Browsing by Author "Benslimane, T."

Now showing 1 - 13 of 13

Analysis of open-switch fault two level three phase voltage inverter behaviour and automatic detection and location using zero harmonic component
(2007) Benslimane, T.
Choice of input data type of artificial neural network to detect faults in alternative current systems
(2006) Benslimane, T.; Chetate, Boukhmis
This paper present a study on different input data types of ANN used to detect faults such as overvoltage in AC systems (AC network , induction motor). The input data of ANN are AC voltage and current. In no fault condition, voltage and current are sinusoidal. The input data of the ANN may be the instantaneous values of voltage and current, their RMS values or their average values after been rectified. In this paper we presented different characteristics of each one of these data. A digital software C++ simulation program was developed and simulation results were presented
Current zero harmonic component and min/max values based strategy for one and simultaneous two open-switches fault automatic diagnostic and location in two level three phase voltage inverter
(Iranian Journal of Electrical and Computer Engineering, 2007) Benslimane, T.
The good knowledge and information about the fault mode behavior of the PWM voltage source inverter is important to improve system design, protection and fault tolerant control. This paper develops a real-time condition-monitoring algorithm for 3-phase pulse width modulation (PWM) inverter. It is designed to detect and identify the transistor open-circuit fault and simultaneous two transistors open-circuit fault, which commonly occurs in the inverter drive system. The condition monitoring mechanism is based on phases currents mean, maximum and minimum values as fault indicators. The developed system has been rigorously assessed theoretically and it has been shown that the system is robust and reliable. Simulation results are presented. © 2007 JD
Currents mean and min/max values for diagnostic of one and two simultaneous open-switches faults in three phase voltage inverter fed permanent magnet brushless DC motor drives
(SAE International, 2008) Benslimane, T.
The faulty performance of permanent-magnet (PM) brushless dc motor drives is studied under one and two simultaneous open-switches faults conditions. This DC motor is supplied with three phase two level six IGBT (Insulated-Gate Bipolar Transistor) voltage source inverter. The three phases currents mean, min and max values of the DC motor are used as diagnostic indices. A knowledge algorithm is based to get information on which IGBT is in open-switch fault condition. This algorithm testing shows that the system could not only detect the open-switch fault, but also identify the faulty switch. Presented simulation results confirm the effectiveness of the proposed methodology
DC-link capacitor voltage balancing using redundant vectors for five-level neutral point clamped voltage source inverter
(IEEE, 2013) Abdelkrim, Thameur; Benamrane, K.; Benkhelifa, A.; Bezza, B.; Benslimane, T.
Experimentation of practical new technique for single and two simultaneous diodes open faults automatic detection and localization in six diodes three phase bridge rectifier
(SAE International, 2008) Benslimane, T.
The faulty performance of six diodes three phase rectifier is studied under one and two simultaneous open-diodes conditions. This rectifier is feeding a resistive load. The rectifier three phases currents zero harmonic components and their maximum and minimum values are used as diagnostic indices. A knowledge algorithm is based to get information on which diode is in open-switch fault condition. This algorithm testing shows that the system could not only detect the open-switch fault, but also identify the faulty switches. Presented simulation results confirm the effectiveness of the proposed methodology.
Implementation of a new hysteresis control strategy for autonomous parallel active filter
(2005) Benslimane, T.; Boukhmis; Aliouane, K.
The goal of this paper is to evaluate performances of a new hysteresis current control strategy for autonomous three phase parallel active filter in harmonic currents elimination (by simulation an experiment) as well as the reactive power compensation (by simulation). This strategy, called the Optimized Hysteresis Control Strategy, is based on currents errors and their derivatives calculation each time the zero voltage vector is set at the AC side of the inverter of the active filter. The harmonic currents are identified using the method of the instantaneous real and imaginary powers. A voltage regulation loop is used to regulate the condenser DC voltage which ensure a constant DC voltage to the inverter. A digital software C++ simulation program was developed and implemented via the data acquisition board (AT-MIO-16X DAQ from National Instruments). Simulation and experimental results are presented
Implementation of SVPWM based on hysteresis control strategy applied on autonomous parallel active filter
(2005) Benslimane, T.; Aliouane, K.; Chetate, Boukhmis
This paper presents a study on the harmonic depollution of the electric power network as well as the compensation of reactive power by an autonomous three-phase active filter at parallel structure. The presentation of the system of filtering starts initially with the presentation of the modeling of the whole of the system network, parallel active filter and polluting load. In second place, the principle of identification of the harmonic currents by the method of the instantaneous real and imaginary powers is developed, followed by the presentation of the SPACE VECTOR PULSES WIDTH MODULATION BASED ON HYSTRERESIS applied to the inverter of the active filter. A strategy which makes it possible to control the inverter of the filter to generate the harmonic currents required with the optimization of the number of commutations of the semiconductors used. The following part is devoted to the presentation of regulation system of the terminal condenser voltage of the autonomous active filter and in the last are presented the digital simulation and experimental results
Modeling and simulation of hybrid (wind + photovoltaic + battery) power system in south west Algerian site (Bechar)
(2009) Dahbi, M.; Benatiallah, A.; Benslimane, T.
