The Construction and Analysis of Eutrophication Model for Caohai of Dianchi Lake

2010 ◽  
Vol 160-162 ◽  
pp. 1445-1449
Author(s):  
Guo Zhu Mao ◽  
Shu Zhang ◽  
Hui Bin Du ◽  
Hong Mei Wang ◽  
Li He Chai
Keyword(s):  
Optimal Control ◽  
Systems Analysis ◽  
Time Scale ◽  
Open Systems ◽  
Dianchi Lake ◽  
Control Parameters ◽  
Local Conditions ◽  
Control Techniques ◽  
Main Factors ◽  
And Control

The aquatic ecosystem of lake is a complex open systems, this study that is based on the principles of maximum flux selects Caohai as the object, we apply complex systems analysis to construct eutropication model which is suitable for local conditions and select a larger time scale and control parameters to simulate the eutrophication status to find out the main factors and to put forward reasonable proposals for giving out optimal control techniques. This model can be expanded in time scale, spatial scale and the number of parameters, while the difficulty of calculation and analysis will not be increased. The trend and influencing factors of the system will be got at the same time.

An Etrophication Model for Lake Based on Maximum Flux Principle for Waihai of Dianchi Lake

2011 ◽  
Vol 183-185 ◽  
pp. 805-809
Author(s):  
Hong Mei Wang ◽  
Guo Zhu Mao ◽  
Shu Zhang ◽  
Hui Bin Du ◽  
Wei Dai ◽  
...  
Keyword(s):  
Systems Analysis ◽  
Time Scale ◽  
Open Systems ◽  
Dianchi Lake ◽  
Control Parameters ◽  
Local Conditions ◽  
Control Techniques ◽  
Maximum Flux ◽  
Main Factors ◽  
And Control

The aquatic ecosystem of lake is a complex open systems, taking account of the shortcomings of available eutrophication models for water quality, this study based on the principles of maximum flux selects Waihai as the object, we apply complex systems analysis to construct eutropication model which is suitable for local conditions and select a larger time scale and control parameters to simulate the eutrophication status to find out the main factors and to put forward reasonable proposals for giving out optimal control techniques. This model can be expanded in time scale, spatial scale and the number of parameters, while the difficulty of calculation and analysis will not be increased.

Development of Hands-on Educational Tool for Control Based on ARCS Model and Emotions

2011 ◽  
Vol 23 (5) ◽  
pp. 676-683
Author(s):  
Takao Tasaki ◽  
◽  
Shinichi Watanabe ◽  
Yoshihito Shikanai ◽  
Koichi Ozaki ◽  
...  
Keyword(s):  
High School Students ◽  
Teaching Material ◽  
Control Parameters ◽  
School Students ◽  
Arcs Model ◽  
Control Techniques ◽  
Technical High School ◽  
Hands On ◽  
The Difference ◽  
And Control

In this study, we have developed teaching material for helping technical high-school students understand control techniques. Students understand control techniques through the emotion obtained from the experience of riding a robot. We have considered the correspondence of the teaching material with the ARCS Model. Therefore, the material is aimed at improving student’s interest and willingness to learn mechatronics and control techniques by experience the difference of the response by the change in the control parameters. By performing an experiment, we have verified the educative effect of the teachingmaterial, which can improve the willingness of students to learn and their interest in mechatronics and control techniques.

scholarly journals Nonlinear control of GTI for stabilizing future smart grids

2020 ◽  
Vol 11 (3) ◽  
pp. 1268
Author(s):  
Salam Ibrahim Khather
Keyword(s):  
Control Systems ◽  
Distributed Generation ◽  
Smart Grids ◽  
High Performance ◽  
Low Cost ◽  
Control Parameters ◽  
Leakage Currents ◽  
Control Techniques ◽  
Control Scheme ◽  
And Control

The most important components of the distributed generation frameworks is the GTIs which is an interface amidst the utility and the source of energy. The recent years have seen an increased interest in the design and usage of GTIs due to its smaller weight and size, low cost and higher efficiency. But the problem of leakage currents in the transformerless inverter that is dependant on its topology and control scheme needs to be looked into carefully. Also, the high performance of the GTI requires a stringent control and various control systems are being developed and applied to the GTIs. This paper reviews the various topologies that are classified based on the attributes of the leakage current and the method of decoupling. Further it reviews and compares the different control techniques applied to the GTIs with respect to the frame of reference, controller, modulation technique and the control parameters considered.

scholarly journals A Review of Optimal Control Techniques Applied to the Energy Management and Control of Microgrids

