593 results found.
Year: 2012, Volume: 12, Number: 2
... MIMO) controllers damping control technique considers the problem of with the least Frobenius norm feedback gain matrix. The assigning the eigenvalues associated with inter-area modes simulation results of frequency and time domains verify the into a specified region in the left-half plane (LHP). By effectiveness of the wide-area damping controller for various operating conditions. ...
Terms matched: 1 - Score: 51 - 1,177k
Year: 2014, Volume: 14, Number: 3
... that the transistor power factor and eliminate certain harmonics. In [5 ], an and the diode are replaced by two bidirectional current IGBT chopper with a 5kHz frequency was analyzed by switches. simulation. Reference [6] presents a three-phase AC-AC converter with nine IGBTs and [7] suggests a method for im L ...
Terms matched: 1 - Score: 49 - 832k
Year: 2020, Volume: 20, Number: 3
... , Arai [5]. In this paper, the authors constructed a receiver for allowing the investigation of electrical spontaneous or very weak signals of RF (Radio Frequency) based on stimulated activities of neurons, with or without the use of Schmitt trigger electronic circuit, exemplifying the use of drugs or medicines. Fig. ...
Terms matched: 1 - Score: 49 - 2,048k
Year: 2010, Volume: 10, Issue: 1
... . It minimizes the torque pulsations and [Vi]= Vim cos(‰i t+ 2€ /3) uses power electronics components that allow a higher commutation frequency compared to the simple machines. cos(‰i t+ 4€ /3) However, the double stator induction machines supplied by nd the vector [Vo ...
Terms matched: 1 - Score: 47 - 767k
Year: 2010, Volume: 10, Issue: 3
... measurement parameters for the detection of downlink TETRA signals, settings, in two representative cases, one on the central through energy measurement. In order to optimize the frequency of the TETRA channel and another on the detection parameters we have assessed the probabilities of discrete component frequency of the synchronization detection and of false alarm, based ...
Terms matched: 1 - Score: 47 - 584k
Year: 2009, Volume: 9, Issue: 1
... 10mH, 15mH, 20mH and 25mH ma (sin ‰ m t+ 0.16 sin 3‰ m t)+; ‰ m t 2€ respectively). The frequency commutation is fc=5kHz, the 3 3 frequency modulation is fp= 50Hz, the frequency modulation ratio is mf= fc/fp=100, ...
Terms matched: 1 - Score: 47 - 766k
Year: 2015, Volume: 15, Number: 3
... Motivated by the where ‰ r denotes the secondary angular speed and ‰-‰ r above discussion, an attempt is made in this paper to provide represents the slip angular frequency( € r ‚ sl). a survey in field-weakening speed control of LIMs The thrust developed by the machine can be expressed as: considering the ...
Terms matched: 1 - Score: 46 - 1,163k
Year: 2009, Volume: 9, Issue: 2
... stator flux vector. Thus, the machine torque can be has some drawbacks such as operation with variable regulated to generate the stator angular speed, which becomes switching frequency and large torque ripple, due to the a command signal and permits to overcome the problem of its estimation. Furthermore, with the combined control methods, ...
Terms matched: 1 - Score: 46 - 724k
Year: 2010, Volume: 10, Issue: 4
... electrical drives was influenced by the T€ p p € 1 i1 € 1 i1 € (4) development of semiconductor components which enabled 2 the development of modern frequency converters as the In Takahashi Method (T_DTC) of direct torque control, practical realization of modern control methods of A.C. the magnetic flux of the stator ...
Terms matched: 1 - Score: 45 - 4,098k
Year: 2010, Volume: 10, Issue: 3
... Advances in Electrical and Computer Engineering Volume 10, Number 3, 2010 Static Frequency Converter with RNSIC Converter and Double Branch Inverter for Supplying Three-Phase Asynchronous Motors Nicoleta Roxana BUZATU, Alexandru LAZAR, Dimitrie ALEXA ,Georgian Alexandru LAZAR, Mariana MOISA (Pletea) Gheorghe Asachi Technical University of Iasi, Bd. Carol I, ...
Terms matched: 1 - Score: 45 - 641k