Browsing 2017 by Issue Date

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  • Comparative Study of the Vibrating Armature and Rotary Vane Pumps 
    TURCANU, Adrian (Institute of Electrical and Electronics Engineers, 2017)
    The paper refers to the equipment for the espresso production process and the peculiarities of hydraulic systems and pump functioning. A common myth for newcomers to the espresso machine world is that the rotary vane pump, ...
  • Analysis of One Phase Special Electrical Machines using Finite Element Method 
    TEZCAN, Mehmet Murat; CANAKOGLU, Ali Ihsan; YETGIN, Asım Gökhan; CEVHER, Barış; TURAN, Mustafa; GÜN, Ayhan (Institute of Electrical and Electronics Engineers, 2017)
    Generally three phase motors are better than single phase motors but three phase system cannot be used in many applications for house. Especially single phase motors are used in city centers because of structure of the ...
  • FEM-based Analysis on the Operation of Three-Phase Induction Motor connected to Six-Phase Supply System. Part 2 – Study on fault-tolerance capability 
    LIVADARU, Leonard; BOBU, Alexandra; MUNTEANU, Adrian; VÎRLAN, Bogdan; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    Based on the fact that the three-phase induction machine proves higher performance under six-phase supply, which was demonstrated in Part 1 of the paper, this work investigates the fault-tolerance capability of the six-phase ...
  • FEM-based Analysis on the Operation of Three-Phase Induction Motor connected to Six-Phase Supply System. Part 1 – Operation under healty conditions 
    LIVADARU, Leonard; BOBU, Alexandra; MUNTEANU, Adrian; VÎRLAN, Bogdan; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents a comparative analysis of a three-phase induction motor that operates connected to the industrial supply system and separately to a six-phase supply source, as well. The design of the electric machine ...
  • Study of Direct-on-Line Starting of Low Power Asynchronous Motors 
    VLAD, Ion; CAMPEANU, Aurel; ENACHE, Sorin; ENACHE, Monica-Adela (Institute of Electrical and Electronics Engineers, 2017)
    This paper emphasizes technical and economic parameters at direct-on-line starting of low power asynchronous motors. There are presented a lot of simulations and there are carried out experimental tests, in order to establish ...
  • 3D FEM Validation of Homo-Heteropolar Synchronous Machine for Wind or Hydro Applications 
    TOPOR, Marcel; DEACONU, Sorin Ioan; TUTELEA, Lucian Nicolae; NUCĂ, Ilie; BURDUNIUC, Marcel (Institute of Electrical and Electronics Engineers, 2017)
    In an effort to introduce a low cost (PM less), low power electric wind or hydro generators, this paper reports on preliminary design aspects, 3D FEM analysis of a 2.5 KVA, 250- 1000 rpm, reactive homo-heteropolar brushless ...
  • Simulation of Asynchronous Motor Tests on the Simpowersystems Program Base 
    IAZLOVETCHI, Leonid; IAZLOVETCHI, Maria; BURDUNIUC, Marcel; RUJANSCHI, Dumitru (Institute of Electrical and Electronics Engineers, 2017)
    In the paper is used the Simpowersystems program which is used for calculating the static mechanical characteristic and operating characteristics within the range of variation of rotor slippage. Also, the program can be ...
  • Experimental Tests Regarding Diagnosis of Some Faults of Car Alternators 
    ENACHE, Sorin; CAMPEANU, Aurel; VLAD, Ion; ENACHE, Monica-Adela (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a practical way of identifying the defective diodes of an alternator. For this purpose are presented a series of experimental tests of some car alternators. There are detailed the automatic voltage ...
  • Method of the Parameters Determination of the Asynchronous Motor 
    AMBROS, Tudor; BURDUNIUC, Marcel; IAZLOVETCHI, Maria (Institute of Electrical and Electronics Engineers, 2017)
    In this paper is proposed a method for calculating the parameters of an induction motor that determine three points of a mechanical characteristic-nominal, critical and starting. Comparison of the results of the proposed ...
  • SYSEG – Symbolic State Equation Generation 
    IORDACHE, Mihai; DELEANU, Sorin; CURTEANU, Ciprian; GALAN, Neculai; MOSCU, Atanasie (Institute of Electrical and Electronics Engineers, 2017)
    The main objective of this paper is to present an efficient method for the systematic formulation of the state equations characterizing linear and/or nonlinear, time-invariant analog circuits with elements in excess. The ...
