Search results for "Senseless"
showing 3 items of 3 documents
Tuning of Extended Kalman Filters for Sensorless Motion Control with Induction Motor
2019
This work deals with the tuning of an Extended Kalman Filter for sensorless control of induction motors for electrical traction in automotive. Assuming that the parameters of the induction motor-load model are known, Genetic Algorithms are used for obtaining the system noise covariance matrix, considering the measurement noise covariance matrix equal to the identity matrix. It is shown that only stator currents have to be acquired for reaching this objective, which is easy to accomplish using Hall-effect transducers. In fact, the Genetic Algorithm minimizes, with respect to the system covariance matrix, a suitable measure of the displacement between the stator currents experimentally acquir…
Velocity sensorless control of uncertain load using RKF tuned with an evolutionary algorithm and mu-analysis
2010
Abstract In case of a velocity control scheme for a load directly driven by an actuator, large variations of its parameters are problematic due to possible instability and large variations of the final performances. This performances are then decreasing if a sensorless control is implemented due to cost, reliability or application constraints. This paper proposes solutions to quickly and accurately tune an observer with a lower computer time consumption and lower conception time. A previous calculated state feedback is used as base for a Kalman filter with special noise matrices. An evolutionary algorithm optimizes the observers degrees of freedom all over the variations. The mu-analysis th…
Sentir lo indecible. Sentido, sin sentido y carencia de sentido en el Tractatus de Wittgenstein
2008
Este artículo analiza la concepción wittgensteiniana del sin sentido y, contra las interpretaciones resolutas, defiende que, bajo la influencia quizás de Mauthner y Weininger, el autor del Tractutus consideró los sin sentidos ontológicos y éticos correctos como cercanos a las proposiciones tautológicas carentes de sentido. This article analyses Wittgenstein�s conception of nonsense and, against resolute interpretations, defends that, perhaps influenced by Mauthner and Weininger, the Tractatus author conceived corrects ontological and ethical nonsenses like nearly to tautological senseless.