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김성결(Kim S.K),나종덕(Na J.D),정병호(Chung B.H),이강연(Lee G.Y),조금배(Cho G.B),백형래(Baek H.L) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
To use land of area that land price hike is less as is serious being population centralism of big city by economic growth maximum, high building is making much. However, existent vertical carrier system has application height difficult a lot of controversial points in the High building. Specially, method that depend on iron vessel weight of line a lot of weights occupy and can increase ratio that vertical carrier system occupies gross area of building as height of building is high lineally and increase to maximum 30%. I wish to apply linear induction motor that is not existent vertical carrier system to solve these problem and design carrier system.
유도전동기 직접토크제어의 히스테리시스 밴드 크기의 최적화에 관한연구
정병호(B.H. Jeong),김성결(S.K. Kim),박정국(J.K. Park),오금곤(G.K. Oh),조금배(G.B. Cho),백형래(H.L. Baek) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Most of all, DTC drive is very simple in its Implementation because it needs only two hysteresis comparator and switching vector table for both flux and torque control. The switching strategy of a conventional direct torque control scheme which is based on hysteresis comparator results in a variable switching frequency which depends on the speed, flux, stator voltage and the hysteresis of the comparator. The amplitude of hysteresis band greatly Influences on the drive performance such as flux and torque ripple and inverter switching frequency In this paper the Influence of the amplitudes of flux and torque hysteresis bands and sampling time of control program on the torque and flux ripples are investigated. Simulation results confirm the superiority of the DTC under the proposed method over the conventional DTC<br/>