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Search results for: frequency
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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, ...
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 ...
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, ...
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 ...
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, ...
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 ...
Year: 2009, Volume: 9, Issue: 2
... ensure a closed loop load current. Digital Object Identifier 10.4316/AECE.2009.02004 23 Advances in Electrical and Computer Engineering Volume 9, Number 2, 2009 ¾ The switching frequency fs=‰s /2€ must have a 1 1 value twenty times higher than the maximum of cos(3‰o t)+ cos(3‰i t) ...
Year: 2014, Volume: 14, Number: 3
... voltage DROughts ISLanding Stability Natural threats HAIlstorms transmission SHort circuit Transient HEAt waves LINe voltage Stability TORnadoes transmission BReak CURrent OVer current LIGhtning LINe THUnder power TOWer COllapse ANGle Low frequency RAInstorm Oscillation FIRes WILd fires INSulators INsulation Subsynchronou failure s Oscillation* HEAlth EPIdemics BUSbar MAlfunction Stability Loss disasters SHort circuit FAMines transformation TRAnsformer TRip Static angle SPAce IMPact ...
Year: 2013, Volume: 13, Number: 4
... New design requirements, when higher dynamic range and higher operational transconductance amplifiers in CMOS technology, providing elementary "tanh" and "sinh/cosh" functions with frequency performance at low power consumption and small high accuracy are proposed. These elementary cells are used to chip area are required. design first order CMOS ELIN filters ...
Year: 2015, Volume: 15, Number: 1
... Digital Object Identifier 10.4316/AECE.2015.01014 95 1582-7445© 2015 AECE Advances in Electrical and Computer Engineering Volume 15, Number 1, 2015 II. RELATED WORK enhance operating frequency of their NPS architecture. On-chip (FPGA) data buffering is essentially required They use register as pipeline stage at the input and output in along with NPS ...
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