Browsing by Author "Ben-Brahim, Lazhar"
Now showing items 21-39 of 39
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A new angle determination method for resolvers
Ben-Brahim, Lazhar; Benammar, Mohieddine; Alhamadi, Mohd; Al-Emadi, Nasser; Al-Hitmi, Mohammed ( IEEE , 2008 , Conference Paper)A new low cost method for converting the amplitudes of the sine/cosine signals generated by the resolver into a measure of the angle of its shaft. The new method operates without lookup tables (LUT), and takes advantage ... -
A new iterative learning control method for PWM inverter current regulation
Ben-Brahim, Lazhar; Benammar, Mohieddine; Alhamadi, Mohd A. ( IEEE , 2003 , Conference Paper)AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. PWM inverters output waveforms ... -
A New Non-Isolated High-Gain Single-Switch DC–DC Converter Topology with a Continuous Input Current
Gholizadeh, Hossein; Ben-Brahim, Lazhar ( MDPI , 2022 , Article)An ultra-high step-up, non-isolated DC–DC converter with a continuous input current was developed as a result of this research. This converter’s architecture consists of a voltage multiplier cell (VMC), a positive output ... -
A new PLL method for resolvers
Ben-Brahim, Lazhar; Benammar, Mohieddine ( IEEE , 2010 , Conference Paper)This paper describes a novel implementation of the classical PLL closed loop method without using VCO, DAC, counter and look-up tables. The proposed method makes use of the excitation signal of the resolver to estimate the ... -
A novel control scheme for three-phase seven-level packed U-Cell based DSTATCOM
Hassan Abdullah, Khalid; Al-Emadi, Nasser Ahmed; Ben-Brahim, Lazhar; Gastli, Adel; Cecati, Carlo ( Elsevier , 2020 , Article)With the advent of SiC devices, the packed U-Cell converter has become a promising topology among the multilevel converters for medium voltage DSTATCOM application. It utilizes fewer components while achieving the maximum ... -
A novel converter for sinusoidal encoders
Benammar, Mohieddine; Ben-brahim, Lazhar; Alhamadi, Mohd A.; El-Naimi, Mohamed ( IEEE , 2006 , Conference Paper)The paper presents a novel and low cost method for determining the angle from sine and cosine signals generated by angular position sensors such as resolvers and sinusoidal encoders. The proposed scheme is based upon the ... -
A novel method for estimating the angle from analog co-sinusoidal quadrature signals
Benammar, Mohieddine; Ben-brahim, Lazhar; Alhamadi, Mohd A.; Al-Naemi, Mohamed ( Elsevier , 2008 , Article)The paper presents a new low cost and accurate method for determining the angle from sine and cosine signals produced by resolvers and sinusoidal encoders. In the proposed scheme, multiple phase-shifted sinusoids (PSS) are ... -
A novel model predictive control with an integrated SOC and floating DC-link voltage balancing for 3-phase 7-level PUC converter-based MV BESS
Hassan Abdullah, Khalid; Al-Emadi, Nasser Ahmed; Ben-Brahim, Lazhar; Gastli, Adel; Cecati, Carlo ( Elsevier , 2021 , Article)Compared to conventional multilevel topologies, the Packed U-Cell multilevel topology utilizes the minimum number of components and provides both maximum voltage levels and high reliability. When used in a battery energy ... -
A novel multilevel carrier-based PWM-control method for GTO inverter in low index modulation region
Ben-Brahim, Lazhar; Tadakuma, Susumu ( IEEE , 2006 , Article)Gate turn offs (GTOs) have an inherent minimum ON-OFF time, which is needed for their safe operation. For GTO-based three-level or neutral-point-clamped (NPC) inverters, this minimum ON-OFF pulsewidth limitation results ... -
A Novel Resolver-to-360° Linearized Converter
Benammar, Mohieddine; Ben-Brahim, Lazhar; Alhamadi, Mohd A. ( IEEE , 2004 , Article)A novel and simple resolver-to-dc converter is presented. It is shown that by appropriate processing of the sine and cosine resolver signals, the proposed converter may produce an output voltage proportional to the shaft ... -
Optimal Placement of Phasor Measurement Units for Power Systems Using Genetic Algorithm
Mahgoub, Mohamed Osama (2017 , Master Thesis)Power grids require monitoring to operate with high efficiency while minimizing the chances of having a failure. However, current monitoring scheme which consists of SCADA (Supervisory Control and Data Acquisition), ... -
Planning and Optimizing Electric-Vehicle Charging Infrastructure Through System Dynamics
Abdullah, Heba M.; Gastli, Adel; Ben-Brahim, Lazhar; Mohammed, Semira O. ( IEEE , 2022 , Article)One of the key solutions to address the issue of energy efficiency and sustainable mobility is to integrate plug-in electric vehicle (EV) infrastructure and photovoltaic (PV) systems. The research proposes a comprehensive ... -
Real Time Digital Feedback Control for VFD fed by cascaded multi-cell inverter
Ben-Brahim, Lazhar; Trabelsi, Mohamed; Yokoyama, Tomoki; Ino, Takayuki ( IEEE , 2010 , Conference Paper)Multi-cell inverter include an array of single-phase inverters capable of handling higher voltage ratings with lower rating power electronics devices. In this paper, a Real Time Digital Feedback Controller (RTDFBC) combined ... -
Reinforcement Learning Based EV Charging Management Systems-A Review
Abdullah, Heba M.; Gastli, Adel; Ben-Brahim, Lazhar ( IEEE , 2021 , Article)To mitigate global warming and energy shortage, integration of renewable energy generation sources, energy storage systems, and plug-in electric vehicles (PEVs) have been introduced in recent years. The application of ... -
Review of medium voltage high power electric drives
Ben-Brahim, Lazhar; Gastli, Adel; Yoshino, Teruo; Yokoyama, Tomoki; Kawamura, Atsuo ( IEEJ , 2019 , Article)The field of electric drives in general, and medium-voltage high-power drives in particular, has recently experienced considerable progress. Numerous interesting developments have been reported in the literature. Various ... -
Space vector pulse width modulation techniques for a five-phase impedeance source and quazi impedeance source inverters
Abduallah, Ahmad Anad; Iqbal, Atif; Ben-Brahim, Lazhar ( IEEE , 2015 , Conference Paper)Impedance source inverter (ZSI) and its variant quasi impedance source inverter (qZSI) are single stage inverters that transform dc to ac and boost the source voltage at the same time. These topologies have attracted great ... -
Speed control of induction motor without rotational transducers
Ben-Brahim, Lazhar; Tadakuma, Susumu; Akdag, Alper ( IEEE , 1999 , Article)This paper describes a newly developed speed sensorless drive based on neural networks. A backpropagation neural network is used to provide real-time adaptive identification of the motor speed. The estimation objective is ... -
Transformerless Microinverter with Low Leakage Current Circulation and Low Input Capacitance Requirement for PV Applications
Khan, Ahmad Mirdad (2017 , Master Thesis)The inevitable depletion of limited fossil fuels combined with their harmful footprint on the environment led to a global pursuit for alternative energy sources that are clean and inexhaustible. Renewable energies such as ... -
A wavelet-based passive islanding detection technique
Fayyad, Yara; Ben-Brahim, Lazhar ( IEEE , 2012 , Conference Paper)Distribution power systems are radial in nature. Power flows in one direction from the utility to the load. Most protection, monitoring, and control devices are designed based on this unidirectional flow of power. Distributed ...