The Scientific Bulletin of Electrical Engineering Faculty
Nowadays, Small quadcopters have made significant advancements in recent years, thanks to the dev... more Nowadays, Small quadcopters have made significant advancements in recent years, thanks to the development of control systems, the availability of sensors, and affordable and reliable materials for their production. Additionally, programs have been developed to model and analyze these aircraft before production. The professional applications of quadcopters are seemingly endless due to their many advantages. The aim of this research is to build a quadcopter and test its stability utilizing Arduino Mega, IMU sensor (Inertial Measurement Unit) and MPU-6050 in LabVIEW environment. The objective is to select the suitable PID parameters and create a remote-control program that can be operated using a smartphone and RemoteXY app on Android OS.
2016 International Conference on System Reliability and Science (ICSRS), 2016
Active power filters are used to improve the energy quality of the electrical distribution networ... more Active power filters are used to improve the energy quality of the electrical distribution networks by the harmonic elimination and correcting of the power factor. However, many conventional configurations of active filters are constituted by a significant number of semiconductors that generate a crowded installation with a complicated control, high cost price of his designs and power losses due to switching of semiconductors. For these reasons, the innovation of these configurations is required. This article, presents a proposed structure of multilevel active power filter auto-rectifies with a reduced number of switches. It is controlled by an easy flowchart permitting a functioning fast and efficient to eliminate the named problems of traditional structures. The use of this structure also reduces to half the number of DC bus capacities of its supply. Conventional systems such as seven levels inverter NPC-type require twelve power switches, six capacities of DC bus and diodes of neutral point clamped. The proposed model retained its ability to produce the same seven levels of voltage with only a small number of eight bipolar switches, three capacities of DC bus and none diode used for the neutral point clamped. The simulation results illustrate an important reduction in THD of current supply from 25.35% to 1.82%, that's less significant than the value conform to IEEE standards of 5% with a good compensation of reactive power.
2016 International Conference on System Reliability and Science (ICSRS), 2016
Every machine has mechanical moving parts in recent generate internal stresses in its structure. ... more Every machine has mechanical moving parts in recent generate internal stresses in its structure. These efforts are manifested by the vibration of the whole structure of the machine. For the collection of data necessary to analyze the origin of these efforts are often used vibration sensors, whose function is to transform mechanical energy into a proportionate and measurable electrical signal. In the present work, we limited our study to the search for the best position of the sensor and the measurement point of taking a significant vibration. For this, we considered nine measurements points regularly distributed over half the circumference (180°) of the driving motor of a motor-fan group mounted on flexible substrates, so measurement points that have a pitch equal to 22,5°. In this installation, we have identified three zones; A, B, and C there is seen that amortization is only provided and limited by zone B. The measurements made, have led us to confirm that the measurements points to this type group of motor-fan, will be performed on the horizontal plane and loins of the amortized zone B. In addition, we have taken for this analysis both measurement, one without unbalance and another with the presence of unbalance. In the end, the FFT calculation under Matlab software of the time signal data delevred by the sensor to an oscilloscope is used.
Electricity distribution managers are continuously under pressure to expand their grids to cope w... more Electricity distribution managers are continuously under pressure to expand their grids to cope with load growth and properly supply their consumers. To achieve these objectives, it is necessary to provide an acceptable climate for the entry of solar resources and innovative operating practices. This work focuses on a study the impact of the insertion of photovoltaic energy into the low voltage distribution grid. We have shown the impact of weather conditions on the power injected into the grid, the impact of using a single-phase inverter with a TT-neutral regime, the flow of active and reactive bidirectional power to the point of common coupling PCC, and the impact of a grid connected photovoltaic system under different weather conditions and load types. This study was carried out using the Matlab Simulink environment for modeling and simulation of a single-phase system with a 3,5kW transformer inverter and the results show the impact of PV system integration on the overall and ind...
