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조광래,차대범,주영훈 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-
In this paper, we develop the intelligent digitally redesigned PWM fuzzy controller for nonlinear systems. Takagi-Sugeno (TS) fuzzy model is used to model the nonlinear systems and a continuous-time fuzzy-model-based controller is designed based on the extended parallel-distributed-compensation (EPDC) method. The digital controllers are determined from existing analogue controllers. The proposed method provides an accurate and effective method for digital control of continuous-time nonlinear systems and enables us to efficiently implement a digital controller via the pre-determined continuous-time TS fuzzy-model-based controller. We have applied the proposed method to the Chen's chaotic attractor system to show the effectiveness and feasibility of the proposed method.
불확실성을 갖는 동적 시스템을 위한 퍼지모델 기반 제어기의 지능형 디지털 재설계
조광래,주영훈 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-
In this paper, we develop an intelligent digital redesign method for fuzzy-model-based controllers, effective for tracking control of nonlinear system which may also contain uncertainties. TS fuzzy model is adopted for fuzzy modeling of uncertain nonlinear systems. An extended parallel distributed compensation technique is then used to design a fuzzy-model-based controller for both stabilization and tracking. The designed continuous-time controller is then converted to an equivalent discrete-time controller by using an integrated intelligent digital redesign method.. TS fuzzy model for the representative a single link flexible joint robot system is constructed for the first time, and is used as an illustrative example to show the effectiveness and the feasibility of the developed design method.
유산소성 운동과 홍삼투여가 당뇨환자의 신체조성과 혈당에 미치는 영향
박희석,조광래 대불대학교 2001 論文集 Vol.7 No.1
This study is to investigate that aerobic exercise and the Red Ginseng taking influence the body composition and blood glucose in diabetes patients, The subjects of study were 18 non-insulin dependent diabetes mellitus patients in the fifties man, and the subjects parted into control group(CG, N=6), exercise group (EG, N=6) and exercise & Red Ginseng oral administration group(ECG, N=6), and trained to 50∼70% HRmax intensity by using bicycle ergometer for 5 times a week through 12 weeks. The results were as follows: 1. The change of body composition among the three groups. 1) The change of body& fat appeared no change of CG but decrease of EG and EGG(p<.05). Between the exercise pre and post, body fat is decreased more in pre than post(p<.001). 2) The change of LBM did not statistically show significant difference in each group. 2. The change of blood glucose among those had no change in CG but decrease in EG and EGG(p<.001). Between the exercise pre and post, the change of glucose is decreased more in post than pre(p<.001).