust model reference direct adaptive pole placement control

  • Kim, Jong-Hwan
    • 제어로봇시스템학회:학술대회논문집
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    • 1990.10b
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    • pp.872-877
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    • 1990
  • Robustness of a model refernece direct adaptive pole placement control for not necessarily minimum phase systems is studied subject to unmodeled dynamics and bounded disturbances. The adaptive control scheme involves two estimators for the system and the controller parameter estimation, respectively. The robustness is obtaind under some weak assumptions and by using both a normalized least-squares algorithm with dead zone and an appropriate nonlinear feedback.

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Pole placement self-tuning control of robot manipulators (극점 배치 자기 동조에 의한 로보트 매니퓰레이터 제어)

  • 이종용;양태규;이상효
    • 제어로봇시스템학회:학술대회논문집
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    • 1987.10b
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    • pp.32-35
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    • 1987
  • An adaptive control scheme has been recognized as an effective approach for a robot manipulator to track a desired trajectory in spite of the presence of nonlinearties and parameter uncertainties in robot dynamic models. In this paper, an adaptive control scheme for a robot manipulator is proposed to design the self-tuning controller which combines the pole placement with the extended linearized perturbation model. And this control scheme has two components: a feadforward control and a feedback compensation control. Based on this, the controller is demonstrated by the simulation about position control of a three-link manipulator with payload and parameter uncertainty.

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