Quadrotors, a type of unmanned aerial vehicle, utilize four rotors for precise lift and control, ... more Quadrotors, a type of unmanned aerial vehicle, utilize four rotors for precise lift and control, making them highly versatile for a variety of tasks, such as delivery, inspection, mapping, and monitoring. The growing importance of quadcopters is due to their ability to perform a variety of tasks, such as mapping, inspection, surveillance, and delivery. However, their design and four motors make them inherently unstable and difficult to control, which can limit their potential. To improve stability, four controllers (Proportional Derivative, Proportional Integral Derivative, Linear Quadratic Regulator, and Linear Quadratic Regulator-Proportional Derivative) were tested on a quadcopter Simulink model created with MATLAB/SIMULINK. Simulation results showed that the Linear Quadratic Regulator-Proportional Derivative controller was the most effective in terms of stabilization and speed, particularly for hovering along the x and y axes. This controller was found to be reliable and efficie...
Consumption of raw materials has steadily increased. Rich countries explore several raw materials... more Consumption of raw materials has steadily increased. Rich countries explore several raw materials such as phosphate, ore and copper. For this, exploitations must be large, highly mechanized and produce in large quantities to be profitable. Also, the use of drilling means requires good productivity on the one hand and a long service life on the other hand. The satisfaction of these requirements is possible if the drilling method chosen is suitable for the geological and mining conditions as well as the drilling parameters. The choice of the machine therefore has a direct impact on costs and results. The aim of this work is to ensure a proper exploitation with an optimum energy calculation for a drill hammer-blow taking into account their economic or technical conception characteristics. To find out the energy losses of a hammer blow, the Baron and Ghrainer formula which, has been applied, allows us to calculate the drilling speed and to deduce the blow energy. Then, to calculate the ...
The use of more and more electronic power switches with a nonlinear behavior generates non-sinuso... more The use of more and more electronic power switches with a nonlinear behavior generates non-sinusoidal currents in distribution networks, which causes damage to domestic and industrial equipment. The multi-level shunt power active filter is subsequently shown to be an adequate solution to the problem raised. Nevertheless, the difficulty of adjusting the active filter DC supply voltage requires another technology to ensure it. In this article, a photovoltaic generator is associated with the DC bus power terminals of the active filter. The proposed system consists of a field of solar panels, three multi-level voltage inverters connected to the power grid and a non-linear load consisting of a six-diode rectifier bridge supplying a resistive-inductive load. Current control techniques of active and reactive power are used to compensate for both harmonic currents and reactive power as well as to inject active solar power into the distribution network. An algorithm of the search method of t...
International Journal of Power Electronics and Drive Systems (IJPEDS), 2015
Shunt active power filter based on multilevel inverter is used to compensate the power factor and... more Shunt active power filter based on multilevel inverter is used to compensate the power factor and to delete the harmonics. This one permits to reduce the inverse voltages applied to the filter switches and their switching frequencies. Nevertheless, the high number of used switches requires a complicated controller and increases the switching losses; where the necessity of finding another resolution system. In this work a new topology of multilevel inverter is proposed as a shunt active power filter using two IGBT transistors in series of opposite sense meticulously controlled by a parallel control algorithm, with the concept of reduced number of six switches which are able to create five levels of the output voltage. This system substute the classical system of eight switches. The harmonic currents identification is carried out using the instantaneous active and reactive power method. The simulation is performed using Matlab/Simulink. The obtained results show that the filtering per...
International Review on Modelling and Simulations (IREMOS), 2015
ABSTRACT Multilevel shunt active power filters are used to suppress the harmonics and make the po... more ABSTRACT Multilevel shunt active power filters are used to suppress the harmonics and make the power factor nearer to unity. That’s also, allows reducing the inverse voltages applied to the filter switches. But, the elevated number of the switches requires a difficult control and increases the switching losses; where the innovations of these systems are necessary. In this paper a novel five-level inverter is presented as a shunt active power filter to eliminate these anomalies. The deployment of this topology limits the stress in inverse voltage supported by switches via dividing the continue voltage bus DC. However, it is composed of a small number of six bipolar switches able to generate five levels of the output voltage. The simulation is performed using a new algorithm through the P-Q developed theory for harmonic currents identification in Matlab/Simulink. The obtained results show that the filtering performances are well improved.
