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Search results for: frequency
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Year: 2010, Volume: 10, Issue: 2
... section. This signal comes from the external port GCK0 and The same input bus DIN[7. 0] is used to load both the B has a fixed frequency of 50 MHz, but it could have a much and Q registers when LDB or LDQ signals become active greater frequency (up to maximum 169 MHz) ...
Year: 2010, Volume: 10, Issue: 2
... , PMDC-PMSG systems are mathematically synchronous generator is coupled and driven by a permanent modeled and simulated in MATLAB&Simulink software. Then magnet synchronous dc motor. A frequency cyclo-converter the results are discussed. A low power permanent magnet has been used for the output voltage regulation. The motor synchronous generator is driven by a permanent ...
Year: 2010, Volume: 10, Issue: 2
... - from the beginning. Initially, the special low frequency of electronic equipment (and transformer, if AC ... , the four-axle bogie locomotive has been Synchronous Motors or Medium-Frequency Transformers are standard in passenger and goods service. ... SM SM SM SM SM SM N Figure 20. Low-frequency (5 Hz) power oscillations in Switzerland. ...
Year: 2010, Volume: 10, Issue: 3
... conventional protection will not operate [53]. comparative tables and graphs demonstrating the frequency of Reference [3] explains that over current devices fail to each high ... . Reference [117] described the use of multiple techniques such as time-time and time-frequency transforms algorithms to detect various types of faults and the use of an combined ...
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: 2010, Volume: 10, Issue: 3
... the PSNR value for the watermarked images generated by the frequency sub-bands of the host image using pixel-wise proposed method ... the maximum and second is due to specific features of space-frequency localization, maximum amplitude coefficients of each super tree ... watermark is watermarking, wavelet trees inserted into the three mid-frequency sub-bands LH2, HL2 and HH2. From these ...
Year: 2010, Volume: 10, Issue: 3
... for empirical analysis of power control algorithms has been operating in the low UHF and VHF band. The operating done and the reduction in the power consumption has been frequency for this transceiver can be set anywhere between achieved and it is also stated that the combination of low 135MHz to 650MHz. By using the divide by two ...
Year: 2010, Volume: 10, Issue: 3
... semiconductor power electronic between inverter output and filter elements is required to components have enabled advanced control techniques with reshape the motor terminal voltage which may violate the high switching frequency and the high efficiency. Complex inverter's current limit. control algorithms have been widely used and got simplified In classical PWM and flux vector controlled drives, due ...
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: 3
... finding the parameters of order filter and a second order filter. a second order interface filter connected between the power system and the shunt active filter based on switching frequency of the active filter. Many publications on power active filters include various design methods for the interface inductive filter which take into account the injected current and its ...
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