  • Three-Phase Voltage Generator for Stands in the Research Concerning Devices Models for Energy Systems Interconnection 
    POSTOLATY, Vitalie; SUVOROV, Alexandr; ANISIMOV, Vladimir (Institute of Electrical and Electronics Engineers, 2017)
    Due to with the actuality of the task of interconnection of non-synchronously operating alternating current energy systems, an experimental comparison of the interconnection devices models, which implement various methods ...
  • Five Phase Permanent Magnet Synchronous Generator Distributed Winding to Fractional Slot Concentrated Winding 
    MUNTEANU, Adrian; VIRLAN, Bogdan; LIVADARU, Leonard; SIMION, Alecsandru (Institute of Electrical and Electronics Engineers, 2017)
    A comparative study of a 5 phase PMSG with classical distributed winding and one with fractional slot winding is presented in this paper. Finite element analysis has been used for both models in order to estimate there ...
  • Optimizing the Design of an Asynchronous Motor Used in the Drive System of a Multiple Unit Train 
    PRESURĂ, Raluca-Cristina; VLAD, Ion; NICOLAE, Marian-Ştefan; NICOLAE, Petre-Marian (Institute of Electrical and Electronics Engineers, 2017)
    Some aspects concerning the optimal design and sizing of an asynchronous traction motor are described. The motor must be integrated with a static converter in the traction system of a locomotive driving a multiple unit ...
  • Low Frequency Electromagnetic Shielding Solutions 
    BEIU, Constantin; GOLOVANOV, Nicolae; TOADER, Cornel; BUICA, Georgeta (Institute of Electrical and Electronics Engineers, 2017)
    Electromagnetic shielding is one of the most important concerns of operators from high and very high voltage field, especially those carrying out live work. The electromagnetic field generated by high-voltage overhead power ...
  • Study of Conducted Electromagnetic Emissions of a Wireless Power System 
    ANDREICA, Sergiu; GLIGA, Marian; RACASAN, Adina; MUNTEANU, Calin; PACURAR, Claudia; CONSTANTINESCU, Claudia (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents a study regarding the conducted electromagnetic emissions of a wireless power system. Due to the fact that in the last few years there have appeared a lot of devices with wireless systems, it must be ...
  • Optimization of a Method to Evaluate the Fundamental Frequency in Real Time 
    COCIU, Voinea Radu; COCIU, Livia (Institute of Electrical and Electronics Engineers, 2017)
    The problem studied in this paper and described in the literature is determining the fundamental frequency of a non-trivial signal in real-time. Using the gradient-descent algorithm, a new optimized method for fundamental ...
  • Pole Magnets Segmentation Effect on Permanent Magnet Synchronous Generators 
    VIRLAN, Bogdan; MUNTEANU, Adrian; LIVADARU, Leonard; SIMION, Alecsandru; NACU, Ionut (Institute of Electrical and Electronics Engineers, 2017)
    This paper presents the analysis of using segmented permanent magnet instead of single pole units on a synchronous generator. The main reason of using such solutions is the fact that smaller, simple shapes permanent magnets ...
  • Using Differential Evolution Algorithms for the Analysis of Nonlinear Circuits 
    PETRESCU, Camelia; PLOPA, Olga (Institute of Electrical and Electronics Engineers, 2017)
    The paper presents the analysis of nonlinear resistive networks using a loop current formulation. The solution to the nonlinear algebraic system of equations is sought using several variants of differential evolution (DE) ...
  • The influence of long transmission lines on the overvoltage distribution across power transformer windings 
    CURTEANU, Ciprian; DELEANU, Sorin; IORDACHE, Mihai; CIUMBULEA, Gloria; GALAN, Neculai (Institute of Electrical and Electronics Engineers, 2017)
    This is a study presenting the impact of the long transmission lines on the overvoltage distribution across power transformer windings. The overvoltage propagates along the transmission line until reaches a HV winding, ...
  • Mobile Prototype with Solar Panels for Rehabilitation of Natural Reservations Lakes 
    RADULESCU, Victorita (Institute of Electrical and Electronics Engineers, 2017)
    In Romania, there are two Natural Reservations Lakes Mangalia and Techirghiol with salt-water, near the Black Sea, which confront with new environmental problems. In the last decades appeared infiltration with fresh-water, ...

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