A Design Method for Control System to Attenuate Unknown Input Andoutput Disturbances Using Disturbance Observers

2011 ◽  
Vol 497 ◽  
pp. 182-196 ◽  
Author(s):  
Kou Yamada ◽  
Tatsuya Sakanushi ◽  
Iwanori Murakami ◽  
Yoshinori Ando ◽  
Yuki Nakui ◽  
...  
Keyword(s):  
Control System ◽  
Control Systems ◽  
Linear Functional ◽  
Design Method ◽  
Design Methods ◽  
Unknown Input ◽  
Functional Disturbance ◽  
Input And Output

In this paper, we examine a design method for control system to attenuate unknown inputand output disturbances using disturbance observers. The disturbance observers have been usedto estimate the disturbance in the plant. Several papers on design methods of disturbance observershave been published. Recently, parameterizations of all disturbance observers and all linear functionaldisturbance observers for plants with any input and output disturbances were clarified. If parameterizationsof all disturbance observers and all linear functional disturbance observers for any input andoutput disturbances are used, there is a possibility that we can design control systems to attenuate unknowninput and output disturbances effectively. However, no paper has examined a design methodfor control system using parameterizations of all disturbance observers and all linear functional disturbanceobservers for plants with any input and output disturbances. In this paper, in order to attenuateunknown input and output disturbances effectively, we propose a design method for control systemusing parameterizations of all disturbance observers and all linear functional disturbance observersfor plants with any input and output disturbances. In addition, control characteristics of the proposedcontrol system are clarified.

An Application of the Parameterization of all Disturbance Observers for Motor Control Experiment

2010 ◽  
Vol 36 ◽  
pp. 210-219 ◽  
Author(s):  
Iwanori Murakami ◽  
Kou Yamada ◽  
Takaaki Hagiwara ◽  
Da Zhi Gong ◽  
Yoshinori Ando ◽  
...  
Keyword(s):  
Motor Control ◽  
Control System ◽  
Angular Velocity ◽  
Control Systems ◽  
Motion Control ◽  
Linear Functional ◽  
Control Experiment ◽  
Design Method ◽  
Control Field ◽  
Functional Disturbance

Disturbance observers have been used to estimate the disturbance in the plant. Recently, parameterizations of all disturbance observers and all linear functional disturbance observers for plants with any output disturbance were clarified. If parameterizations of all disturbance observers and all linear functional disturbance observers for plants with any output disturbance are used, there is a possibility that we can design control systems to attenuate unknown output disturbances effectively. From this viewpoint, a design method for control system to attenuate unknown output disturbances using parameterizations of all disturbance observers and all linear functional disturbance observers was proposed. However, an application of control system to attenuate unknown output disturbances using parameterizations of all disturbance observers and all linear functional disturbance observers for real plants in motion-control field is not examined. In this paper, we show the effectiveness of the control system to attenuate unknown output disturbances using parameterizations of all disturbance observers and all linear functional disturbance observers for the angular velocity and the angle control for motor control experiment.

scholarly journals The Parameterization of all Disturbance Observers for Time-Delay Plants with any Input and Output Disturbances

1970 ◽  
Vol 8 (1) ◽  
pp. 17-24
Author(s):  
Jie Hu ◽  
Kou Yamada ◽  
Tatsuya Sakanushi
Keyword(s):  
Time Delay ◽  
Linear Functional ◽  
Design Methods ◽  
Functional Disturbance ◽  
Input And Output

In this paper, we examine the parameterization of all disturbance observers for time-delay plants with any input and output disturbances. The disturbance observers have been used to estimate the disturbance in the plant. Several papers on design methods of disturbance observers have been published. Recently, the parameterization of all disturbance observers for plants with any input and output disturbances was clarified. However, no paper examines the parameterization of all disturbance observers for time-delay plants with any input and output disturbances. In this paper, we propose parameterizations of all disturbance observers and all linear functional disturbance observers for time-delay plants with any input and output disturbances.

The Parameterization of All Disturbance Observers for Discrete-Time Plants with Input Disturbance

2011 ◽  
Vol 497 ◽  
pp. 197-209
Author(s):  
Kou Yamada ◽  
Iwanori Murakami ◽  
Yoshinori Ando ◽  
Takaaki Hagiwara ◽  
Da Zhi Gong ◽  
...  
Keyword(s):  
Discrete Time ◽  
Disturbance Observer ◽  
Linear Functional ◽  
Design Methods ◽  
Functional Disturbance ◽  
Input Disturbance

Disturbance observers have been used to estimate the disturbance in the plant. Several paperson design methods of disturbance observers have been published. Recently, the parameterizationof all disturbance observers for discrete-time plants with any output disturbance was clarified. However,no paper examines the parameterization of all disturbance observers for discrete-time plants withany input disturbance. In this paper, we clarify existance conditions of a disturbance observer and ofa linear functional disturbance observer for discrete-time plants with any input disturbance. Underthese conditions, we propose parameterizations of all disturbance observers and all linear functionaldisturbance observers for discrete-time plants with any input disturbance.

scholarly journals Lead and lag controller design in fractional-order control systems

2019 ◽  
Vol 52 (7-8) ◽  
pp. 1017-1028
Author(s):  
Tufan Dogruer ◽  
Nusret Tan
Keyword(s):  
Control System ◽  
Control Systems ◽  
Fractional Order ◽  
Fourth Order ◽  
Controller Design ◽  
Design Method ◽  
Performance Criteria ◽  
Order System ◽  
Fractional Order Control ◽  
Minimum Error

This paper presents a controller design method using lead and lag controllers for fractional-order control systems. In the presented method, it is aimed to minimize the error in the control system and to obtain controller parameters parametrically. The error occurring in the system can be minimized by integral performance criteria. The lead and lag controllers have three parameters that need to be calculated. These parameters can be determined by the simulation model created in the Matlab environment. In this study, the fractional-order system in the model was performed using Matsuda’s fourth-order integer approximation. In the optimization model, the error is minimized by using the integral performance criteria, and the controller parameters are obtained for the minimum error values. The results show that the presented method gives good step responses for lead and lag controllers.