The Scientific Bulletin of Electrical Engineering Faculty
Nowadays, Small quadcopters have made significant advancements in recent years, thanks to the dev... more Nowadays, Small quadcopters have made significant advancements in recent years, thanks to the development of control systems, the availability of sensors, and affordable and reliable materials for their production. Additionally, programs have been developed to model and analyze these aircraft before production. The professional applications of quadcopters are seemingly endless due to their many advantages. The aim of this research is to build a quadcopter and test its stability utilizing Arduino Mega, IMU sensor (Inertial Measurement Unit) and MPU-6050 in LabVIEW environment. The objective is to select the suitable PID parameters and create a remote-control program that can be operated using a smartphone and RemoteXY app on Android OS.
2016 International Conference on System Reliability and Science (ICSRS), 2016
Active power filters are used to improve the energy quality of the electrical distribution networ... more Active power filters are used to improve the energy quality of the electrical distribution networks by the harmonic elimination and correcting of the power factor. However, many conventional configurations of active filters are constituted by a significant number of semiconductors that generate a crowded installation with a complicated control, high cost price of his designs and power losses due to switching of semiconductors. For these reasons, the innovation of these configurations is required. This article, presents a proposed structure of multilevel active power filter auto-rectifies with a reduced number of switches. It is controlled by an easy flowchart permitting a functioning fast and efficient to eliminate the named problems of traditional structures. The use of this structure also reduces to half the number of DC bus capacities of its supply. Conventional systems such as seven levels inverter NPC-type require twelve power switches, six capacities of DC bus and diodes of neutral point clamped. The proposed model retained its ability to produce the same seven levels of voltage with only a small number of eight bipolar switches, three capacities of DC bus and none diode used for the neutral point clamped. The simulation results illustrate an important reduction in THD of current supply from 25.35% to 1.82%, that's less significant than the value conform to IEEE standards of 5% with a good compensation of reactive power.
2016 International Conference on System Reliability and Science (ICSRS), 2016
Every machine has mechanical moving parts in recent generate internal stresses in its structure. ... more Every machine has mechanical moving parts in recent generate internal stresses in its structure. These efforts are manifested by the vibration of the whole structure of the machine. For the collection of data necessary to analyze the origin of these efforts are often used vibration sensors, whose function is to transform mechanical energy into a proportionate and measurable electrical signal. In the present work, we limited our study to the search for the best position of the sensor and the measurement point of taking a significant vibration. For this, we considered nine measurements points regularly distributed over half the circumference (180°) of the driving motor of a motor-fan group mounted on flexible substrates, so measurement points that have a pitch equal to 22,5°. In this installation, we have identified three zones; A, B, and C there is seen that amortization is only provided and limited by zone B. The measurements made, have led us to confirm that the measurements points to this type group of motor-fan, will be performed on the horizontal plane and loins of the amortized zone B. In addition, we have taken for this analysis both measurement, one without unbalance and another with the presence of unbalance. In the end, the FFT calculation under Matlab software of the time signal data delevred by the sensor to an oscilloscope is used.
Electricity distribution managers are continuously under pressure to expand their grids to cope w... more Electricity distribution managers are continuously under pressure to expand their grids to cope with load growth and properly supply their consumers. To achieve these objectives, it is necessary to provide an acceptable climate for the entry of solar resources and innovative operating practices. This work focuses on a study the impact of the insertion of photovoltaic energy into the low voltage distribution grid. We have shown the impact of weather conditions on the power injected into the grid, the impact of using a single-phase inverter with a TT-neutral regime, the flow of active and reactive bidirectional power to the point of common coupling PCC, and the impact of a grid connected photovoltaic system under different weather conditions and load types. This study was carried out using the Matlab Simulink environment for modeling and simulation of a single-phase system with a 3,5kW transformer inverter and the results show the impact of PV system integration on the overall and ind...
