12 research outputs found
Proceedings of the 18th Irish Conference on Artificial Intelligence and Cognitive Science
These proceedings contain the papers that were accepted for publication at AICS-2007, the 18th Annual Conference on Artificial Intelligence and Cognitive Science, which was held in the Technological University Dublin; Dublin, Ireland; on the 29th to the 31st August 2007. AICS is the annual conference of the Artificial Intelligence Association of Ireland (AIAI)
A Review of Resonant Converter Control Techniques and The Performances
paper first discusses each control technique and then gives experimental results and/or performance to highlights their merits. The resonant converter used as a case study is not specified to just single topology instead it used few topologies such as series-parallel resonant converter (SPRC), LCC resonant converter and parallel resonant converter (PRC). On the other hand, the control techniques presented in this paper are self-sustained phase shift modulation (SSPSM) control, self-oscillating power factor
control, magnetic control and the H-∞ robust control technique
International Navigation Market
Economic record of human society in the last period has involved an unprecedented growth of world trade, trafficking of basic raw materials needed for industry and agriculture, and trade in industrial products or food. To the huge volume of movement of goods, shipping takes back the role of first order both quantitatively as well as efficiency. This situation is encouraged by factors
such as diversification of trade, number of participants in this process and the increasingly complex international trade
A COMPARISON BETWEEN MOTIVATIONS AND PERSONALITY TRAITS IN RELIGIOUS TOURISTS AND CRUISE SHIP TOURISTS
The purpose of this paper is to analyze the motivations and the personality traits that characterize tourists who
choose religious travels versus cruises. Participating in the research were 683 Italian tourists (345 males and 338
females, age range 18–63 years); 483 who went to a pilgrimage travel and 200 who chose a cruise ship in the
Mediterranean Sea. Both groups of tourists completed the Travel Motivation Scale and the Big Five
Questionnaire. Results show that different motivations and personality traits characterize the different types of
tourists and, further, that motivations for traveling are predicted by specific —some similar, other divergent—
personality trait
State-Feedback Controller Based on Pole Placement Technique for Inverted Pendulum System
This paper presents a state space control technique for inverted pendulum system using simulation and real experiment via MATLAB/SIMULINK software. The inverted pendulum is difficult system to control in the field of control engineering. It is also one of the most important classical control system problems because of its nonlinear characteristics and unstable system. It has three main problems that always appear in control application which are nonlinear system, unstable and non-minimumbehavior
phase system. This project will apply state feedback controller based on pole placement technique which is capable in stabilizing the practical based inverted pendulum at vertical position. Desired design specifications which are 4 seconds settling time and 5 % overshoot is needed to apply in full state feedback controller based on pole placement technique. First of all, the mathematical model of an inverted pendulum system is derived to obtain the state space representation of the system. Then, the design phase of the State-Feedback Controller can be conducted after linearization technique is
performed to the nonlinear equation with the aid of mathematical aided software such as Mathcad. After that, the design is simulated using MATLAB/Simulink software. The controller design of the inverted pendulum system is verified using simulation and experiment test. Finally the controller design is compared with PID controller for benchmarking purpose
A SIMULATION STUDY OF STATE-FEEDBACK CONTROL METHOD FOR ELECTRO HYDRAULIC SERVO MODEL
Electro hydraulic servo system is used by many industries due to its ability to impart large forces.
It also has advantage in term of fast response and robustness. The electro hydraulic system suffered
from errors of the transient response which are steady state error, settling time and the ripples. It
is crucial to design a controller for the system to ensure the reliability of the system. Aiming at the
characteristic of the system, steady state feedback control method is designed to compensate the
error. The analysis of the system is done based on the transient response specifically on the actuator
part. MATLAB Simulink is used as the simulation software to evaluate the force performance of
state feedback controller method. The steady state error, settling time and ripple are observed and
recorded for each controller. Three methods is applied, which are full feedback, state feedback with
feed forward and integral control are compared with proportional, integral and derivatives (PID)
controller. The result of each controller shows the differences performance. Based on the simulation
results, the feedforward technique is found to be the best control technique for the electro hydraulic
servo system due to the requirement performance such as percent overshoot, settling time, rise time
and zero steady state error. This good result will directly benefit industries that use electro hydraulic
system as their actuator for production machines