A Design Method for Two-Degree-of-Freedom Simple Multi-Period Repetitive Control Systems

2010 ◽  
Vol 36 ◽  
pp. 243-252 ◽  
Author(s):  
Yoshinori Ando ◽  
Tatsuya Sakanushi ◽  
Kou Yamada ◽  
Iwanori Murakami ◽  
Takaaki Hagiwara ◽  
...  
Keyword(s):  
Control System ◽  
Control Systems ◽  
Transfer Functions ◽  
Design Method ◽  
Output Characteristic ◽  
Degree Of Freedom ◽  
Disturbance Attenuation ◽  
Input Output ◽  
Attenuation Characteristic ◽  
Two Degree Of Freedom

The multi-period repetitive (MPR) control system is a type of servomechanism for periodic reference inputs. Using MPR controllers, transfer functions from the reference input to the output and from the disturbance to the output of the MPR control system have infinite numbers of poles. To specify the input-output characteristic and the disturbance attenuation characteristic easily, Yamada and Takenaga proposed MPR control systems, named simple multi-period repetitive (simple MPR) control systems, where these transfer functions have finite numbers of poles. In addition, Yamada and Takenaga clarified the parameterization of all stabilizing simple MPR controllers. However, using the simple MPR repetitive controller by Yamada and Takenaga, we cannot specify the input-output characteristic and the disturbance attenuation characteristic separately. From the practical point of view, it is desirable to specify the input-output characteristic and the disturbance attenuation characteristic separately. The purpose of this paper is to propose the parameterization of all stabilizing two-degree-of-freedom (TDOF) simple MPR controllers that can specify the input-output characteristic and the disturbance attenuation characteristic separately.

The Parameterization of all Disturbance Observers for Plants with State Disturbance

2010 ◽  
Vol 36 ◽  
pp. 263-272 ◽  
Author(s):  
Kou Yamada ◽  
Iwanori Murakami ◽  
Yoshinori Ando ◽  
Takaaki Hagiwara ◽  
Yoichi Imai ◽  
...  
Keyword(s):  
Linear Functional ◽  
Design Methods ◽  
Functional Disturbance ◽  
Input Disturbance

In this paper, we examine the parameterization of all disturbance observers for plants with any state disturbance. The disturbance observers have been used to estimate the disturbance in the plant. Several papers on design methods of disturbance observers have been published. Recently, the parameterizations of all disturbance observers for plants with any output disturbance and all disturbance observers for plants with any input disturbance were clarified. However, no paper examines the parameterization of all disturbance observers for plants with any state disturbance. In this paper, we propose parameterizations of all disturbance observers and all linear functional disturbance observers for plants with any state disturbance.

Design of a Reconfigurable Dynamic Testbed for Co-Design Method Validation

2017 ◽  
Author(s):  
Anand P. Deshmukh ◽  
Danny J. Lohan ◽  
James T. Allison
Keyword(s):  
Control System ◽  
Design Method ◽  
Design Methods ◽  
System Architectures ◽  
Car Suspension ◽  
Kinematic Behavior ◽  
Wide Range ◽  
Physical Testing ◽  
Dynamic Testbed ◽  
And Control

Physical testing as a technique for validation of engineering design methods can be a valuable source of insights not available through simulation alone. Physical testing also helps to ensure that design methods are suitable for design problems with a practical level of detail, and can reveal issues related to interactions not captured by physics-based computer models. Construction of physical and testing of physical prototypes, however, is costly and time consuming so it is not often used when investigating new design methods for complex systems. This gap is addressed through an innovative testbed presented here that can be reconfigured to achieve a range of different prototype design properties, including kinematic behavior and different control system architectures. Thus, a single testbed can be used for validation of numerous design geometries and control system architectures. The testbed presented here is a mechanically and electronically reconfigurable quarter-car suspension testbed with nonlinear elements that is capable of testing a wide range of both optimal and sub-optimal design prototypes using a single piece of equipment. Kinematic suspension properties can be changed in an automated way to reflect different suspension linkage designs, spring and damper properties can be adjusted in real time, and control system design can be changed easily through streamlined software modifications. While the specific case study is focused on development of a reconfigurable system for validation of co-design methods, the concept extends to physical validation using reconfigurable systems for other classes of design methods.

scholarly journals SISTEM KONTROL PERTERNAKAN IKAN DENGAN MENGGUNAKAN MIKROKONTROLLER BERBASIS ANDROID

2017 ◽  
Vol 2 (1) ◽  
pp. 140-149
Author(s):  
Anip Febtriko
Keyword(s):  
Control System ◽  
Water Supply ◽  
Control Systems ◽  
Electronic Devices ◽  
Control Culture ◽  
Android Application ◽  
Fish Farms ◽  
Input And Output ◽  
Heavy Equipment ◽  
Machine Control

Microcontrollers of digital electronic devices that have input and output as well as control with programs that can be written and erased in a special way, how the microcontroller actually reads and writes data. Microcontrollers are used in automatic controlled products and equipment, such as machine control systems, remote controls, office machines, household appliances, heavy equipment, and toys. Microcontroller can be a control system in fish farms in controlling water supply and controlling food. an interface with the Android application with bluetooth. The ease in controlling Android fish farms is supported, which android will be given an application placed inside the Android. In the android application interface it provides facilities to control culture.

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