• Title/Summary/Keyword: Hybrid fuzzy-PI controller

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High performance Control of Induction Motor using Hybrid-PI Controller (Hybrid-PI 제어기를 이용한 유도전동기의 고성능 제어)

  • Choii, Jung-Sik;Ko, Jae-Sub;Kim, Kil-Bong;Chung, Dong-Hwa
    • Proceedings of the KIEE Conference
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    • 2006.10c
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    • pp.260-262
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    • 2006
  • This paper presents Hybrid-PI controller of induction motor drive using fuzzy control. In general, PI controller in computer numerically controlled machine process fixed gain. They may perform well under some operating conditions, but not all. To increase the robustness, fixed gain PI controller, Hybrid-PI controller proposes a new method based self tuning PI controller. Hybrid-PI controller is developed to minimize overshoot and settling time following sudden parameter changes such as speed, load torque, inertia, rotor resistance and self inductance. The results on a speed controller of induction motor are presented to show the effectiveness of the proposed gain tuner. And this controller is better than the fixed gains one in terms of robustness, even under great variations of operating conditions and load disturbance.

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Hybrid PI Controller of IPMSM Drive using FAM Controller (FAM 제어기를 이용한 IPMSM 드라이브의 하이브리드 PI 제어기)

  • Ko, Jae-Sub;Choi, Jung-Sik;Chung, Dong-Hwa
    • Journal of Institute of Control, Robotics and Systems
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    • v.13 no.3
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    • pp.192-197
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    • 2007
  • This paper presents Hybrid PI controller of IPMSM drive using fuzzy adaptive mechanism(FAM) control. In general, PI controller in computer numerically controlled machine process fixed gain. They may perform well under some operating conditions, but not all. To increase the robustness, fixed gain PI controller, Hybrid PI controller proposes a new method based self tuning PI controller. Hybrid PI controller is developed to minimize overshoot and settling time following sudden parameter changes such as speed, load torque, inertia, rotor resistance and self inductance. The results on a speed controller of IPMSM are presented to show the effectiveness of the proposed gain tuner. And this controller is better than the fixed gains one in terms of robustness, even under great variations of operating conditions and load disturbance.

Power Quality Control of Wind/Diesel Hybrid Power Systems Using Fuzzy PI Controller (퍼지 PI 제어기를 이용한 풍력/디젤 하이브리드 발전시스템의 품질제어)

  • Yang, Su-Hyung;Ko, Jung-Min;Boo, Chang-Jin;Kang, Min-Jae;Kim, Jeong-Uk;Kim, Ho-Chan
    • Journal of the Korean Solar Energy Society
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    • v.32 no.5
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    • pp.1-10
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    • 2012
  • This paper proposes a modeling and controller design approach for a wind-diesel hybrid system including dump load. Wind turbine depends on nature such as wind speed. It causes power fluctuations of wind turbine. Excessive power fluctuation at stand-alone power grid is even worse than large-scale power grid. The proposed control scheme for power quality is fuzzy PI controller. This controller has advantages of PI and fuzzy controller. The proposed model is carried out by using Matlab/Simulink simulation program. In the simulation study, the proposed controller is compared with a conventional PI controller. Simulation results show that the proposed controller is more effective against disturbances caused by wind speed and load variation than the PI controller, and thus it contributes to a better quality wind-diesel hybrid power system.

A hybrid algorithm of fuzzy logic and conventional PI controller for the temperature control of glass melting furnace (유리 용해로 온도 제어를 위한 퍼지 로직과 PI 제어기의 복합형 제어 알고리듬)

  • Moon, Un-Chul;Kim, Heung-Shik;Park, Young-Moon
    • Journal of Institute of Control, Robotics and Systems
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    • v.4 no.2
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    • pp.215-219
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    • 1998
  • This paper presents a practical application of fuzzy logic control to temperature control of glass melting furnace. Due to the characteristics of glass melting furnace, a hybrid algorithm of conventional PI controller and fuzzy logic controller is proposed and discussed. Practical implementation results of the production furnace showed the effectiveness of the proposed control algorithm.

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Design of a Hybrid fuzzy PI Speed Controller For Improving The Load Characteristic of a BLDC Motor (BLDC 모터의 부하특성기선을 위한 하이브리드형 퍼지 PI 속도 제어기)

  • Oh, Joon-Tae;Kim, Yong;Baek, Soo-Hyun;Cho, Gyu-Man;Lee, Gyu-Hoon
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.228-231
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    • 2002
  • This paper describes the design and experimental verification of a hybrid fuzzy control system for a BLDC motor drive. The principle of the proposed control system is to use a PI controller which performs satisfactorily in most cases, while a fuzzy controller, which is ready to take over the PI controller. is used when severe perturbations occur. Thus. the PI and fuzzy controller can be managed to take advantage of their positive attributes.

