• Journal of Advanced Marine Engineering and Technology
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• 제8권1호
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• pp.64-71
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• 1984

In this paper, the fundemental equation on the Trans-vector control of 3.phi. Induction motor drive and the new equivalent circuit to be adapted for this equation, have been obtained, and control drives system to be coincide with this equation is made. Therefore, it has been obtained that control scheme can always be used motor drive. 3.phi. Induction motor drive has been got the dynamic behavior the same as that of DC motor drive. The drive dynamic response is very rapid because of Trans-vector control on the I_1$ (primary current) and .${\omega}_1$ (frequency of primary current) of the Induation mechine. This paper indicates that a practicality of the drive control system and the rationalty of the theory have been identified with the experimental results. The effect of parameter variations on the drive dynamic response can be evaluated from these results.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.1087-1088
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• 2011

영구자석형 전동기는 높은 출력밀도를 가지므로 현재까지 많은 연구가 진행되어 왔다. 일반적으로 매입형 영구자석 동기전동기는 영구자석의 사용량이 많을수록 돌극비를 향상 시킬 수 있으므로 발생토크 성분 중 릴럭턴스 토크의 비중을 키울 수 있다. 이는 토크 발생 시 입력전류를 저감시켜 동손이 감소하고 효율을 증가시키는 효과를 기대할 수 있다. 본 논문에서는 매입형 영구자석 동기전동기의 등가자기회로법를 이용한 설계에 대해 다루고자 한다. 등가자기회로법은 계산시간이 빠르고 전동기 구성인자들의 영향을 신속하게 살펴 볼 수 있으므로 초기설계에 많이 사용된다. 본 논문에서는 등가자기회로법을 이용하여 공극자속밀도를 산정한 후 슬롯을 고려한 relative permeance, 그리고 무부하 역기전력을 산정하고 최종적으로 유한요소법을 이용하여 검증한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.188-190
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• 2006

This paper suggests the inductive power collector using electromagnetic induction for railway vehicle such as the PRT(Personal Rapid Transit) system. Some ideas for inductive power collector design to improve the power transfer performance are presented. The inductive power of secondary part is related to mount of linked flux to secondary part by the length of air-gap, which is expected by such a system parameter as leakage reactance and magnetizing reactance. This paper will study for some performance of traditional transformer from equivalent circuit considering leakage reactance.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2017년도 추계학술대회
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• pp.155-156
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• 2017

본 논문에서는 단일 셀과 배터리 팩의 전기적 특성 실험 기반 내부 파라미터를 추출하고 등가회로 모델에 적용하여 시뮬레이션 및 검증을 진행하였다. 본 논문에서는 임의로 선정한 단일 셀에 대한 파라미터를 추출하여 스크리닝이 이상적으로 되었다는 가정 하에 팩 단위로 확장한다. 단일 셀에서 확장된 파라미터와 배터리 팩 자체의 파라미터를 구하여 시뮬레이션 결과를 실제 전압과 비교하여 검증한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.875_876
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• 2009

Recently, Interior Permanent Magnet Synchronous Motor(IPMSM) is widely used in the industry applications such as power train for hybrid vehicles and compressor motors of air-conditioner due to its high power density and wide speed range. There are some ways for confirming of maximum power in IPMSM. However, This paper suggests that there is a way about making sure maximum power by reducing turn numbers of armature winding. Setting up the voltage equation through the equivalent circuit and vector diagram of IPMSM first, and then estimating the parameter and power of IPMSM by changing the turn numbers of armature winding and voltage. In order to satisfy output power, the turn numbers of armature winding is changed by using the characteristic analysis, and then checking whether secure maximum power or not.

• 전기학회논문지
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• 제60권10호
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• pp.1875-1880
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• 2011

This paper proposes a battery model applicable to Autonomie environment. Also, a various of experiment is implemented for validation. The proposed battery model modifies Randles equivalent circuit and battery parameters are extracted from pulsed current tests. The parameters are two-dimensional function of current and SOC(State of Charge). The battery model is developed in the Matlab/Simulink and is implemented for NiMH Panasonic HHR650D and compared with pulsed current discharge curves. The simulation results validate the accuracy of the proposed model and the model is also tested by adding it on Autonomie for HEV application. Constant current charge/discharge, pulsed current test that can be used to extract battery parameter are performed and test results are used to build up the proposed battery model for Autonomie.

• 한국전기전자재료학회논문지
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• 제18권3호
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• pp.216-218
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• 2005

Planar spiral inductors on silicon substrates were optimally designed using MATLAB, which is a tool to perform numerical computations with matrices. The equivalent circuit parameters of the spiral inductors were extracted from the data measured from the spiral inductors fabricated using a 0.18 $\mu\textrm{m}$ RF CMOS process. The metal width, which is a critical design parameter, was optimized for the maximum quality factor with respect to the operating frequency.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 B
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• pp.913-915
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• 2001

본 논문에서는 유한 요소법을 압전체에 적용하여 계산한 임피던스 파형을 실험적으로 검증하였으며 이를 압전 변압기에 적용하여 압전 변압기의 공진 특성 즉 입력측에서의 전기적인 임피던스 및 출력측에서의 전기적인 임피던스를 해석하였다. 또한 압전 변압기의 공진 모드를 나타내는 어드미턴스 궤적을 이용한 압전 변압기의 등가 회로 정수의 계산을 통해 등가 회로를 구성하였으며 무 부하시의 승압비를 계산하였다. 등가 회로를 이용하여 계산된 승압비의 결과를 유한 요소법을 이용한 결과와 비교하여 손실을 나타내는 등가 회로 정수(R)를 계산하였으며 유한 요소법에 의한 기계적인 진동 손실의 결과와 비교하여 계산된 저항(R)값의 타당성을 검증하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 B
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• pp.849-851
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• 2001

This paper presents experimental method of parameter measurement and starting characteristics of 3 phase induction motor. Equivalent circuit parameters measured by DC test, the blocked rotor test, and no load test were used as the input data for computer simulation. Starting characteristics, such as starting current and torque were analyzed through computer simulation by Matlab, and the simulation results were compared with experiment using strain gauge attached on motor shaft. We conform that experimental results are very similar to that of simulation.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 하계학술대회 논문집 Vol.3 No.2
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• pp.593-596
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• 2002

In this paper, the effect of device model parameter variation on three-dimensional embedded passive devices was investigated using statistical analysis. The optimized equivalent circuit models for several different structures were obtained from HSPICE simulation. The mean and the standard deviation of model parameters were extracted and the sensitivity analysis for each component was performed. From the analysis, the performance and parametric yield of the devices can be analyzed.