Closed loop system

In this paper, we investigate the problem of finite-time guaranteed cost control of linear uncertain conformable fractional order systems. Firstly, a new cost function is defined. Then, by using some properties of conformable fractional calculus, some new sufficient conditions for the design of a state feedback controller that makes the closed-loop systems finite-time stable and guarantees an adequate cost level of performance is derived via linear matrix inequalities, therefore can be efficiently solved by using existing convex algorithms.

7p mangamanga 29-02-2020 14 0   Download

In this paper, a nonlinear optimal control law based on aggregated variables is presented. The criterion is chosen so that the dynamic characteristics of object are included. The stability of the closed-loop system is global according to the Lyapunov stability theory. The control law depends explicitly on ship model parameters, so that it is can be easily to tune when the parameters change.

8p thienthanquydu 19-10-2018 16 0   Download

This paper considers the capacity determination in a closed-loop supply chain network when a queueing system is established in the reverse flow. Since the queueing system imposes costs on the model, the decision maker faces the challenge of determining the capacity of facilities in such a way that a compromise between the queueing costs and the fixed costs of opening new facilities could be obtained.

18p toritori 11-05-2020 2 0   Download

This paper presents a control of active suspension system for quarter-car model with two-degree-of-freedom using H and nonlinear adaptive robust control method. Suspension dynamics is linear and treated by H method which guarantees the robustness of closed loop system under the presence of uncertainties and minimizes the effect of road disturbance to system.

9p sansan2 26-05-2018 24 3   Download

The platform developed seeks to increase awareness of the potential for the integration of closed-loop control into existing open source designs and will help to improve the performance of the low-cost 3D printer system.

7p praishy2 27-02-2019 10 1   Download

It is important to have speed control of motors on UAVs since the system dynamics are related to the rotation speed of the motors. This paper presents a sensorless phase voltage detection scheme to measure the rotation speed. A PID controller is implemented to ensure the performance of the motors. A mathematical model of Delta-Connected BLDC motors is built for analyzing the relationship between phase voltage and rotation speed.

7p praishy2 27-02-2019 6 0   Download

Marine electromagnetic transmitter transmits large power variable frequency electromagnetic wave to the seabed so as to obtain the submarine structure and mineral resources. The mathematical model of controlled source circuit needs to be established to realize closed loop control for increasing control precision and output transient performance of the electromagnetic wave.

8p vivalletta2711 11-01-2020 5 0   Download

Geothermal ventilation provides a better alternative in securing the energy crises. Geothermal energy is a heat contained within the earth that generates geological phenomena on a planetary scale. It is not only available in the form of volcanoes, hot water stream but, whole earth acts as a source of geothermal energy for 365 days and all season of year. There are three basic components of geothermal heating pump system (GHPS); ground loop, geothermal heat pump and distribution system.

10p chauchaungayxua5 08-05-2020 2 0   Download

In this paper, the impact of machine failures on production lines in a closed-loop supply chain systems is examined. For this purpose, a new method is proposed for scheduling manufacturing workshops in a supply chain systems.

24p tocectocec 24-05-2020 2 0   Download

A control system is a collection of components working together under the direction of some machine intelligence. In most cases, electronic circuits provide the intelligence, and electromechanical components such as sensors and motors provide the interface to the physical world. A good example is the modern automobile. Various sensors supply the on-board computer with information about the engine’s condition. The computer then calculates the precise amount of fuel to be injected into the engine and adjusts the ignition timing. T...

661p hoanglong89hui 24-06-2010 221 104   Download

Mechatronics Dc Motor - Tachometer Closed-Loop Speed Control System

29p nguyen3 13-11-2009 175 54   Download

This book will discuss the topic of Control Systems, which is an interdisciplinary engineering topic. Methods considered here will consist of both "Classical" control methods, and "Modern" control methods. Also, discretely sampled systems (digital/computer systems) will be considered in parallel with the more common analog methods. This book will not focus on any single engineering discipline (electrical, mechanical, chemical, etc), although readers should have a solid foundation in the fundamentals of at least one discipline....

208p 326159487 17-05-2012 64 13   Download

The current control problems present natural trend of increasing its complexity due to performance criteria that is becoming more sophisticated. The necessity of practicers and engineers in dealing with complex dynamic systems has motivated the design of controllers, whose structures are based on multiobjective constraints, knowledge from expert, uncertainties, nonlinearities, parameters that vary with time, time delay conditions, multivariable systems, and others.

0p aries23 29-09-2012 56 9   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Continuous Drug Infusion for Diabetes Therapy: A Closed-Loop Control System Design

10p sting10 24-02-2012 39 4   Download

Chương 1 - Giới thiệu về hệ thống điều khiển tự động. Chương này cung cấp cho người học các kiến thức: Lịch sử phát triển của cơ sở tự động, two types of control systems, closed-loop control, multivariable control system,... Mời các bạn cùng tham khảo nội dung chi tiết.

62p tangtuy18 21-07-2016 30 2   Download

After modeling and analyzing the system, this paper suggests a new control method using an online learning neural network in closed-loop to control the Pan-Tilt platform that moves the Camera to keep tracking an unknown moving object.

11p dieutringuyen 07-06-2017 35 2   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: 2 CO response curves can be a measured with field-portable closed-loop photosynthesis system...

5p toshiba9 12-10-2011 37 1   Download

In this paper, the settling time of closed-loop systems controlled with PID, which is established by using magnitude and symmetric optimum methods, is analyzed. These methods have some limitations such as limited frequency bands, existence of overshoot and larger settling time.

11p cumeo4000 01-08-2018 11 0   Download

Reverse logistics is a modern field of consideration, research and study, providing helpful information on the operation of the closed-loop supply chain. Although the starting point of this field is traced back to the early 90’s, no standard method has been suggested, neither prevailed. The purpose of this paper is to introduce a new approach on the study of reverse logistics. It is actually a review on how System Dynamics (SD) can be a helpful tool when it is used in the reverse logistics field.

14p vinguyentuongdanh 20-12-2018 21 0   Download

This paper presents an observer output-feedback load frequency control for power systems with uncertain parameters and time delays in communication networks. First, an observer-based controller is designed dependent on only the observer output. Therefore, the conservatism is reduced and the robustness is enhanced.

16p vioishi2711 01-07-2019 1 0   Download