Passivity based control of nonlinear DC motors configurations and sensorless applications
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abstract
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In this paper, an unified framework for the control of all different DC motor configurations is presented. The control structure is based on the passivity property of electrical machines. Thus, separately- excited, parallel and series configurations can be studied following the same control philosophy, and without any simplification. These configurations present different nonlinear dynamics in each armature-field connection, and different number of control voltages. Moreover, each control law can be naturally adapted to work under a sensorless configuration, but assuming that the load torque is measurable. Nevertheless, an observer can be designed using the state information, or just electrical measurements to estimate on-line this variable. A simulation and experimental evaluations are presented to corroborate the control derivations. ©2007 IEEE.
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DC generator motors; Dynamics; Electric generators; Electronics industry; Industrial electronics; Motors; Passivation; Philosophical aspects; Technical presentations; Control laws; Control structures; Control voltages; Electrical machines; Electrical measurements; Experimental evaluations; International symposium; Load torque; Non-linear dynamics; Passivity-Based Control; Sensor-less; State information; Unified framework; DC motors
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