International review of automatic control, Mar 31, 2019
Quadcopter based technology utilizes a hybrid structure that delivers the ultimate services for a... more Quadcopter based technology utilizes a hybrid structure that delivers the ultimate services for auto control system and managements. The main objective of this study is to identify PID parameters for real nonlinear system, which is a Quadcopter flying based on certain parameters via experiment method. The control law has been programmed in Teensy development board wired to 10-DOF IMU ‘Inertial Measurement Unit’ and other sensors in order to get a home-made autopilot. Accordingly, the procedure for PID controller is tuning the autopilot using ‘Ziegler-Nichols’ in order to identify the three parameters of PID which generate a stable response in lowest time-consuming. The Z-N ‘Ziegler-Nichols’ has been implemented in real time case for Quadcopter application through altitude stabilization in a nonlinear system. In conclusion, the results shows that, the significant contribution of Ziegler-Nichols implementation in nonlinear system of the altitude stabilization has been accurately defined as an alternative method of Ziegler-Nichols which has been originally designed for linear system only.
29th European Photovoltaic Solar Energy Conference and Exhibition, Nov 7, 2014
Algeria has embarked on an ambitious renewable energy program in order to increase total food pro... more Algeria has embarked on an ambitious renewable energy program in order to increase total food production. It has a large number of remote small villages and islands that lack in the electricity, and probability of connecting them with the high voltage gridlines in the near future is very poor due to financial and technical constraints. This paper proposes the use of a PV, wind and diesel generator hybrid system with storage element in order to determine the optimal configuration of renewable energy in ALGERIA. The principals' interests of this system are the independence production, and the supplying of electric energy in isolated localities. Have at one's the energetic and economic models, and simulation tools, we effected an optimization study based on mixed productions. For this approach, the energetic resources of sites where are implanted telecommunications systems and their consumption are supposed known. Then the problem is the optimization of electric generators using these resources, enable to have an optimal type system for the powering of telecommunications equipments in rural site of Algeria. Homer (hybrid optimization model for electric renewable) simulation software was used to determine the technical feasibility of the system and to perform the economical analysis of the system.
Lecture notes in networks and systems, Dec 22, 2019
This paper presents a maximum power point tracking (MPPT) technique for photovoltaic (PV) system ... more This paper presents a maximum power point tracking (MPPT) technique for photovoltaic (PV) system based on accelerated particle swarm optimisation (APSO) algorithm. The main purpose is to handle the multi-modal P-V characteristic curve under partial shading conditions. The APSO based MPPT has the advantages to be simple and accurate to track the global maximum power point (GMPP) under severe partial shading patterns. The simulation results have shown that the proposed technique can find the GMPP with high speed and efficiency and presents good dynamic behaviour. In addition, this technique is superior than the conventional Perturb and Observe (P&O) based MPPT in global peak tracking.
ABSTRACT We propose in this paper, a systematic switching practical stabilization method for PWA ... more ABSTRACT We propose in this paper, a systematic switching practical stabilization method for PWA switched systems around an average equilibrium. For these systems, the main difficulty comes from the fact that to end in BMI formulation, it is necessary to represent the system in an augmented state space but a restricted one. However, the derived stabilizing conditions are not tractable as BMI in the restricted domain. We will present a method that overcomes this difficulty and drives asymptotically system states into a ball centered on the desired non-equilibrium reference. The efficiency of this practical stabilization method is showed by the ball smallness and the good robustness against disturbances. The design control searches for a single Lyapunov-like function and an appropriate continuous state space partition to satisfy stabilizing properties. Therefore, the method constitutes a simple systematic state feedback computation; it may be useful for on-line applications. As a direct application, satisfactory simulation results are obtained for two illustrative examples, a Buck–Boost converter and a multilevel one. Due to their functioning nature, these devices constitute good examples of switched systems. They are electrical circuits controlled by switches to produce regulated outputs despite the load disturbances and power supply irregularities.
