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In this paper, we propose a feedforward compensation scheme of the inverter dead-time to improve the performances of a sensorless Permanent Magnet Synchronous Machine (PMSM) drive at low speed and low load torque. Based on the identification of the duty cycle error due to the inverter dead-time an analytical expression depending on the phase currents is derived. It allows adjusting the input voltage...
In this paper, an analysis is conducted to compare the performances of two permanent magnet synchronous motor position controllers. Both simulation and experimental results show that if the position loop is sampled at a higher rate than the speed and currents loops, both structures (IP+P or P+IP) lead to suitable dynamic and static performances on condition that a proper time sharing is adopted.
This paper describes a comparative study allowing the selection of the most appropriate electric-propulsion system for a parallel hybrid electric vehicle (HEV). This paper is based on an exhaustive review of the state of the art and on an effective comparison of the performances of the four main electric-propulsion systems, namely the dc motor, the induction motor (IM), the permanent magnet synchronous...
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