Abdelwahab Hassan

Tanta University · Department of Electrical Power and Machines Engineering

This paper presents a control method for a system composed of a photovoltaic (PV) array, five-phase impedance source inverter, five-phase induction motor and centrifugal pump. This method is based on controlling the motor speed to control the pump power as the inso-lation level or temperature change to attain the maximum power extraction from the P...

EVs sufer from short driving range because of limited capacity of the battery. An advantage of EVs over internal-combustion vehicles is the ability of regenerative braking (RB). By this advantage, EVs can develop energy by RB which can be stored in the battery for later use to increase the driving range of EVs. Tere are diferent motors that can be...

This paper presents a control method for a system composed of a photovoltaic (PV) array, five-phase impedance source inverter, five-phase induction motor and centrifugal pump. This method is based on controlling the motor speed to control the pump power as the insolation level or temperature change to attain the maximum power extraction from the PV...

To supply resident loads far from the grid, a stand-alone wind system with a small-scale wind turbine and battery storage can be used. The traditional configuration of the system has a permanent-magnet synchronous generator (PMSG). Other alternative configurations use doubly fed induction generator (DFIG). The systems with DFIG have variable speed...

This research work explains a sliding mode controller-based multilevel inverter for grid integrated photovoltaic (PV) power structure. A gravitational search algorithm (GSA) based on maximum power point tracking (MPPT) has also been discussed for optimal PV power achievement. Moreover, a two-stage cascaded interleaved boost converter has been emplo...

A field-orientation scheme is a typical control technique of induction motors to obtain sophisticated performance. The stator field-oriented control is less sensitive to parameter variations than the rotor field-oriented control. In addition, the estimation of the stator flux is more accurate than that of the rotor flux. Therefore, the stator flux...

This paper aims at minimizing the torque ripples using variable switching frequency technique of PWM (VSFPWM) of the surface-mounted permanent magnet synchronous motor (SPMSM) for a high-performance operation of a motor-generator set. The proposed system was employed to drive the promising brushless doubly-fed reluctance generator (BDFRG) with a se...

In this paper, the marine predator algorithm (MPA) is proposed for solving transcendental nonlinear equations in a selective harmonic elimination technique using a multilevel inverter (MLI). It proved its suitability and supremacy over the other selective harmonic (SHE) techniques used in recent research as it has good precision, high probability o...

This chapter aims at proposing a complete mathematical analysis and derivation of the small signal model for voltage‐source inverter (VSI) with surface‐mounted PMSM (SPMSM). The basic equations of the SPMSM model were developed and simulated using MATLAB/SIMULINK environment. In addition, the switch state functions were used to express the motor ph...

This paper investigates the application of multilevel inverter as STATCOM to compensate the reactive power for railways power grid. The analysis of reactive power compensation on the voltage profile of real railway power grid presents a main guide for sizing the STATCOM compensator. In the paper, the concept and design details of the multilevel inv...

The programmable pulse width modulation is gaining wider acceptance in the field of power inverter switching because of lower processing requirements. It allows the switching at pre-calculated values rather carrier comparison process. That facilitates adding fruitful modifications to the generated voltage. This study presents the analysis of applyi...

This paper investigates the utilization of Multilevel Inverter (MLI) to reduce the harmonics of grid-connected photovoltaic (PV) system. MLIs act as a promising interface in medium voltage networks for many usages because their modularity and lower voltage stress towards the switches. In addition, they provide a high-form output with low symmetric...

With DC grids, the usage of PMSG becomes more feasible due to the saving of inverter stage. However, integration of PMSG with DC grids faces some technical problems. The most critical problem is voltage stabilization. Any sudden change in wind power is suddenly reflected on the output voltage and power. So, this paper aims to use Superconducting Ma...

This paper presents a simplified sinusoidal pulse width modulation (SSPWM) proposed to control a half-bridge multilevel inverter. This topology has less number of switching components compared to conventional types of multilevel inverter. It can be supplied from separated dc sources or renewable energy sources like solar energy via photovoltaic mod...

Multilevel inverters become widely used in many industrial applications when minimum harmonic contents and high power are needed. This paper presents an inverter topology with reduced number of switches and provides a higher number of output levels. This topology is known as cascaded half-bridge based multilevel DC link inverter. The inverter consi...

This paper presents a multilevel inverter topology with reduced number of switches compared to conventional types of multilevel inverter. This type can be supplied from photovoltaic modules which provide the inverter with dc power. The adopted inverter consists of series connected units; each unit is fed from a separate dc source which has a magnit...

In this paper, a new topology of multi-level inverter with minimum number of switching components is adopted. This topology provides a higher number of output voltage levels with lower switching components compared to conventional multilevel inverters. This is achieved throughout the unsymmetrical choice of D.C sources magnitudes. This topology con...

Five-phase induction motor drive systems have gained much popularity due to the numerous advantages that they offer when compared to their three-phase counterparts. In principle, the supply to five-phase drive system is given from five-phase voltage source inverter (VSI). In this paper, a fault-tolerant control strategy for five-phase VSIs has been...

Abstract – As poly-phase motor drive system is become more popular and practical leads to its advantages. This paper proposes a five-phase induction motor (IM) drive system fed from five-phase matrix converter (MC) with three-phase grid input. The modulation strategy of this converter is based on indirect space vector modulation (ISVM). The analysi...