2019 International Conference on Advanced Electrical Engineering (ICAEE), Nov 1, 2019
In robotic field, autonomous navigation safely is a timely subject. Therefore, many researchers t... more In robotic field, autonomous navigation safely is a timely subject. Therefore, many researchers try to elaborate a reliable system to respond this exigency. Among these systems, we mention multi sensor data fusion. The data fusion is an active field of research, It is almost applied in all domains. it is resolved by several manner. The best represented model of multi sensor fusion by excellence is the human fusion using the five senses. However, in our paper this problem is tackled based on an interesting method applied often in the risk management strategy. In our work, we have designed a new scheme of multi sensor data fusion using risk assessment of a three suggested sensors GPS, INS and Mono-SLAM. Based on these risks, we generate a three parameters dynamically used within an adaptive complementary filter. The aim of our work is to obtain an estimated pose from the three poses provided by the three sensors, but more safely than using ordinary methods of fusion. The simulation of the proposed solution shows a promising results in severe situations. Anyway, the fusion based on this approach at least gives a similar result to the ordinary complementary filter. However, the biggest improvement of the risk assessment reflects amelioration on the pose quality.
In this work, we develop an essential part of monocular simultaneous localization and mapping whi... more In this work, we develop an essential part of monocular simultaneous localization and mapping which is the matching process. However, the performance of any solution depends on the quality of the descriptor involved into the association approach. The most popular is binary descriptor due to their ability of matching with a high rate of matching in real time. In the present paper, we provide an ameliorated version of our previous work named local binary descriptor basing on 3D polynomial interpolation. The old version is reduced by the proposition of an algorithm of coefficients selection to deal with the real time constraint. This last is involved into a SLAM scheme named inverse depth parameterization for monocular SLAM. The result's quality is acceptable compared to the cross correlation in the old version of this SLAM.
Requirements, for better power control and rapid devices in the field of power converters, have c... more Requirements, for better power control and rapid devices in the field of power converters, have created many topological and control methods for power electronics. Renowned of them are the multilevel inverters topologies, who are broadly utilized as a part of high-power high-voltage applications because of their worthwhile execution contrasted with two-level inverters. The focal purpose of this paper is to evolve a control method for a 3-phase multilevel cascaded H-bridge photovoltaic (PV) inverter connected to the grid utility system with an LCL filter design using Space Vector Modulation (SVPWM) scheme. The control of the system (inverter-LCL filter) grid-connected is studied thru conventional direct-current d-q vector control strategy. Simulation results, in the SimPowerSystem / Matlab environment, demonstrate that the proposed control strategy can extend robust stability for system after changing reference parameters. An FPGA in the loop implementation of the suggested algorithm to create the switching sequences, is introduced for approval this algorithm in real time application.
International review of automatic control, Mar 31, 2019
Quadcopter based technology utilizes a hybrid structure that delivers the ultimate services for a... more Quadcopter based technology utilizes a hybrid structure that delivers the ultimate services for auto control system and managements. The main objective of this study is to identify PID parameters for real nonlinear system, which is a Quadcopter flying based on certain parameters via experiment method. The control law has been programmed in Teensy development board wired to 10-DOF IMU ‘Inertial Measurement Unit’ and other sensors in order to get a home-made autopilot. Accordingly, the procedure for PID controller is tuning the autopilot using ‘Ziegler-Nichols’ in order to identify the three parameters of PID which generate a stable response in lowest time-consuming. The Z-N ‘Ziegler-Nichols’ has been implemented in real time case for Quadcopter application through altitude stabilization in a nonlinear system. In conclusion, the results shows that, the significant contribution of Ziegler-Nichols implementation in nonlinear system of the altitude stabilization has been accurately defined as an alternative method of Ziegler-Nichols which has been originally designed for linear system only.
29th European Photovoltaic Solar Energy Conference and Exhibition, Nov 7, 2014
Algeria has embarked on an ambitious renewable energy program in order to increase total food pro... more Algeria has embarked on an ambitious renewable energy program in order to increase total food production. It has a large number of remote small villages and islands that lack in the electricity, and probability of connecting them with the high voltage gridlines in the near future is very poor due to financial and technical constraints. This paper proposes the use of a PV, wind and diesel generator hybrid system with storage element in order to determine the optimal configuration of renewable energy in ALGERIA. The principals' interests of this system are the independence production, and the supplying of electric energy in isolated localities. Have at one's the energetic and economic models, and simulation tools, we effected an optimization study based on mixed productions. For this approach, the energetic resources of sites where are implanted telecommunications systems and their consumption are supposed known. Then the problem is the optimization of electric generators using these resources, enable to have an optimal type system for the powering of telecommunications equipments in rural site of Algeria. Homer (hybrid optimization model for electric renewable) simulation software was used to determine the technical feasibility of the system and to perform the economical analysis of the system.
