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The control of a synchronous permanent magnet machine by means of direct control of stator flux using a novel Anti-Windup scheme is presented. The proposed strategy achieves torque control through load angle imposition and ensures maximum torque per ampere operation through the careful adjustment of the stator flux vector magnitude. The flux controller is implemented using a novel anti-windup scheme...
As in all industrial sectors, drives for AC motors are constantly pushed for improvement. Drives using a reduced capacitance for DC-link filtering have gather attention in recent years as a way not only to increase the drives life-time but also to improve the line harmonics while, due to the increased computing capabilities, maintaining a reasonably good torque control performance.
During unbalanced grid voltage faults the Power injected to the grid experiences 100Hz oscillations as a result of interactions between positive and negative sequence components of three-phase voltages and currents. These oscillations can become as high as %50 percent of the rated power. In this article an improved controller is proposed which present different behavior during normal operation and...
To determine if the Vibrio parahaemolyticus O3:K6 global pandemic clone has spread into Peru.A collection of 100 V. parahaemolyticus strains isolated from diarrhea cases in Peru were serotyped for O:K antigens and genotyped for the presence of the species-specific toxR gene and for the tdh and trh genes. In addition, the group-specific PCR (GS-PCR) and PCR for the presence of the open reading frame...
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