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원성홍(Sung Hong Won),한기수(Ki-Soo Han) 대한전기학회 2017 전기학회논문지 P Vol.66 No.1
Recently, many motor analysis methods have been developed and studied. Among these methods, the finite element method(FEM) and the analytic method are most popular in field engineers because of the accuracy of FEM and the convenience and rapid analysis time of the analytic method. Contrary, the finite element method has a weakness in calculation time and it is not easy to obtain the instantaneous characteristics value of motor with the analytic method. In this paper, the authors proposes a novel method for calculating the instantaneous characteristics of motors with the magnetic slot equivalent circuit.
원성홍(Sung Hong Won) 대한전기학회 2014 전기학회논문지 P Vol.63 No.3
This paper proposes a novel efficiency measurement method without dynamometer. In case of small motor, the measurement of efficiency is not easy because the percentage of mechanical loss is comparably huge and the mechanical loss is not easy to be measured. In this paper, the authors proposes a method which can measure the efficiency with two test motors. This method can be useful to engineers who study small electrical motors.
정류자를 이용한 스위치드 릴럭턴스 전동기의 구동에 관한 연구
원성홍(Sung-Hong Won),한학근(Hak-Guhn Han),정인성(In-Sung Jung) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.4
This paper presents the novel design and implementation of a switched reluctance motor with commutator. Unlike typical switched reluctance motor, this motor doesnt require semi-conductor devices and inverter circuits for driving. Instead, the brushes and commutator can make rotating field for driving the switched reluctance motor. Moreover, because this motor has no magnet, the total cost for manufacturing the motor is very cheap. In order to verify the usability of the proposed motor, the authors manufactured the prototype motor, and showed the torque-speed curve of the motor.
동기형 릴럭턴스 전동기의 토크와 역률의 최대화를 위한 설계 및 해석
김원호(Won-Ho Kim),김기찬(Ki-Chan Kim),원성홍(Sung-Hong Won),안준선(Jun-Sun Ahn),최승길(Seung-Gil Choi),이주(Ju Lee) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In case of the synchronous reluctance motor, the torque is proportional to silency difference and the power factor is in proportion to silency ratio. This paper presents the rotor design variable that has a effect on silency difference and silency ratio for getting a maximum torque and a power factor in the synchronous reluctance motor. To carry through the object, a number of the analysis model is reduced by DOE (Design of Experiments) and the main effects are found by the FEM (Finite Element Analysis).
이성구(Sung Gu Lee),원성홍(Sung Hong Won),김태형(Tae Heoung Kim),이형우(Hyung Woo Lee),권삼영(Samyoung Kwon),이주(Ju Lee) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
This paper provides the design of propulsion system for the catenary-pantograph run tester. Permanent magnet linear synchronous motor design suitable for an high-speed ground transportation system which need a big acceleration force. The propulsion system of the catenary-pantograph run tester need high speed and big acceleration.