khairy_abdelsaid

خيري فتحي عبد السيد سيد

استاذ مساعد -

كلية الهندسة

العنوان: كلية الهندسة جامعة سوهاج

10

إعجاب
2020 | الكلمات المفتاحية
Control and analysis of bidirectional interleaved hybrid converter with coupled inductors for electric vehicle applications
This paper proposes a novel bidirectional interleaved hybrid converter which uses coupled inductors (CIs) for battery electric vehicles (BEVs) in order to optimize the performance of the power train. In this paper, a hybrid converter is proposed and designed to realize the integration of the DC/DC converter, and DC/AC inverter together in the BEVs power train with high performance in ... إقراء المزيد

2019 | الكلمات المفتاحية Doubly-fed induction generator, Wind Energy, Dynamic performance,
Design of State Feedback Current Controller for Fast Synchronization of DFIG in Wind Power Generation Systems
Doubly-fed induction generators (DFIGs) are widely used in wind energy conversion systems. The dynamic features of DFIGs make it important to focus on designing high-performance control schemes. However, the dynamic characteristics of such generators depend on nonlinear parameters, such as stator flux, stator current, and rotor current, which increase the overall system complexity. In addition, the DFIG Wind Energy Conversion ... إقراء المزيد

2019 | الكلمات المفتاحية Humidification–dehumidificatio,
Performance enhancement of a humidification–dehumidification desalination system
The purpose of the present work is to investigate humidification–dehumidification desalination system and to explore the effect of pertinent parameters on the overall performance of the process taking in account the irreversibilities and energy losses. The system has been inspected using first and second laws of thermodynamics, and an optimization of the performance along with design development has been performed ... إقراء المزيد

2019 | الكلمات المفتاحية Wind Energy, wind simulator, Wind Turbines, Dynamic performance,
Dynamic Modeling of Wind Turbines Based on Estimated Wind Speed under Turbulent Conditions
Large-scale wind turbines with a large blade radius rotates under fluctuating conditions depending on the blade position. The wind speed is maximum in the highest point when the blade in the upward position and minimum in the lowest point when the blade in the downward position. The spatial distribution of wind speed, which is known as the wind shear, leads ... إقراء المزيد

2017 | الكلمات المفتاحية DSP-based-Numerical Relay, multifunction protection,
Design and Implementation of a Multifunction DSP-based-Numerical Relay
This paper is aimed at proposing a multifunction numerical relay (MNR) for protection against over-current, over- and under-voltage and over- and under-frequency. The MNR serves also as a directionalrelay. The performance of the MNR is investigated through simulation using MATLAB/Simulink and imple-mentation of a prototype using TMS320F28335 Experimenter Kit. The MNR trips a circuit breaker atabnormal conditions of current, voltage ... إقراء المزيد

2017 | الكلمات المفتاحية wind simulator, Dynamic performance, PMSG-based,
Dynamic performance of wind turbine conversion system using PMSG-based wind simulator
This paper presents an experimental investigation of a small-scale wind turbine conversion system (WTCS), using wind power simulator based on a permanent magnet type synchronous generator (PMSG) which is directly coupled to a servomotor to emulate the WTCS. The wind power simulator is either speed or torque controlled in which propose a “wind shaft”, to verify the dynamic and static ... إقراء المزيد

2017 | الكلمات المفتاحية EV charging station,
Electric Vehicle to Power Grid Integration Using Three-Phase Three-Level AC/DC Converter and PI-Fuzzy Controller
This paper presents the control and simulation of an electric vehicle (EV) charging station using a three-level converter on the grid-side as well as on the EV-side. The charging station control schemes with three-level AC/DC power conversion and a bidirectional DC/DC charging regulator are described. The integration of EVs to the power grid provides an improvement of the grid reliability ... إقراء المزيد

A high-efficiency DC-DC converter with LC resonant in the load-side of HFT and voltage doubler for solar PV systems
This paper presents the implementation of a prototype phase-shift soft-switching full-bridge PWM DC-DC power converter isolated by a highfrequency transformer (HFT). This circuit topology is based on a new concept of series resonant principle in the secondary side. The step-up HFT and the voltage doubler rectifier make this circuit suitable for low-voltage renewable sources such as fuel cell or PV ... إقراء المزيد

2015 | الكلمات المفتاحية Soft-Switching, High Frequency Inverter, induction heating,
Performance of Induction Heating Power Supply Using Dual Control Mode Pulse-width Modulation–Pulsedensity Modulation High-frequency Inverter
This article presents a novel induction heating power supply. The power supply is based on an auxiliary active edge resonant zero-current soft-switching technique. It consists of single-ended push–pull series load resonant inverter. The proposed inverter is cost effective for high-frequency induction heating consumer appliances. The new multi-resonant high-frequency inverter with series load resonance and edge resonance can regulate its high-frequency ... إقراء المزيد

2014 | الكلمات المفتاحية Ripple reduction, PWM inverter, PV system, selected harmonic elimination,
A ripple current minimisation based single phase PWM inverter
This paper is aimed at improving the output voltage waveform of a single phase PWM inverter. Two approaches is proposed, the first approach is based on selected harmonic elimination (SHE) of order up to 7th harmonic, for minimising harmonic distortion and modulating amplitude of the fundamental component of the output voltage waveform. For the first time, the Levenberg–Marquardt algorithm (LMA) ... إقراء المزيد