Quadrotors, a type of unmanned aerial vehicle, utilize four rotors for precise lift and control, ... more Quadrotors, a type of unmanned aerial vehicle, utilize four rotors for precise lift and control, making them highly versatile for a variety of tasks, such as delivery, inspection, mapping, and monitoring. The growing importance of quadcopters is due to their ability to perform a variety of tasks, such as mapping, inspection, surveillance, and delivery. However, their design and four motors make them inherently unstable and difficult to control, which can limit their potential. To improve stability, four controllers (Proportional Derivative, Proportional Integral Derivative, Linear Quadratic Regulator, and Linear Quadratic Regulator-Proportional Derivative) were tested on a quadcopter Simulink model created with MATLAB/SIMULINK. Simulation results showed that the Linear Quadratic Regulator-Proportional Derivative controller was the most effective in terms of stabilization and speed, particularly for hovering along the x and y axes. This controller was found to be reliable and efficie...
Consumption of raw materials has steadily increased. Rich countries explore several raw materials... more Consumption of raw materials has steadily increased. Rich countries explore several raw materials such as phosphate, ore and copper. For this, exploitations must be large, highly mechanized and produce in large quantities to be profitable. Also, the use of drilling means requires good productivity on the one hand and a long service life on the other hand. The satisfaction of these requirements is possible if the drilling method chosen is suitable for the geological and mining conditions as well as the drilling parameters. The choice of the machine therefore has a direct impact on costs and results. The aim of this work is to ensure a proper exploitation with an optimum energy calculation for a drill hammer-blow taking into account their economic or technical conception characteristics. To find out the energy losses of a hammer blow, the Baron and Ghrainer formula which, has been applied, allows us to calculate the drilling speed and to deduce the blow energy. Then, to calculate the ...
The use of more and more electronic power switches with a nonlinear behavior generates non-sinuso... more The use of more and more electronic power switches with a nonlinear behavior generates non-sinusoidal currents in distribution networks, which causes damage to domestic and industrial equipment. The multi-level shunt power active filter is subsequently shown to be an adequate solution to the problem raised. Nevertheless, the difficulty of adjusting the active filter DC supply voltage requires another technology to ensure it. In this article, a photovoltaic generator is associated with the DC bus power terminals of the active filter. The proposed system consists of a field of solar panels, three multi-level voltage inverters connected to the power grid and a non-linear load consisting of a six-diode rectifier bridge supplying a resistive-inductive load. Current control techniques of active and reactive power are used to compensate for both harmonic currents and reactive power as well as to inject active solar power into the distribution network. An algorithm of the search method of t...
International Journal of Power Electronics and Drive Systems (IJPEDS), 2015
Shunt active power filter based on multilevel inverter is used to compensate the power factor and... more Shunt active power filter based on multilevel inverter is used to compensate the power factor and to delete the harmonics. This one permits to reduce the inverse voltages applied to the filter switches and their switching frequencies. Nevertheless, the high number of used switches requires a complicated controller and increases the switching losses; where the necessity of finding another resolution system. In this work a new topology of multilevel inverter is proposed as a shunt active power filter using two IGBT transistors in series of opposite sense meticulously controlled by a parallel control algorithm, with the concept of reduced number of six switches which are able to create five levels of the output voltage. This system substute the classical system of eight switches. The harmonic currents identification is carried out using the instantaneous active and reactive power method. The simulation is performed using Matlab/Simulink. The obtained results show that the filtering per...
International Review on Modelling and Simulations (IREMOS), 2015
ABSTRACT Multilevel shunt active power filters are used to suppress the harmonics and make the po... more ABSTRACT Multilevel shunt active power filters are used to suppress the harmonics and make the power factor nearer to unity. That’s also, allows reducing the inverse voltages applied to the filter switches. But, the elevated number of the switches requires a difficult control and increases the switching losses; where the innovations of these systems are necessary. In this paper a novel five-level inverter is presented as a shunt active power filter to eliminate these anomalies. The deployment of this topology limits the stress in inverse voltage supported by switches via dividing the continue voltage bus DC. However, it is composed of a small number of six bipolar switches able to generate five levels of the output voltage. The simulation is performed using a new algorithm through the P-Q developed theory for harmonic currents identification in Matlab/Simulink. The obtained results show that the filtering performances are well improved.
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