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High speed permanent magnet synchronous motors (PMSM) are increasingly used in the field of electric traction due to their high mass and power density. Usually the motor is piloted by a vector control associated with a flux-weakening algorithm which regulates the voltage norm. If the critical point is located within the current limit then it is discerning at very high speed to drive the motor with...
In this paper, an electric naval propulsion system based with a Doubly Fed Induction Machine and two Voltage Source Inverters is proposed. So, in this propeller motor architecture the DFIM is fed by Stator and Rotor Voltage Source Inverters (VSIs). To produce more efficient and environmentally-friendly ships, a certain number of new concepts have been developed. So, the main idea of this study is...
High speed Permanent Magnet Synchronous Motors (PMSM) are used in electrical vehicles because of their strong power density. The high speed implies a big electromotive force and requires flux-weakening. Usual control algorithms do flux-weakening by adding negative Id current when the required voltage by the current regulation exceeds the maximum voltage depending on the battery. If the magnet can...
In this paper, the authors treat one of the major problems noted in the association of electrical motors fed by the inverters, it is well known as the acoustic and vibratory noise. An electrical propulsion system mainly based on a Doubly Fed Induction Machine (DFIM), operating in motor mode and supplied by two Voltage Source Inverters (VSIs) is introduced. The modeling of the marine propeller is reported...
In this paper, the authors suggest a new design of propulsion system mainly based on a Doubly Fed Induction Machine (DFIM), operating in motor mode and supplied by two Voltage Source Inverters (VSIs). The modeling of the marine propeller is reported and the equations defining its behavior are established. A Stator Flux Oriented Control (SFOC) and Sliding Mode Control (SMC) are developed and associated...
In this paper, a doubly fed induction machine (DFIM) operating in motor mode and supplied by two voltage source inverters—in stator and rotor sides—is presented. The aim is to analyze the sensorless rotor position operation of a dual direct torque control (DDTC) of the DFIM. This paper presents a sensorless DDTC for a DFIM speed drive in order to guarantee the static and dynamic system performances...
The advancements in power electronics and real-time control play a significant role in the global industrialization and energy conservation trends of the 21st century. These developments are increasing the use of electrical machines in various applications. In this paper, the Dual Direct Torque Control (DDTC) associated with space vector modulation (SVM) is developed for a Doubly Fed Induction Machine...
The purpose of this paper is to design an automaton to ensure service continuity of an induction machine railway traction system. After introducing the system and the various types of architecture, we studied its behaviour and strategies to maintain service continuity in the case of pantograph detachment, loss of adherence and stick-slip perturbation. This study led to a choice of configuration that...
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