تصفح حسب المؤلف "Ben-Brahim, L."
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Implementation of iterative learning control based deadtime compensation for PWM inverters
Ben-Brahim, L.; Gastli, A.; Ghazi, Khalid ( IEEE , 2015 , Conference Paper)Deadtime effects in PWM inverters are nonlinear and depend on the switching frequency of the inverters and the types of power devices, snubber circuits, and loads. Several deadtime compensation methods were proposed in the ... -
An improved predictive control approach for Multilevel Inverters
Trabelsi, M.; Ben-Brahim, L.; Gastli, A.; Ghazi, K. A. ( IEEE , 2013 , Conference Paper)This paper proposes a flexible predictive control strategy for flying capacitors based Multi-Level Inverters (MLIs). The proposed controller, applied for a Flying Capacitors Inverter (FCI) and a Modular Multilevel Converter ... -
An improved real-time digital feedback control for grid-tie multilevel inverter
Trabelsi, M.; Ben-Brahim, L.; Ghazi, K. A. ( IEEE , 2013 , Conference Paper)This paper proposes a weighted Real-Time Digital Feedback Control for a grid connected Distributed Generation (DG) system (gas turbines, fuel cells, photovoltaic, wind.). The DG source is connected to the grid through a ... -
An improved SVPWM method for multilevel inverters
Trabelsi, M.; Ben-Brahim, L.; Yokoyama, T.; Kawamura, A.; Kurosawa, R.; Yoshino, T.... more authors ... less authors ( IEEE , 2012 , Conference Paper)This paper proposes a new general Space Vector PWM (SVPWM) method for Multi-Level Inverters (MLI) based on a generalization of dwell-times calculation. The presented scheme is developed for Cascaded H-Bridge (CHB) inverter. ... -
Iterative learning control for variable frequency drives
Ben-Brahim, L. ( IEEE , 2008 , Conference Paper)Variable Frequency Drives (VFD) are subject to various types of disturbances especially cyclical ones. These periodic disturbances are difficult to compensate by conventional controllers. Repetitive control can only ... -
Long-term performance analysis and power prediction of PV technology in the State of Qatar
Touati F.; Chowdhury N.A.; Benhmed K.; San Pedro Gonzales A.J.R.; Al-Hitmi M.A.; Benammar M.; Gastli A.; Ben-Brahim L.... more authors ... less authors ( Elsevier Ltd , 2017 , Article)?Solar photovoltaic (PV) energy in GCC?- the term seems convincing to many solar PV industries due to high solar exposure in GCC region. However, long-term effects such as dust accumulation and seasonal variation are major ... -
Machine-Learning Based Relay Selection in AF Cooperative Networks
Gouissem A.; Samara L.; Hamila R.; Al-Dhahir N.; Ben-Brahim L.; Gastli A.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)With the significant increase of wireless network nodes and traffic load in recent years, especially in the emerging internet-of-things (IoT) and vehicular networks, the design of a fast adaptive relay selection algorithm ... -
Mitigation of voltage imbalance in power distribution system using MPC-controlled packed-U-cells converter
Ahmed I.; Al-Emadi N.; Gastli A.; Ben-Brahim L. ( John Wiley and Sons Ltd , 2019 , Article)Delivering high power quality in single-phase distribution has witnessed more challenges especially with the increased penetration of single-phase distributed generation (DG). This paper proposes a smart solid-state-based ... -
Modeling and control for new LLCL filter based grid-tied PV inverters with active power decoupling and active resonance damping capabilities
Khan A.; Gastli A.; Ben-Brahim L. ( Elsevier Ltd , 2018 , Article)LLCL filters utilization decreases single-phase transformerless inverter's AC-Side volume significantly. Conversely, the inherent 2nd order power harmonic ripples burden inverters' DC-Side. In fact, the passive solution ... -
Multiloop control strategy for grid-interfaced three-phase voltage source inverter with passively damped LLCL-filter
Azani, H.; Massoud, Ahmed; Ben-Brahim, L.; Williams, B.W.; Holliday, D. ( Institution of Engineering and Technology , 2014 , Conference Paper)In inverter-based distributed generation (IBDG) and similar to the conventional third order LCL filter, the high order LLCL filter is difficult to stabilize, and may cause a resonance between the inverter and the grid. ... -