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HBPI Controller of IPMSM using fuzzy adaptive mechanism (피지적응 메카니즘을 이용한 IPMSM의 HBPI 제어기)

  • Lee, Jung-Ho;Choi, Jung-Sik;Ko, Jae-Sub;Kim, Jong-Kwan;Park, Ki-Tae;Park, Byung-Sang;Chung, Dong-Hwa
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.210-212
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    • 2006
  • This paper presents Hybrid PI(HBPI) controller of IPMSM drive using fuzzy adaptive mechanism control. In general, PI controller in computer numerically controlled machine process fixed gain. They may perform well under some operating conditions, but not all. To increase the robustness, fixed gain PI controller, HBPI controller proposes a new method based self tuning PI controller. HBPI controller is developed to minimize overshoot and settling time following sudden parameter changes such as speed, load torque, inertia, rotor resistance and self inductance. The results on a speed controller of IPMSM are presented to show the effectiveness of the proposed gain tuner. And this controller is better than the fixed gains one in terms of robustness, even under great variations of operating conditions and load disturbance.

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HBPI Controller of Induction Motor using Fuzzy Adaptive Mechanism (퍼지 적응 메카니즘을 이용한 유도전동기의 HBPI 제어기)

  • Nam Su-Myung;Lee Hong-Gyun;Chung Dong-Hwa
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.54 no.8
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    • pp.395-401
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    • 2005
  • This paper presents Hybrid PI(HBPI) controller of induction motor drive using fuzzy control. In general, PI controllers used in computer numerically controlled machines process fixed gain. They may perform well under some operating conditions, but not all. To increase the robustness of fixed gain PI controller, HBPI controller proposes a new method based self tuning PI controller. HBPI controller is developed to minimize overshoot and settling time following sudden parameter changes such as speed, load torque, inertia, rotor resistance and self inductance. The results on a speed controller of induction motor are presented to show the effectiveness of the proposed gam tuner. And this controller is better than the fixed gains one in terms of robustness, even under great variations of operating conditions and load disturbance.

Design of Parallel Type Fuzzy Controller Using Model Reference Fuzzy Algorithm (모델참조 퍼지 알고리즘을 이용한 병렬형 퍼지제어기 설계)

  • 추연규;김병철;이광석;김현덕
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.888-892
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    • 2002
  • In this paper, parallel type fuzzy controller is designed by using a hybrid connected type fuzzy-PID controller and a model reference fuzzy controller. The first controller that consists a fuzzy-PI and a fuzzy-PD making a hybrid type fuzzy-PID controller plays a role as firstly reaching stable responses and secondly overcoming disturbance in plants. The second controller, model reference fuzzy controller, plays a role as reaching faster responses than other controllers. We have confirmed that we get rapid and stable responses and the controller overcomes disturbance in a short time when there happens disturbance by using parallel type fuzzy controller applying to DC motor in this paper.

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Hybrid Fuzzy PI-Control Scheme for Quasi Multi-Pulse Interline Power Flow Controllers Including the P-Q Decoupling Feature

  • Vural, Ahmet Mete;Bayindir, Kamil Cagatay
    • Journal of Power Electronics
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    • v.12 no.5
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    • pp.787-799
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    • 2012
  • Real and reactive power flows on a transmission line interact inherently. This situation degrades power flow controller performance when independent real and reactive power flow regulation is required. In this study, a quasi multi-pulse interline power flow controller (IPFC), consisting of eight six-pulse voltage source converters (VSC) switched at the fundamental frequency is proposed to control real and reactive power flows dynamically on a transmission line in response to a sequence of set-point changes formed by unit-step reference values. It is shown that the proposed hybrid fuzzy-PI commanded IPFC shows better decoupling performance than the parameter optimized PI controllers with analytically calculated feed-forward gains for decoupling. Comparative simulation studies are carried out on a 4-machine 4-bus test power system through a number of case studies. While only the fuzzy inference of the proposed control scheme has been modeled in MATLAB, the power system, converter power circuit, control and calculation blocks have been simulated in PSCAD/EMTDC by interfacing these two packages on-line.

Design of Parallel Type Fuzzy Controller Using Model Reference Plant (플랜트 모델참조를 이용한 병렬형 퍼지제어기 설계)

  • 추연규
    • Journal of Institute of Control, Robotics and Systems
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    • v.9 no.5
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    • pp.379-383
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    • 2003
  • Parallel type fuzzy controller is designed by using a hybrid connected type fuzzy-PID controller and a model reference fuzzy controller. The first controller, consists of a fuzzy-PI and a fuzzy-PD making a hybrid type fuzzy-PID controller, plays a role as firstly reaching stable responses and secondly overcoming disturbance in plants. The second controller, model reference fuzzy controller, plays a role as reaching faster responses than other controllers. We have confirmed that the controller produces rapid and stable responses and overcomes disturbance by using parallel type fuzzy controller in a DC motor application.