Line-start motors are gaining more attention in recent years as they can achieve very high efficiency while retaining the ability to self-start when connected directly to the grid. However, motor design is not a trivial matter, particularly when a certain compromise has to be found between performance at steady-state and the ability to synchronise even with large inertial loads. In this study the design of a line-start motor for centrifugal loads is presented, with particular attention to the rotor geometry, adopting a multi-objective optimisation including finite element analysis. Thanks to a proper selection of the objective function, both efficiency at steady state and starting capability are included in the optimization process.

Optimization of a Line-Start Motor for Centrifugal Loads within Premium Efficiency According to IEC Standard

Troncon D.;Alberti L.;
2021

Abstract

Line-start motors are gaining more attention in recent years as they can achieve very high efficiency while retaining the ability to self-start when connected directly to the grid. However, motor design is not a trivial matter, particularly when a certain compromise has to be found between performance at steady-state and the ability to synchronise even with large inertial loads. In this study the design of a line-start motor for centrifugal loads is presented, with particular attention to the rotor geometry, adopting a multi-objective optimisation including finite element analysis. Thanks to a proper selection of the objective function, both efficiency at steady state and starting capability are included in the optimization process.
2021
2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
978-1-7281-5135-9
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3414962
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