New fast arctangent approximation algorithm for generic real-time embedded applications
Benammar M.; Alassi A.; Gastli A.; Ben-Brahim L.; Touati F. ( MDPI AG , 2019 , Article)Fast and accurate arctangent approximations are used in several contemporary applications, including embedded systems, signal processing, radar, and power systems. Three main approximation techniques are well-established ... -
A New Low Cost Linear Resolver Converter
Ben-Brahim, L.; Benammar, M.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M.A. ( IEEE , 2008 , Article)A new low cost converter topology is proposed for sinusoidal position encoders. The converter enables determination of the angle from the sine and cosine signals of the encoder. When used with resolvers, the implementation ... -
A new normalized Deadbeat control for grid connected distributed generation systems
Trabelsi, M.; Ben-Brahim, L. ( IEEE , 2013 , Conference Paper)This paper proposes a newly designed Real Time Digital Feedback Controller for a grid connected PV system. A multilevel Flying Capacitors Inverter (FCI) along with inductor and step-up transformer is used as an interface ... -
Novel level-shifted PWM technique for cascaded multilevel quasi-impedance source inverter
Rahman, Syed; Meraj, Mohammad; Iqbal, Atif; Ben-Brahim, Lazhar; Abu-Rub, Haitham; Khan, Irfan... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In a multilevel quasi-impedance source inverter (qZSI), phase-shifted carrier pulsewidth modulation (PS-PWM) is the most popular modulation method as it offers advantages such as simple implementation and evenly powered ... -
Novel voltage balancing algorithm for single-phase cascaded multilevel inverter for post-module failure operation in solar photovoltaic applications
Rahman S.; Meraj M.; Iqbal A.; Ben-Brahim L. ( Institution of Engineering and Technology , 2019 , Article)Four cascaded quasi-impedance source inverter (qZSI) modules are required for achieving nine-level output voltage waveform. In case of one module failure, number of levels in output voltage are reduced to seven. This leads ... -
An open-loop technique for angle determination from position encoders
Benammar, M.; Ben-Brahim, L.; Alhamadi, M.A.; Al-Emadi, N.; Al-Hitmi, M. ( IEEE , 2008 , Conference Paper)The paper presents a novel technique for the determination of the angle from low-frequency quadrature cosinusoidal signals produced, for example, by position sensors. In the presented scheme applied to a resolver, the ... -
Optimal energy management scheme for electric vehicle integration in microgrid
Lakshminarayanan, V.; Pramanick, S.; Rajashekara, K.; Ben-Brahim, L.; Gastli, A. ( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Electric vehicles (EV) connected to a charging station in a microgrid system is a potential power source for participation in energy management (EM). However, an autonomous controller scheme is required to schedule the ... -
Optimal PMU placement for large practical systems Qatar grid as an example
Mahgoub M.; Gastli A.; Ben-Brahim L. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Phasor Measurement Unit (PMU) is a measurement devices capable of providing measurements with high accuracy, but due to its high cost it is desired to find the optimal placement for them. This paper tries to address the ... -
An original controller design for a grid connected PV system
Trabelsi, M.; Ghazi, K. A.; Al-Emadi, N.; Ben-Brahim, L. ( IEEE , 2012 , Conference Paper)PV energy generation has been one of the most active research areas in the past decades due to its inexhaustibility and environmental-friendly aspects. However, the great deal is to utilize the solar energy effectively ... -
Performance assessment of L-2LC-L filter (double LC trap)-based grid-connected three-phase voltage source inverter
Azani, H.; Massoud, A.; Ben-Brahim, L.; Williams, B. W.; Holliday, D. ( IEEE , 2018 , Conference Paper)Inverter-Based Distributed Generation (IBDG) units are typically coupled to the grid via three-phase Voltage Source Converters (VSCs). The IBDGs may pollute utility with the injected harmonic currents. In order to meet the ...