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This paper presents the experimental validation of a control reconfiguration method based on virtual sensors in order to implement a single and multiple current sensor fault-tolerant electric drive. The virtual sensors are generated from a bank of state observers based on the induction motor model in real time. These virtual sensors allow the use of a field-oriented control strategy even when one...
This project describes the investigation, development and implementation of an electronic device that measures the required force to break a seed. The device is based on a load cell which measures the force applied to the solid. The device detects the instant when the sample breaks. The obtained hardness values are stored in the device internal memory and are visualized in a liquid crystal display...
In this work, a fault tolerant control system for current sensors in induction motor drives is proposed. The system is composed by two standar control strategies and a bank of observers. The fault detection and isolation is performed by processing residuals generated by the bank of observers. When sensors are healthy, the motor is controlled by a vector control strategy using two current sensors....
Different induction machine (IM) models are evaluated, with the aim to determine its usefulness in efficiency studies for electric vehicles (EV) traction drives. In particular, two simple IM models proposed in the literature, which take into account the additional losses, are compared. With this aim, model parameters are adjusted from experimental tests performed on a 4 kW IM. Then, results obtained...
The behavior of an electric vehicle and its electric traction drive under sensor faults is studied in this paper. With this aim, simulations over a vehicle model with rear traction, using an induction machine, were carried out. The drive model can switch between three different conventional control strategies. With this setup, the longitudinal dynamics behavior of the vehicle and the electrical variables...
Different induction machine (IM) models are evaluated, with the aim to determine its usefulness in efficiency studies for electric vehicles (EV) traction drives. In particular, two simple IM models proposed in the literature, which take into account the additional losses, are compared. With this aim, model parameters are adjusted from experimental tests performed on a 4 kW IM. Then, obtained results...
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