입력 성형기의 고차 시스템 적용을 위한 GA활용 = An Application of the Genetic Algorithm for the Input Shaper on the High Order System

다국어 초록 (Multilingual Abstract)

Recently, industrial systems are becoming quicker and lighter to enable the reduction of energy consumption and increase productivity. So the latest systems are more flexible and rapid than the previous systems.
But, with this improvement, another problem has emerged, such as the increase in residual vibration when a system is started or stopped. The input shaper is a command generation method that can remove residual vibration.
It can provide a solution to the problem of residual vibration in industrial systems. However, it is difficult to generate the input shaper in high order systems, such as a typical industrial system because the input shaper is induced from the system’s vibration characteristics. This study focused on the extra insensitivity shaper that can compensate for the system’s modeling error such as input dynamics, and the high order’s system affection. A genetic algorithm was deployed to adjust a vibration limitation for the extra insensitivity of the input shaper. A plant is a low damping system that includes one zero and a pole. The fitness functions are an error signal of the system’s response with normalized frequency variations. Verification of the suggested system is satisfied by comparison between the zero vibration derivative input shaper’s response and the suggested one.

참고문헌 (Reference)

1 김경수, "컨볼루션을 이용한 전자 유압 시스템의 피크압력 저감 제어 연구" 사단법인 유공압건설기계학회 16 (16): 59-66, 2019

2 김도태, "전기∙유압 서보 시스템의 제어성능 비교" 사단법인 유공압건설기계학회 3 (3): 14-20, 2006

3 W. E. Singhose, "Vibration Reduction Using Multi-Hump Extra-Insensitive Input Shapers" 5 : 3830-3834, 1995

4 W. Gao, "Variable Structure Control of Nonlinear System : A New Approach" 40 (40): 45-55, 1993

5 W. Singhose, "Residual Vibration Reduction Using Vector Diagrams to Generate Shaped Inputs" 116 (116): 654-659, 1994

6 N. C. Singer, "Preshaping Command Inputs to Reduce System Vibration" 112 (112): 76-82, 1990

7 J. Shan, "Modified input shaping for a rotating single-link flexible manipulator" 285 : 187-207, 2005

8 G. G, Jin, "Genetic Algorithms and Their Applications" Kyo Woo Sa 245-259, 2000

9 J. Vaughan, "Comparison of robust input shapers" 315 : 797-815, 2008

10 C. Conker, "A review of command shaping techniques for elimination of residual vibrations in flexible-joint manipulators" 18 (18): 2947-2958, 2016