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Search results for: transformer
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151. Performances of Gopinath Flux Observer Used in Direct Field Oriented Control of Induction Machines
Year: 2011, Volume: 11, Number: 1
... rotoric speed we must determine the components of the stator current. coefficients for the estimator gate (g a, g b). The two poles The axes transformer block "TA", computes the rotation must follow the stability condition of the system, meaning with the angle β of the active I A and the ...
Year: 2015, Volume: 15, Number: 2
... , M. Vakilian, E. Rahimpour, "A New Method for granularities from its coarse-grained structure are of large Detection and Evaluation of Winding Mechanical Faults in Transformer through Transfer Function Measurements", Advances in dimensions that those from the current steel block. Electrical and Computer Engineering, pp. 23-30, Vol. 11 ...
Year: 2010, Volume: 10, Issue: 1
... of INDUCTION MACHINE turns, Lsr= Lrs; otherwise, a reducing to stator process, The case of ideal machine with no leakage fluxes zero similar to the transformer study, is required). The total value winding resistances is taken into discussion. The fluxes of the windings can be defined with symbolic notations used for ...
154. Determination of Operation Characteristics of a Synchronous Generator by Static Experimental Tests
Year: 2016, Volume: 16, Number: 2
... Electric diagram used for positioning the rotor with its d axis along phase U For that purpose the V and W phase windings are series connected and supplied from an autotransformer with a Figure 6. Phasor diagram for SG operating under capacitive load reduced AC voltage. The field circuit is short-circuited by means of an ammeter. The ...
Year: 2015, Volume: 15, Number: 4
... 1F- vdc Vienna topology (M =1 ), the most popular PWM boost-type PFC concept with three voltage levels. By adding auxiliary Filter/ PWM PWM Transformer/ active power device(s) to 1F-Vienna circuit and through proper Rectifier Inverter Grid modulation strategies, the ripple frequency present in the input (a) ...
Year: 2010, Volume: 10, Issue: 3
... make very good distribution of compensation between the connected to the network by a 1200 MVA three-phase two filters. Moreover, the shunt active filter can be used to transformer. eliminate resonance between the impedance from source and A resistive load of 1000-MW is connected to the DC side the passive filter [6]. through a ...
Year: 2015, Volume: 15, Number: 3
... ] B.S. Dupczak, A.J. Perin, M.L. Heldwein, "Space vector modulation http://dx.doi.org/10.1109/TIE.2008.924160 strategy applied to interphase transformers-based five-level current [15] J. Dai, D. Xu, and B. Wu, "A Novel control scheme for current- source inverters, ...
Year: 2015, Volume: 15, Number: 3
... components are (14) and (15) respectively, The main parts of the schematic diagrams are the power supply, consisting in a 230/24 V transformer, the nonlinear load fed by the rectifier G2, voltage and current transducers 101 Advances in Electrical and Computer Engineering Volume 15, Number 3, 2015 U1 ...
Year: 2015, Volume: 15, Number: 3
... ] To estimate the iron-loss resistance values, several periodic experiments were performed. In this case, the dc m 0.5 supply voltage U dc was acquired by an autotransformer and a 3-phase diode bridge rectifier, whereas the residual ac 0 0 100 200 300 400 500 600 700 800 900 component was filtered out by means of ...
160. The Peak Control Function and its Applications to Transmission Line Effects in Class D Amplifiers
Year: 2014, Volume: 14, Number: 3
... 3, by lumping the power 1/T (jω, D) are rational functions, there is a frequency ω0 source, the MOSFET switches and the transformer into the such that (ω0,) can be partitioned into subintervals of voltage source VS. For ease of notation we shall use equal length |2π ...
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