2015 ◽  
Vol 52 ◽  
pp. 780-787 ◽  
Author(s):  
Luis I. Minchala-Avila ◽  
Luis E. Garza-Castañón ◽  
Adriana Vargas-Martínez ◽  
Youmin Zhang
Keyword(s):  
Optimal Control ◽  
Energy Management ◽  
Control Techniques ◽  
And Control

scholarly journals Optimal Control Techniques in Aircraft Guidance and Control

2019 ◽  
Vol 2019 ◽  
pp. 1-2
Author(s):  
Ernesto Staffetti ◽  
Xiang Li ◽  
Yoshinori Matsuno ◽  
Manuel Soler
Keyword(s):  
Optimal Control ◽  
Control Techniques ◽  
Guidance And Control ◽  
And Control

Optimal aircraft take-off with thrust vectoring

2013 ◽  
Vol 117 (1197) ◽  
pp. 1119-1138 ◽  
Author(s):  
A.K. Vinayagam ◽  
N.K. Sinha
Keyword(s):  
Optimal Control ◽  
Optimal Control Problem ◽  
Control Problem ◽  
Thrust Vectoring ◽  
Control Techniques ◽  
Thrust Vector ◽  
Ground Roll ◽  
Ground Reactions ◽  
And Control ◽  
Control Methodology

Abstract The short take-off capability is of paramount importance for a fighter airplane to enable its operation from short and damaged runways. This paper analyses the airplane take-off process from the viewpoint of reducing the ground roll/take-off distance with the use of thrust vectoring. The airplane take-off is modelled incorporating the ground reactions on the landing gear and the thrust vector forces and moments. The take-off problem is formulated as an optimal control problem with appropriate constraints. Though many researchers have applied optimal control techniques for designing airplane manoeuvres, its application to the airplane take-off problem is rarely available in the open literature. It is expedient to use such methodology to understand the use of thrust vectoring features of an aircraft to maximise the benefits in shortening the ground roll/take-off distance. An optimal control methodology has been applied in this paper with the objectives stated above to a twin-engine fighter nonlinear aircraft model popularly known as F-18/HARV. Computation of flight path and control schedules using optimal control has been carried out with and without the use of vector nozzles. A reduction of about 6% in take-off distance and about 29% in ground roll distance is obtained with the use of thrust vector for the configuration studied.

MODELLING AND CONTROL OF OPEN SYSTEMS

2016 ◽  
Vol 7 (1) ◽  
pp. 1-19
Author(s):  
Neto José Alves da Silva ◽  
◽  
Giacaglia Giorgio Eugenio Oscare ◽  
Lamas Wendell de Queiroz ◽  
Bargos Fabiano Fernandes ◽  
...  
Keyword(s):  
Open Systems ◽  
And Control

Probability model for control parameters in the aircraft's information and control systems

2018 ◽  
Vol 2 ◽  
pp. 9-16
Author(s):  
A. Al-Ammouri ◽  
◽  
H.A. Al-Ammori ◽  
A.E. Klochan ◽  
A.M. Al-Akhmad ◽  
...  
Keyword(s):  
Control Systems ◽  
Probability Model ◽  
Control Parameters ◽  
And Control

PROJECT ON ELECTRONIC STEERING SYSYTEM

2018 ◽  
Vol 4 (5) ◽  
pp. 7
Author(s):  
Shivam Dwivedi ◽  
Prof. Vikas Gupta
Keyword(s):  
Steering System ◽  
Essential Elements ◽  
Variable Pressure ◽  
Passenger Cars ◽  
Control Techniques ◽  
Steering Mechanism ◽  
Dynamics And Control ◽  
Active Research ◽  
Electronic Steering ◽  
And Control

As the four-wheel steering (4WS) system has great potentials, many researchers' attention was attracted to this technique and active research was made. As a result, passenger cars equipped with 4WS systems were put on the market a few years ago. This report tries to identify the essential elements of the 4WS technology in terms of vehicle dynamics and control techniques. Based on the findings of this investigation, the report gives a mechanism of electronically controlling the steering system depending on the variable pressure applied on it. This enhances the controlling and smoothens the operation of steering mechanism.

A comparison of active vibration control techniques - Output feedback vs optimal control

1987 ◽  
Author(s):  
ZORAN MARTINOVIC ◽  
RAPHAEL HAFTKA ◽  
WILLIAM HALLAUER, JR. ◽  
GEORGE SCHAMEL, II
Keyword(s):  
Optimal Control ◽  
Vibration Control ◽  
Output Feedback ◽  
Active Vibration Control ◽  
Control Techniques ◽  
Active Vibration
Sign in / Sign up

Export Citation Format

Share Document