Lecture notes in networks and systems, Dec 22, 2019
This paper presents a maximum power point tracking (MPPT) technique for photovoltaic (PV) system ... more This paper presents a maximum power point tracking (MPPT) technique for photovoltaic (PV) system based on accelerated particle swarm optimisation (APSO) algorithm. The main purpose is to handle the multi-modal P-V characteristic curve under partial shading conditions. The APSO based MPPT has the advantages to be simple and accurate to track the global maximum power point (GMPP) under severe partial shading patterns. The simulation results have shown that the proposed technique can find the GMPP with high speed and efficiency and presents good dynamic behaviour. In addition, this technique is superior than the conventional Perturb and Observe (P&O) based MPPT in global peak tracking.
ABSTRACT We propose in this paper, a systematic switching practical stabilization method for PWA ... more ABSTRACT We propose in this paper, a systematic switching practical stabilization method for PWA switched systems around an average equilibrium. For these systems, the main difficulty comes from the fact that to end in BMI formulation, it is necessary to represent the system in an augmented state space but a restricted one. However, the derived stabilizing conditions are not tractable as BMI in the restricted domain. We will present a method that overcomes this difficulty and drives asymptotically system states into a ball centered on the desired non-equilibrium reference. The efficiency of this practical stabilization method is showed by the ball smallness and the good robustness against disturbances. The design control searches for a single Lyapunov-like function and an appropriate continuous state space partition to satisfy stabilizing properties. Therefore, the method constitutes a simple systematic state feedback computation; it may be useful for on-line applications. As a direct application, satisfactory simulation results are obtained for two illustrative examples, a Buck–Boost converter and a multilevel one. Due to their functioning nature, these devices constitute good examples of switched systems. They are electrical circuits controlled by switches to produce regulated outputs despite the load disturbances and power supply irregularities.
2019 International Conference on Advanced Electrical Engineering (ICAEE), Nov 1, 2019
In robotic field, autonomous navigation safely is a timely subject. Therefore, many researchers t... more In robotic field, autonomous navigation safely is a timely subject. Therefore, many researchers try to elaborate a reliable system to respond this exigency. Among these systems, we mention multi sensor data fusion. The data fusion is an active field of research, It is almost applied in all domains. it is resolved by several manner. The best represented model of multi sensor fusion by excellence is the human fusion using the five senses. However, in our paper this problem is tackled based on an interesting method applied often in the risk management strategy. In our work, we have designed a new scheme of multi sensor data fusion using risk assessment of a three suggested sensors GPS, INS and Mono-SLAM. Based on these risks, we generate a three parameters dynamically used within an adaptive complementary filter. The aim of our work is to obtain an estimated pose from the three poses provided by the three sensors, but more safely than using ordinary methods of fusion. The simulation of the proposed solution shows a promising results in severe situations. Anyway, the fusion based on this approach at least gives a similar result to the ordinary complementary filter. However, the biggest improvement of the risk assessment reflects amelioration on the pose quality.
In this work, we develop an essential part of monocular simultaneous localization and mapping whi... more In this work, we develop an essential part of monocular simultaneous localization and mapping which is the matching process. However, the performance of any solution depends on the quality of the descriptor involved into the association approach. The most popular is binary descriptor due to their ability of matching with a high rate of matching in real time. In the present paper, we provide an ameliorated version of our previous work named local binary descriptor basing on 3D polynomial interpolation. The old version is reduced by the proposition of an algorithm of coefficients selection to deal with the real time constraint. This last is involved into a SLAM scheme named inverse depth parameterization for monocular SLAM. The result's quality is acceptable compared to the cross correlation in the old version of this SLAM.
Requirements, for better power control and rapid devices in the field of power converters, have c... more Requirements, for better power control and rapid devices in the field of power converters, have created many topological and control methods for power electronics. Renowned of them are the multilevel inverters topologies, who are broadly utilized as a part of high-power high-voltage applications because of their worthwhile execution contrasted with two-level inverters. The focal purpose of this paper is to evolve a control method for a 3-phase multilevel cascaded H-bridge photovoltaic (PV) inverter connected to the grid utility system with an LCL filter design using Space Vector Modulation (SVPWM) scheme. The control of the system (inverter-LCL filter) grid-connected is studied thru conventional direct-current d-q vector control strategy. Simulation results, in the SimPowerSystem / Matlab environment, demonstrate that the proposed control strategy can extend robust stability for system after changing reference parameters. An FPGA in the loop implementation of the suggested algorithm to create the switching sequences, is introduced for approval this algorithm in real time application.
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