- a first phase comprising three windings in series, one A1 A2 of NA turns on the first core 10, the other B3 B4 of NC turns on the second core 12 and coiled in the same direction and the last C4 C3 of N3 turns on the third core 14 and coiled in the direction reverse to the ...
The three-level PWM scheme is modeled using regular sampling strategy. The scheme is implemented with a TMS320C50 digital signal processor and tested on a prototype MOSFET inverter with a 0.5HP two-phase motor load. The experimental performance is found in good agreement with the theoretical ...
INSTANTANEOUS POWER FACTOR CORRECTION IN THREE-PHASE USING POWER FACTOR PREREGULATOR IN CONVERTERS In this paper a novel three phase power -factor correction scheme is proposed using two single phase PFC modules. A Power Factor Preregulator (PFP) is used... S Babu,A Karthikeyan,M Balaji 被引量...
Comparative evaluation of three-phase Si and SiC AC-AC converter systems In academia, for more than thirty years, Matrix Converters have been considered as one of the future converter concepts for variable speed drives for industry and more recently also for More Electric Aircraft or renewable ener...
This paper presents a new topology for a high power factor three-phase PWM rectifier system, without a neutral wire, with output voltage control and high efficiency. The control is simple and was implemented using commercial single phase modulators with independent current loops and a voltage loop...
Three-phase data also showed significant but not such dramatic diflerences, depending on the combined liquid rate being above or below the bubble rise velocity in the inlet leg. Again the variation of pressure drop for the system could be qualitatively explained by the observedflow regimes. For...
Patients not proceeding with surgical decompression in this multicentre non-inferiority, Phase 3 trial were randomised to 10 Gy/SF or 20 Gy/5Fx. A change in mobility from baseline to 5 weeks for each patient, was evaluated by a Modified Tomita score: 1 = ‘Walk unaided’, 2 ...
The PWM Generator (Three-phase, Two-level) block controls switching behavior for a three-phase, two-level power converter. The block: Calculates on- and off-gating times based on the block inputs: Three sinusoidal reference voltages, one per phase A DC-link voltage Uses the gating times ...
Between March 2013 and November 2016, a total of 400 patients with middle and lower thoracic esophageal cancer were included and randomly assigned to undergo esophagectomy with either three- or two-field lymphadenectomy at a 1:1 ratio. Analyses were done according to the intention-to-treat princip...
(6x6) L matrix are obtained from excitation currents (one three-phase winding is excited and the other three-phase winding is left open) and from positive- and zero-sequence short-circuit reactancesX112andX012measured with three-phase winding 1 excited and three-phase winding 2 short-circuit...