Papers by Mohamad Tarnini
A Three-Phase Multilevel Inverter Synthesized with 31 Levels and Optimal Gating Angles Based on the GA and GWO to Supply a Three-Phase Induction Motor
Energies, Mar 6, 2024
Compensating voltage waveform distortions using a practical topology of series active power filters
Results in engineering, Mar 1, 2024
A Three-Phase Multilevel Inverter Synthesized with 31-Levels and Op-Timal Gating Angles to Supply Static and Dynamic Loads
Sustainability, May 8, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Sustainability, Jan 3, 2023
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Energies, Jul 31, 2022
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Sustainability
Lebanon has been suffering from severe challenges in its electric sector for decades owing to chr... more Lebanon has been suffering from severe challenges in its electric sector for decades owing to chronic supply shortages and faults in its aging power grid infrastructure. The deplorable situation of the Lebanese electric sector has been made worse by the economic meltdown that started in 2019, which eventually led to total power blackouts across the country. In this paper, we present a case study on the design and implementation of a solar microgrid system for Beirut Arab University, Lebanon. As a first step, simulation software for a microgrid and a distributed generation power system is used to compare different design scenarios. Considering the available installation area and the fact that the greatest demand occurs during the daytime, when both the educational and managerial facilities are running, it is found that a 500-kW photovoltaic system tied to the university’s already present diesel generators is the optimal solution in terms of return on investment. The second step detai...
Sustainability
Power electronic converters are used for integrating renewable energy sources such as wind and ph... more Power electronic converters are used for integrating renewable energy sources such as wind and photovoltaic into the grid. This integration gives rise to many challenges in power systems, especially regarding power quality. Indeed, integrated systems generate a non-linear current full of harmonics, which degrades power quality. Active power filters are usually used to compensate for these harmonics at the point of common coupling. In the control of active power filters, harmonics need to be extracted from the non-linear current. In this paper, the matrix pencil method―a model-based technique for estimating parameters of exponentially damped or undamped sinusoids in noise―is proposed to extract the reference signal in shunt active power filter applications. The performance of the proposed matrix pencil method is studied for current harmonic compensation and power factor correction under different modulation schemes and two DC links: an external DC voltage source and a capacitor. Usin...
Hybrid Active Power Filter Using a Filter-Less Extraction Technique
2022 11th International Conference on Renewable Energy Research and Application (ICRERA)
Energies
Current distortion degrades power quality and affects system performance, especially for sensitiv... more Current distortion degrades power quality and affects system performance, especially for sensitive loads that require pure sinusoidal waves. Owing to its excellent dynamic response, a well-designed active power filter (APF) can achieve a total harmonic distortion (THD) within the acceptable limits defined by IEEE 3002 standards through compensating harmonic distortions. The APF consists of two main modules: a reference signal extraction module and a modulation module. This paper adapts the matrix pencil method, a well-known model-based parameter estimation technique, to the problem of reference extraction. Contrary to conventional time-domain methods such as the synchronous reference frame (SRF) and the reactive power theory (PQ theory) that rely on low-pass filters in their implementations, the proposed method does not use a filter. However, it extracts the reference signal by first decomposing the load current into its constituent frequency components, and then subtracting the pur...
Harmonic filtration by current injection and shunt capacitors technique
2013 3rd International Conference on Electric Power and Energy Conversion Systems, 2013
Simplified series active power filters
2010 IEEE Electrical Power & Energy Conference, 2010
Microcontroller based single phase inverter
2013 13th Mediterranean Microwave Symposium (MMS), 2013
… and Electronics Engineering, 2009. ELECO 2009 …, 2009
This paper explains the behaviors of the new version f the series active power filter based on hi... more This paper explains the behaviors of the new version f the series active power filter based on high input power factor and low input harmonics. The filter is designed to meet the requirements of voltage-current sourced harmonic loads it is based on a load current estimation of the active power filter sensing the load current. The proposed filters can improve the distortion of a small a non-linear loads power. In addition, it can suppress the harmonic current and compensate for the reactive power at the float charge mode. The experimental results verify that the proposed filters have the expected performance [1] [2].
Power and Energy Systems, 2009
This paper contains a new series single phase active power filter based on high input power facto... more This paper contains a new series single phase active power filter based on high input power factor and low input harmonics, it is for electrical power quality purposes. We developed it in order to define new control schemes characterized by simple control algorithms and a reduced number of current transducers. The filter is designed to meet the requirements of voltage-sourced harmonic loads it is based on a load current estimation using a DC capacitor voltage of active power filter sensing the load current. The proposed filter can improve the problems of conventional small and medium non-linear loads like as computers, system of computers, washing machines, faxes, photocopier machines printers…etc and it also can suppress the harmonic current and compensate for the reactive power at the float charge mode. In general, this paper deals with a non-linear loads like as a house loads. The experimental results verify that the proposed filter has the expected performance [1][2].
Harmonic filtration by current injection and shunt capacitors technique
2013 3rd International Conference on Electric Power and Energy Conversion Systems, 2013
Simplified series active power filters
2010 IEEE Electrical Power & Energy Conference, 2010
Microcontroller based single phase inverter
2013 13th Mediterranean Microwave Symposium (MMS), 2013
… and Electronics Engineering, 2009. ELECO 2009 …, 2009
This paper explains the behaviors of the new version f the series active power filter based on hi... more This paper explains the behaviors of the new version f the series active power filter based on high input power factor and low input harmonics. The filter is designed to meet the requirements of voltage-current sourced harmonic loads it is based on a load current estimation of the active power filter sensing the load current. The proposed filters can improve the distortion of a small a non-linear loads power. In addition, it can suppress the harmonic current and compensate for the reactive power at the float charge mode. The experimental results verify that the proposed filters have the expected performance [1] [2].
Power and Energy Systems, 2009
This paper contains a new series single phase active power filter based on high input power facto... more This paper contains a new series single phase active power filter based on high input power factor and low input harmonics, it is for electrical power quality purposes. We developed it in order to define new control schemes characterized by simple control algorithms and a reduced number of current transducers. The filter is designed to meet the requirements of voltage-sourced harmonic loads it is based on a load current estimation using a DC capacitor voltage of active power filter sensing the load current. The proposed filter can improve the problems of conventional small and medium non-linear loads like as computers, system of computers, washing machines, faxes, photocopier machines printers…etc and it also can suppress the harmonic current and compensate for the reactive power at the float charge mode. In general, this paper deals with a non-linear loads like as a house loads. The experimental results verify that the proposed filter has the expected performance [1][2].
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Papers by Mohamad Tarnini