7th International Workshop on Advanced Motion Control. Proceedings (Cat. No.02TH8623)
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Initial value compensation applied to disturbance observer-based servo control in HDD
- Trang 34-39
The mode switching control (MSC) technique makes use of several controllers, each one designed to optimize a particular control objective. The switching between-controllers is performed at the supervisory level. MSC is often used when the control objective is different in different operational regions as in the HDD servo system where three different operation modes can be identified, i.e. seek, se......
#Servosystems #State estimation #State feedback #Control systems #Servomechanisms #Informatics #Transient response #Magnetic heads #Design optimization #Closed loop systems
Sliding-mode motion controller with adaptive fuzzy disturbance estimation
- Trang 300-304
In this work, a motion control scheme, which belongs to the class of control schemes known as sliding mode control with disturbance estimation, is proposed. The adaptive fuzzy disturbance estimator works as an online identifier of most of the robot dynamics. An adaptation algorithm is derived by using the Lyapunov stability theory and provides global asymptotic stability of the state errors. For t......
#Motion control #Sliding mode control #Programmable control #Adaptive control #Fuzzy control #Motion estimation #Robots #Heuristic algorithms #Lyapunov method #Asymptotic stability
Network resource allocation method for communicating control systems
- Trang 80-85
In order to realize distributed control systems, it is required to tie up plural distributed subsystems through a network, and the fusion of control engineering and realtime communication technology is also required. In this article, a new network resource allocation method is proposed. This is based on a traffic control queuing mechanism called ALTQ. To fill the delay time constraints for each fl......
#Resource management #Control systems #Communication system control #Distributed control #Control engineering #Communications technology #Traffic control #Delay effects #Time factors #Fluid flow measurement
Bộ điều khiển dòng điện dựa trên phần mềm cải tiến cho tải ba pha Dịch bởi AI
- Trang 221-225
Một bộ điều khiển dòng điện theo băng biên độ mới cho các bộ biến tần nguồn điện (VSI) được trình bày. Các quỹ đạo dòng điện của hệ thống ba pha được chuyển đổi thành hệ tọa độ tĩnh /spl alpha/-/spl beta/, điều này cho phép tách rời các thành phần lỗi dòng điện và hỗ trợ việc ứng dụng các hình dạng khác nhau cho các ranh giới lỗi dòng điện. Kỹ thuật mới này, đã được xác minh qua thực nghiệm, dựa t......
#Bộ biến tần #Lỗi máy tính #Băng biên độ #Kiểm soát điện áp #Phần mềm ứng dụng #Hình dạng #Chuyển mạch điện áp bằng không #Tần số chuyển mạch #Mô phỏng máy tính #Phòng thí nghiệm
Repetitive controller design for track-following servo system of an optical disk drive
- Trang 176-181
In the track-following servo system of an optical disk drive, external disturbances with significant periodic components cause tracking errors of a periodic nature. To effectively reject such disturbances, repetitive control has been employed. However, plant uncertainty makes it difficult to design a repetitive controller which both ensures system stability and improves tracking accuracy. In this ......
#Optical control #Control systems #Optical design #Servomechanisms #Disk drives #Optical attenuators #Uncertainty #Stability #Optical devices #Sufficient conditions
Fuzzy model reference self-tuning controller
- Trang 153-158
This paper proposes a new adaptation algorithm called fuzzy model reference self-tuning controller (FMRSTC). The proposed algorithm is designed to include a reference model, which is used to describe the desired performance to the adaptation mechanism. A comprehensive analysis and comparison between the proposed algorithm, the conventional self-tuning fuzzy controller (STFC) and fuzzy model refere......
#Fuzzy control #Force control #Algorithm design and analysis #Control systems #Tuning #Adaptive control #Fuzzy systems #Testing #Regulators #System performance
Neural network enhancement of closed-loop controllers for nonlinear systems
- Trang 291-295
The actual trend is to combine traditional control methods with neural networks in parallel. This paper places the neural network inside the closed loop, in series with the existing controller. With the neural network inside the closed-loop, randomly initialized weights, unknown performance levels, and multiple reinitializations are more difficult. A problem not so readily seen is that the weights......
#Neural networks #Nonlinear control systems #Control systems #Nonlinear systems #Automatic control #Automation #White noise #Convergence #Neurofeedback #Testing
A design method of quasi-optimum control system structure and its parameters using combined controller and performance comparison for controller structure
- Trang 203-208
PID controller, disturbance observer, and so on have been applied to control of servo systems. However, it is difficult to know which controller is the best for given control object and specifications. If we want to realize a best performance among many controllers, we have to design each controller independently. In this paper, we derive a combined controller that is based on the disturbance obse......
#Control systems #Design methodology #Three-term control #Robust stability #Servomechanisms #Drives #Attenuation #Control system synthesis #Vectors #Noise robustness
Autonomous mobile robot with multiprocessor control system
- Trang 467-471
The present technological trends in microelectronic, sensor and computing techniques make possible intensive research and development in the large area of applications. One of the most progressive area is the development of autonomous mobile robots. This paper deals with the multiprocessor control system design for experimental autonomous mobile robot (ALR) VUTBOT-2 fir automatic attendance of man......
#Mobile robots #Robot control #Control systems #Automatic control #Communication system control #Communication channels #Mobile communication #Microelectronics #Research and development #Manufacturing systems
Nonlinear feedback control with sliding mode of a linear induction motor
- Trang 226-231
The paper presents a control technique achieving high dynamic performance for linear induction motor drives. A nonlinear feedback is used to decouple the thrust from the flux. The feedback is based on a simplified model that is obtained by extension of the rotary induction motor model. Conversely, robustness to parameter variations and to unmodelled dynamics that are produced by the end-effects is......
#Feedback control #Induction motors #Sliding mode control #Magnetics #Robust control #Force control #Gears #Automatic control #Induction motor drives #Industrial control