The main objectives of the work described in this paper to model and simulate the autonomous hybrid photovoltaic wind generator with battery storage (PV/WG). The more accurate and practical mathematic models for characterizing PV module, wind generator and battery storage are adopted, combining with hourly measured meteorological data and load data. The hourly wind speed, solar radiation and environmental temperature data for the typical day’s in the different seasons recorded at Algerian Meteorological Office of Bechar (South Western of Algeria (31. 38° north latitude, 2. 15° western longitude, and 0.20 albédo)) [1], have been analysed to investigate the potential of utilizing hybrid (PV/ WG) energy conversion systems used to feed with electrical energy a typical rural house at Bechar. The performance of hybrid systems consisting of different rated power wind generator, PV areas and storage battery are presented. The hourly average energy generated for the above hybrid system configuration has been compared with hourly load data of typical house. Simulation is performed in a Matlab software environment
A new technique for simultaneous detection of one to two open-switch faults in three phase voltage-inverter-fed PM brushless DC motor drive
(2008) Benslimane, T.
The faulty performance of permanent-magnet (PM) brushless dc motor drives is studied under one and simultaneous two open-switches faults conditions. This DC motor is supplied with a three phase two level six IGBT voltage source inverter. The three phases currents mean values of the DC motor are used as diagnostic indices. A knowledge algorithm is based to get information on which IGBT is in open-switch fault condition. This algorithm testing shows that the system could not only detect the open-switch fault, but also identify the faulty switch. Presented simulation results confirm the effectiveness of the proposed methodology
A novel theory of reference harmonic current identification based on the per unit system used for the active filters
(2008) Abdelkhalek, Othmane; Benachaiba, C.; Benslimane, T.; Haidas, M.
This paper presents a new method of the harmonic currents reference identification. The principle is based on the transformation of the voltage and current of the electrical supply network in the per unit system. For this proposed solution we suppose that the voltage supply is sinusoidal and the load current is polluted. The harmonic current of nonlinear load is then obtained by the difference between both signals; per unit current and voltage where per unit voltage signal represent the fundamental of the load current. This new method is compared with that of named pq theory. Interesting results were obtained with a very satisfactory filtered current THD
A novel theory of reference reactive current identification based on the per unit system used for the active filters
(2008) Abdelkhalek, Othmane; Benachaiba, C.; Benslimane, T.; Haidas, M.
This paper, presents a new method of reactive current identification. The principle is based on the transformation of the voltage and current of the electrical supply network to the per unit system. The fundamental of the current is then obtained by extraction. This new method is compared to that of the theory pq. Interesting results were obtained with a satisfactory power factor correction
Study and control of three-level PWM rectifier-five-level NPC active power filter cascade by using feedback control and redundant vectors
(2010) Abdelkrim, Thameur; Berkouk, E.M.; Benamrane, K.; Benslimane, T.
The purpose of this paper is to develop a control and regulation method of input DC voltages of five-level Neutral Point Clamping (NPC) Active Power Filter (APF). This APF is applied for the enhancement of medium voltage network power quality by compensation of harmonic currents produced by an induction motor speed variator. In the first part, the authors present a topology of five-level NPC Voltage Source Inverter (VSI), and its simplified Space Vector Pulse Width Modulation (SVPWM) control strategy. In the second part, the control strategy of Three-level PWM current rectifier is presented. In the third part, to remedy to instability problem of the input DC voltages of the APF, the authors propose the feedback control of the three-level rectifier associate with a simplified SVPWM with redundant vectors method of five-level APF. After that, the sliding mode regulator used to control the APF is developed. The application of the proposed control algorithm offers the possibility of stabilizing the DC voltages of APF. Stable DC bus supply associated with sliding regulator of APF allows getting low-harmonic content network currents with unity power factor. In all over, the instability problem associated with use of multilevel APF is solved. The obtained results are full of promise to use the multilevel APF in medium voltage and great power applications