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Synchronous reluctance machine (SynRM) has attracted much attention thanks to the advantages such as low cost, rugged rotor structure and high efficiency. Conventional drive for the SynRM is the same as that for permanent magnet synchronous machine (PMSM), i.e., the sine-wave drive. In this paper, square-wave drive is proposed for the SynRM. The torque performances with square-wave drive are analyzed...
In the field of permanent magnet synchronous motor (PMSM) self-sensing control, the initial rotor position estimation is always important, for which the rotor magnetic polarity estimation is particularly a major task. This paper presents a robust rotor polarity estimation method based on the comprehensive utility of both magnetic saturation effect and rotor angular acceleration. The method can be...
Influence of design parameters of a synchronous reluctance machine, such as the pole-pair number, stator and rotor structures and winding configuration, is investigated in this paper. A comprehensive optimization of these parameters is then made to enhance the machine performance. Related design rules are thus concluded. A prototype is designed following the rules, and calculated results by finite...
In the field of permanent magnet synchronous motor (PMSM) self-sensing control, the initial rotor position estimation is always important, for which, the rotor magnetic polarity estimation is particularly a major task. This paper presents a robust rotor polarity estimation method based on the comprehensive utility of both magnetic saturation effect and rotor angular acceleration. The method can be...
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