• Title/Summary/Keyword: Electrical Design

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Design of Robust MIESF Controller (강인한 특성을 갖는 MIESF제어기의 설계)

  • Park, Gwi-Tae;Lee, Kee-Sang;Kim, Sung-Ho
    • Proceedings of the KIEE Conference
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    • 1990.11a
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    • pp.396-401
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    • 1990
  • The objective is to explore design concept for MIESF(Modified Integral error and State Feedback) controller. A method is outlined for designing MIESF controller that provides robust performance despite real parameter uncertainties in the process model. Insight into the design process is gained by viewing the MIESF from the perspective of IMC(Internal Model Control).

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Maximum Thrust Design of Permanent Magnet Linear Synchronous Motor Using Genetic Algorithm and Surface Harmonic Method (유전알고리즘과 공간고조파법을 이용한 PMLSM의 출력 최대화 설계)

  • Lee, Dong-Yeup;Yoon, Kang-Jun;Kim, Gyu-Tak
    • Proceedings of the KIEE Conference
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    • 2003.10b
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    • pp.66-68
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    • 2003
  • This paper is deal with the method of design for the optimum model using genetic algorithms in slotted Permanent Magnet Linear Synchrous Motor (PMLSM). The objective functions are maximum thrust and minimum detent force. Characteristic analysis method is used 2D space harmonic analysis method. Design parameters are PM width, PM height and slot width.

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Thrust Analysis of Linear Synchronous Reluctance motor according to Design Parameters (직선형 동기 릴럭턴스 전동기의 설계변수에 따른 추력 특성 해석)

  • Jang, Seok-Myeong;Park, Ji-Hoon;Kwon, Jeong-Ki
    • Proceedings of the KIEE Conference
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    • 2004.10a
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    • pp.89-91
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    • 2004
  • This paper deals with thrust characteristic by design parameter of linear synchronous reluctance motor(LSynRM). Mover of LSynRM used stator of linear induction machine. Design parameter being teeth width, teeth depth, airgap and displacement, we analyzed thrust characteristic on singleness or complex case. Also, we presented thrust characteristic using finite element method.

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The Equilibrium Design of Radial Magnetic Force for Reduction of Vibration in IPM type BLDC Motor

  • Lee, Gyeong-Deuk;Kim, Gyu-Tak
    • Journal of Electrical Engineering and Technology
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    • v.11 no.2
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    • pp.377-382
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    • 2016
  • In this paper, influence of vibration on cogging torque and Radial Magnetic Force(RMF) imbalance was investigated in the IPM type BLDC motor. Design of cogging torque reduction and the RMF equilibrium was proceed applied to Design of Experiment(DOE). Vibration test results, the RMF imbalance was confirmed that a significant impact of vibration.

Robust Pole Assignment Design for Linear Time-varying Uncertain Systems using LMI (LMI 기법을 이용한 시변 불확정성 선형 시스템의 강인 극점 배치 설계)

  • Kim, Jae-Sung;Ma, Sam-Sun;Kim, Jin-Hoon
    • Proceedings of the KIEE Conference
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    • 1999.11c
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    • pp.491-493
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    • 1999
  • In this paper, we consider the design of robust pole assignment for linear system. Considered uncertainty is time-varying uncertainty. Based on Lyapunov stability theorem and linear matrix inequality(LMI) we present the design result for pole assignment. Finally, we give some numerical examples to show the applicability and usefulness of our presented results.

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A Study on the Effects of Insulating Material Barrier on the Surface Creepage over Discharge (연면방전의 특성과 절연체의 영향 및 그 응용)

  • Sung Won Rhee
    • 전기의세계
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    • v.19 no.2
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    • pp.12-17
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    • 1970
  • In the design of electrical equipment insulation, it is customary to place pressboard and other insulating material at right angle to the electrical discharge path, which is based on the insulation tests performed on equipment under various conditions such as types of insulation, applied voltage and other unique situations. Since electrical equipment manufacturing started only recently, there is a scarcity of available data on insulation problems, which make it difficult for the design engineers. The author untook this study to provide such analytical design data for various conditions based on the experiment conducted on the equipment being manufactured, thus reducing possible errors in the process.

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Optimization of Design Parameters of a Linear Induction Motor for the propulsion of Metro (신경회로망을 이용한 경전철 차량추진용 선형유도전동기의 설계변수 최적화)

  • Im, Dal-Ho;Park, Seung-Chan;Lee, Il-Ho
    • Proceedings of the KIEE Conference
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    • 1995.11a
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    • pp.55-58
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    • 1995
  • An optimum design method of electric machines using neural network is presented. In this method, two multi - layer perceptrons of analysis and design neural network are used in optimizing process. A preliminary model of linear induction motor for subway is designed by the electric and magnetic loading distribution method and then optimized by presented method.

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Optimum design of Linear Induction Motor Using Genetic Algorithm and Neural Network (유전 알고리즘과 신경 회로망을 이용한 선형 유도전동기 최적 설계)

  • Lee, Ju-Hyun;Kim, Hong-Sik;Kim, Chang-Eob
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.56-60
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    • 2002
  • The paper presents the optimum design of a linear induction motor(LIM) using Genetic algorithm, Neural Network and SUMT. The design variables are optimized by three different optimization methods and the results are discussed.

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Design and Analysis of Maximal-Period Sequences Based on Nonlinear Feedback Shift Registers

  • Tsuneda, Akio;Oka, Mayumi;Nakazawa, Masahide;Inoue, Takahiro
    • Proceedings of the IEEK Conference
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    • 2000.07b
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    • pp.567-570
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    • 2000
  • A design method of nonlinear feedback shift registers that can produce maximal-period sequences is given. Such a design is based on one-to-one mappings which are similar to well-known chaotic maps. Some properties of generated binary sequences are investigated and discussed.

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Design Space Methodology and Its Application in Interior Permanent Magnet Motor Design

  • Fan, Tao;Li, Qi;Wen, Xuhui;Xu, Longya
    • Journal of international Conference on Electrical Machines and Systems
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    • v.1 no.3
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    • pp.303-311
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    • 2012
  • An innovative interpretation of the per-unit interior permanent magnet (IPM) machine model known as Design Space is presented in this paper. Based on the proposed Design Space formulation, an effective computation method to predict IPM machine performance factors, such as the current and power factor in a full range of speeds, is proposed. A systematic methodology is summarized, which translates the full speed range machine design procedure into the region determination on the so-called Design Space. The effect of dc-link voltage is also analyzed in a similar manner with the current and power factor. A series of IPM motors have been designed, and a preferred motor is selected with the help of the proposed Design Space Methodology (DSM), which has the best tradeoff between the nominal voltage and the dropped voltage condition. Experiment results show that the selected motor satisfies the machine requirements and all the design constrains, such as the current and back-EMF limitations.