2015 4th International Conference on Electrical Engineering (ICEE)

This paper presents a study of different cost functions as well as different topologies of the optimizer that is PSO in order to reach an optimum PID for the AVR system. The obtained PID parameters strongly depend on the selected cost function and the ability of the optimizer to explore well the search space. Once the cost function and the optimizer parameters are set, the metaheuristic method can... View full abstract»

Direct Torque Control is a control technique in AC drive systems to obtain high performance torque control. The conventional DTC utilizing hysteresis comparators suffers from high torque ripples and variable switching frequency. The most common solution to those problems is to use the space vector modulation. In this paper a modified direct torque control of induction motor scheme is presented. Th... View full abstract»

In this paper, we grouped a two solutions when a fault occur in the traction machine to keeps stable performance in the case of one or more faults in the phases for double wheeled hybrid electric vehicle (HEV). The results showed that installing the proposed strategies a and operating together can keep stability in case of fault in traction machines. View full abstract»

In FC/UC HEV, an adequate power management approach is one essential objective of the researches in this area. In this paper, an advanced control strategy managing the power distribution among the two energy sources is elaborated using state-flow bloc of Matlab/Simulink. For the FC power demand, an algorithm with filtering power vibrations is developed. This algorithm, depending on the UC state of... View full abstract»

Energy management based on classical PI controllers (CPIC) has been proposed in this paper. To improve the dynamics and power density of fuel-cell systems, hybridization of fuel cells with energy storage devices such as ultra-capacitors (UC) is required. The approach proposed in is used in this paper where the UC SOC is controlled through the penalty coefficient of the UC energy. This strategy is ... View full abstract»

In this paper, we present the design of a new type of fuzzy controllers to enhance the transient stability and achieve voltage regulation of multimachine power system subject to persistent disturbance by incorporating sliding mode control theory with fuzzy control technology. First, a fuzzy model of the given nonlinear system is constructed to represent the local dynamic behaviors of the given non... View full abstract»

Since a long time, image mosaicing technique was involved in different domains; in order to have much more information about a scene than the individual views of that scene. The basic idea of this technique is to match features between two overlapped images; in order to find a suitable transformation model (Homography matrix), which allows warping images into a single and common reference frame. D... View full abstract»

In this paper, a novel method is proposed for robust fault diagnosis (FD) within a fault tolerant control (FTC) strategy of actuator failures for a DFIG-based wind turbines (WT). Actuator failures are detected and compensated using a FTC scheme based Proportional Integral Observer (PIO) to allow normal operation of the DFIG. Indeed, estimation error dynamics stability is treated with the Lyapunov ... View full abstract»

DC-DC converters are widely used as reliable power source for many industrial and military applications, computers and electronic devices. Several control methods were developed for DCDC converters control mostly with asymptotic convergence. Sliding mode, synergetic control are a proven robust controllers approach and will be used here in a so called terminal scheme to achieve finite time converge... View full abstract»

This paper describes the technology-independent approach for FPGA (Field-programmable gate array) and ASIC (Application Specific Integrated Circuit) implementations. This approach is based on the reuse of portable building blocks described at RTL level, thus the design can be mapped to an ASIC or an FPGA devices with few RTL code changes when migrating between FPGA and ASIC. As case study, an Open... View full abstract»

Improving a reliability of electrified railway operation system requires protection against overvoltage, particularly those of atmospheric origin. The most serious threat to the traction system is lightning when it strike the mast or conductors. to protect a system from this phenomenon, the ZnO arrester are used. In the present investigation the system under study is developed and each element is ... View full abstract»

This paper presents the design of an adaptive neural kinematic controller, to guide a nonholonomic wheeled mobile robot throughout a predefined path. The ADAptive LINEar (ADALINE) neural network has been used to implement the controller. The Widrow-Hoff algorithm has been used to train the adaptive neural network, first offline and then online, in order to calculate the required control signals to... View full abstract»

With the development of various services through the Web and especially with the emergence of electronic commerce, all suppliers of products and services are providing considerable efforts to secure against all possible fraudulent intrusions. It appears that biometrics is the only method that can satisfy the requirements of remote identity in terms of relevance and reliability. In this paper, we p... View full abstract»

This study focuses on the identification and quantification of gaseous emissions from a gas as plant at HassiR'Mel Telghimet continuous operation of a part. To study the influence of electrode geometry of a reactor crown, the distribution of the electric field and potential in an air gap and configurations for point-plane and wire cylinder, for a possible choice and design of a reactor electrostat... View full abstract»

This paper presents a safe and economic grounding system design for the substation of Ain El-Melh located in M'Sila city (Algeria) using genetic algorithm optimization (GAO). The main objective is to minimize the cost function of the considered grounding system in accordance with the security restrictions required by the ANSI/IEEE Std. 80-2000. A new mathematical model has been proposed for the co... View full abstract»

As a main limitation in the state and parameters estimation using Extended Kalman Filter (EKF) is that its optimality is critically dependent on the choice of the right covariance matrices of state and measurement noise. In order to overcome this difficulty, a new approach based on the use of the tuned EKF to estimate simultaneously the speed and rotor flux of an induction motor drive is proposed.... View full abstract»

Planar magnetic components used for energy conversion is crucial elements in power conversion application. Particularly, planar transformer printed on circuit board is characterized by the high efficiency, high power density, low weight and small size. Therefore, designed power conversion systems are needs prototype. But, planar transformer model is still not available in power simulator tools. Th... View full abstract»

In this paper Neuro-Fuzzy control for doubly fed induction generator (DFIG) based Direct power control with a fixed switching frequency is proposed for wind generation application using MPPT strategy. First, a mathematical model of the doubly-fed induction generator written in an appropriate d-q reference frame. In order to control the DFIG, active and reactive power controllers and space-vector m... View full abstract»

Advanced Encryption Standard (AES) is a symmetric cryptographic algorithm used for protecting data. Designing efficient hardware architecture for AES with small hardware resource usage is a challenge. AES uses different data transformations and the most expensive one, in terms of computational resources, is the SubBytes transformation which is carried out by a Look-Up-Table (LUT) named the S-box. ... View full abstract»

The backlash is one of the most important nonlinearities that affect the performances of the mechanical manipulators control. When backlash occurs in a system, the stability and the performance can change which produces an inaccuracy or an uncontrollability of the mechanism. In this study, a feedforward control is developed in order to anticipate the disturbing torque transmitted inside the dead z... View full abstract»

This article reports on Erbium Optical Amplifiers (EDFAs) and their use in different positions (booster, in-line and preamplifier) for optical communication systems; in particular improving the reach up 40 km of hybrid Passive Optical Networks (WDM/TDM-PON) with 512 users. Moreover in this paper, was study different characterizations of EDFA amplifier, which depend essentially on erbium ion (Er<... View full abstract»

This work presents a digital simulation of an operation of a small electric vehicle. The traction chain consists of a battery, a bidirectional DC-DC converter and DC motor. The vehicle dynamics which represents the load torque applied on the motor shaft is taken into account. The two modes of operation; motor and regenerative braking mode are explained and the simulation model can simulate the two... View full abstract»