Communications Internationales
Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/11
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Item An application of PMU in solar energy generation Plant Connected Power Grid(2019) Mahboubi, Meriem; Bentarzi, Hamid; Ouadi, AbderahmaneSolar energy is one of the most abundant green energies in our planet. In order to satisfy the world demand of electrical energy, solar energy may be used. Identical to all other types of power generation plants, the integration of the solar energy source in power grid has an impact on its operation. Thus, when the electrical power is injected into the power grid by the solar energy source, the system electrical parameters must be well monitored for synchronization purpose. This can be accomplished with the aid of synchro-phasors measurement units. The phase angle of the utility is a critical parameter for the operation of power devices feeding power into the grid like PV inverters. There are many techniques to obtain the grid phase angle such as the zero-crossing detection and the orthogonal phase locked loop. This research work discusses the use of PMUs (Phasor Measurement Unit) for providing this important parameter to system synchronization in the case of high penetration of solar energy in the power gridItem Memetic Algorithm for Coordinated design of Power System Stabilizers in multimachine system(IEEE, 2019) Baadji, Bousaadia; Bentarzi, Hamid; Belagoune, Soufianea memetic algorithm is proposed for the coordinated design of power system stabilizers in multimachine power system in order to mitigate the electromechanical oscillations and enhance the system stability.The memetic algorithm is based on the combination traditional genetic algorithm and the Nelder-mead local search method in order to balance between the diversification and intensification so as to find the optimal parameters of the PSSs.The nonlinear simulation and Eigen analysis on the three machine nine bus system (WSCC) demonstrates the potential of the proposed controllers in the enhancement of the overall system stabilityItem Impact of STATCOM on generator positive-offset mho element loss of excitation protection((IEEE, 2017) Mati, Ayache; Bentarzi, HamidIn this paper simulation studies have been conducted using Simulink/MATLAB software in order to investigate the impact of STATCOM on the positive-offset mho element loss of excitation (LOE) protection scheme in synchronous generator. The obtained results show that the operation of the positive-offset protection scheme takes more time under the integration of STATCOM in the transmission line. Moreover, an under reach phenomena may occur under partial loss of excitation (PLOE) condition of a generator with lightly loadingItem SMIB power system model with PSS for transient stability studies(IEEE, 2017) Bousaadia, Baadji; Bentarzi, Hamid; Bouaoud, AbdelhakimThis paper presents the development of single machine infinite bus system (SMIB) model for transient stability studies with detailed synchronous machine model and a Power System Stabilizer (PSS) in matlab/simulink software. The proposed method of the SMIB simulator is computationally efficient and flexible for interfacing the synchronous machine with the external network and for extending to multimachine system representation. The Simulation on the SMIB for the machine model with manual control, with the excitation system included and with the excitation system and PSS is performed to evaluate the transient stability of the system when a three phase fault on the transmission line is occurred with different clearing times. The obtained results show an accurate performance of the model developed for stability studies.Item Impact of STATCOM on generator positive-offset mho element loss of excitation protection(IEEE, 2017) Ayache, Mati; Bentarzi, HamidIn this paper simulation studies have been conducted using Simulink/MATLAB software in order to investigate the impact of STATCOM on the positive-offset mho element loss of excitation (LOE) protection scheme in synchronous generator. The obtained results show that the operation of the positive-offset protection scheme takes more time under the integration of STATCOM in the transmission line. Moreover, an under reach phenomena may occur under partial loss of excitation (PLOE) condition of a generator with lightly loadingItem A new framework of smart auto-recloser(IEEE, 2018) Bentarzi, Hamid; Ouadi, Abderrahmane; Abdelkader, AbdelmoumeneAlmost all type of faults that occur in distribution network are self-clearing faults, so the protective relays must not break the power circuit and interrupting the power supply to the consumers. Therefore, a protective device such as auto-recloser is more suitable for this situation. An auto-recloser is a circuit breaker associated with a control circuit that may automatically re-close the circuit breaker after opening it due to the fault detection. Since more than 80% of the faults are self clearing in their nature hence, power outage time can be reduced if the reclosing function is automated and carefully planned. In this paper, a new frame work of smart auto-recloser has been implemented in PC associated with NI7851 Card using the Labview. To validate the present work, the performance of developed device has been tested by Power System Simulator under different conditions.Item Analysis of small signal in North Africa Inter-Area Power System(IEEE, 2019) Tsebia, Mohammed; Bentarzi, HamidThe problem of oscillations in the interconnected power system is a subject of study in several regions. As the widening of the interconnected North Africa power system makes the grid very sensitive to low frequency oscillations, the presence of these oscillations can cause significant damage to the interconnection lines. The development of synchrophasor technology makes the system of measuring grid parameters more accurate with real-time synchronization. In this paper we used the PMU (Phasor Measurement Unit) for oscillations detection and signal analysisItem Robust Wide Area Power System Stabilizers Design in Multimachine System based on Backtracking Search Optimization(IEEE, 2019) Bousaadia, Baadji; Bentarzi, Hamid; Ayache, MatiIn this paper the design of a robust wide-area power system stabilizers (WAPSS) taking into account the effect of the time delay using Backtracking Search Optimization is presented. In The wide area control design the remote signal is used as input for the power system stabilizer since it has better observability compared to the local signal .However the introduced time delay due to communication links can degrade the performance of the WAPSS in some cases .The proposed BSA simultaneously search for the optimal WAPSS parameters that relocate the weakly damped modes and maximize the time delay for multiple operating conditions to guarantee the robustness. The effectiveness of the WAPSS is tested on the two-area four machine power system. The nonlinear simulation and eigenvalue analysis have revealed the effectiveness of the proposed controller in damping the inter-area oscillations even with a time delay in the remote signals.Item IoT Path Planning Approach for Mobile Robots(IEEE, 2018) Belaidi, Hadjira; Jugurtha, Belkalem; Abed, Mohamed Amine; Bentarzi, HamidPath planning is an essential task for any autonomous mobile robot to extract an optimal free path from a given initial position to a defined target. In this work, new approach built upon the internet of things (IoT) has been proposed; microprocessor based devices are used on path generation and robot platforms focus on path following. Hence, two different algorithms, Bug0 and Potential Field, are merged to create a hybrid approach using fixed cell decomposition for the environment and a map of this environment is created. Data are exchanged via the wireless LAN (local area network). The obtained results surpass the traditional implementations where robots were making every decision. Moreover, the proposed topology accomplishes scalability easily. Therefore, this work consists of the development and the implementation of intellectual and robust software to automate the robot tasks. A map, built basing on data acquired from a camera, will activate the whole process; then, a computer (or any microprocessor device) will treat these data and generate an optimal trajectory and send it to the robot platform via the wireless medium to enable it to navigate from any given initial point to any target. The robot is also able to detect a change in the environment and report it to the computer to get a new path.Item Airplane Reliability Study Using Graph Theory Based Matlab GUI Application(IEEE, 2019) Bourezg, Abderrabi; Bentarzi, HamidThis paper presents an airplane reliability study using a developed Matlab GUI application that is based on graph theory. This study deals with the determination of the reliability of an aircraft by considering its all subsystems such as airframe, cockpit instrumentation, control system, electrical circuit and power plant system. The developed application can handle any failure distribution functions. It uses the inclusion-exclusion method for finding the minimal paths for directed acyclic graph using reliability block diagram. A system may be considered to operate if there exists a set of operating components from the source to the target. So, at least minimal paths must function for the system operation. The probability of the union of all minimal paths may be employed to determine the reliability of the whole system.