α-레벨 집합 분해에 의한 서보제어용 퍼지추론 연산회로 구현 = Implemented Circuits of Fuzzy Inference Engine for Servo Control by Using Decomposition of a-Level Set

다국어 초록 (Multilingual Abstract)

This paper presents hardware scheme of fuzzy inference engine, based on -level set decomposition of fuzzy sets for fuzzy control of DC servo system. We propose a method which is directly converted to PWM actuating signal by a one body of fuzzy inference and defuzzification. The influence of quantity -levels on input/output characteristics of fuzzy controller and output response of DC servo system is investigated. It is concluded that quantity -cut 4 give a sufficient result for fuzzy control performance of DC servo system. The experimental results shows that the proposed hardware method is effective for practical applications of DC servo system.

참고문헌 (Reference)

1 T. Yamakawa, "The Current Mode Fuzzy Logic Integrated by the standard CMOS Process" 161-167, 1986.

2 Stamatis Bourasm, "Mixed Analog-Digital Fuzzy Logic Controller with Continuous-Amplitude Fuzzy Inference and Defuzzificaion" 6 (6): 205-215, 1998

3 Shinq-Jen Wu, "Discrete-Time Fuzzy Controller Design : Global Concept Approach" 10 (10): 21-37, 2002

4 上原, "Analog/membership grade 變換機能お 有する ファジイ推論 Engine" 1996.

5 Emmanuel G. Collins, "A Fuzzy Logic Approach to Design with Variance Constrains" 10 (10): 32-42, 2002

6 Sang Yeal Lee, "A Fuzzy Controller an Aerology Simulator Using Phase Plane Method" 9 (9): 791-801, 2001