Proceedings ArticleDOI
Consideration of the Skin Effect in a Transient Model of Line-Start Synchronous Reluctance Machines
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In this article, an analytical calculation model of line-start synchronous reluctance machines with flux barriers filled with conductive material considering the skin effect is presented, where rotor bars are divided into multiple layers, where the current density is assumed to be evenly distributed.Abstract:
An analytical calculation model of line-start synchronous reluctance machines with flux barriers filled with conductive material considering the skin effect is presented. The rotor bars are divided into multiple layers, where the current density is assumed to be evenly distributed. The subdivision is done with respect to the skin depth in the used material at the given frequency. The stator and rotor voltage equations are adapted to the new approach. The results of the analytical model at stall and synchronized state are compared to a transient linear two-dimensional Finite Element Analysis. As proven by the good agreement of the stator currents and rotor winding losses with FEM, the proposed method to consider the skin effect is accurate.read more
Citations
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Journal ArticleDOI
Line-Start Synchronous Reluctance Motor: A Reduced Manufacturing Cost Avenue to Achieve IE4 Efficiency Class
TL;DR: In this paper , the Line Start Synchronous Reluctance Motor (LSSynRM) was proposed to improve the efficiency of the induction motor by introducing the line start synchronous reluctance motor in the IM motor.
Proceedings ArticleDOI
Consideration of the Saturation in a Transient Model of Line-Start Synchronous Reluctance Machines
J. Rituper,Raimund Gottkehaskamp +1 more
TL;DR: In this article , the effect of saturation in a rotor with saliency is highlighted and considered by individual saturation permeance factors for direct and quadrature axis, which manipulate the fundamental flux linkage so that its value for a specific current matches with a reference value from FEM.
Proceedings ArticleDOI
Consideration of the Saturation in a Transient Model of Line-Start Synchronous Reluctance Machines
TL;DR: In this paper , the effect of saturation in a rotor with saliency is highlighted and considered by individual saturation permeance factors for direct and quadrature axis, which manipulate the fundamental flux linkage so that its value for a specific current matches with a reference value from FEM.
References
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Book
Dynamics of Saturated Electric Machines
TL;DR: In this article, the magnetic equivalent circuit theory of electric machines has been studied and the transform matrices of A.C. windings have been derived, which play a very important role in magnetic equivalent circuits, because they connect the quantities from the ma chine's magnetic circuit, branch fluxes, and mmfs with the mchine's phase currents and fluxes.
Book
The Induction Machines Design Handbook
Ion Boldea,Syed A. Nasar +1 more
TL;DR: In this article, the authors present a detailed thermal equivalent circuit for transients for a single-phase supply induction motors with single-input single-out (SISO) and single-output (SIMO) induction motors.
Journal ArticleDOI
Optimum Design of an IE4 Line-Start Synchronous Reluctance Motor Considering Manufacturing Process Loss Effect
Huai-Cong Liu,Ju Lee +1 more
TL;DR: An optimum design and comparative study of LS-SynRMs with additional losses and impact during the manufacturing process (electrical steel cutting/punching damage as well as squirrel-cage die-casting with bubble effects) and indicates that the design with the “manufacturing process loss” effect should be considered and compensated for the design in order to achieve an IE4 class efficiency and ensure synchronization.
Proceedings ArticleDOI
Line-start synchronous reluctance motors: Design guidelines and testing via active inertia emulation
TL;DR: In this article, the authors reviewed the guidelines for the design of line-start synchronous reluctance motors and introduced a new technique for testing their capability of load synchronization, and two manufacturing solutions were proposed for comparison.
Journal ArticleDOI
Rotor Design of Line-Start Synchronous Reluctance Machine With Round Bars
TL;DR: A unique rotor design for line-start synchronous reluctance machines (LSSynRMs) is introduced that decreases the motor losses at steady state by about 28% and could be used to upgrade IMs in industry environments instead of replacing them.