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Browsing by Author "Holik Piotr"

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Analysis and Effects of Inter-Bar Current and Skew on a Long Skewed-Rotor Induction Motor for Pump Applications

Dorrell David; Holik Piotr; Rasmussen Claus (IEEE, 2007)

This paper describes an investigation into the reasons for the reduction in starting torque of a very long skewed-rotor induction machine. It was previously assumed that inter-bar currents were the reason for the torque ...
Assessment of Losses in a Brushless Doubly-Fed Reluctance Machine

Scian Ilario; Dorrell David; Holik Piotr (IEEE, 2006)

This paper investigates the iron losses that occur in a brushless doubly-fed reluctance machine. This is a novel machine that is still being researched. It is found that the iron losses are quite high when using an ...
A Multisliced Finite-Element Model for Induction Machines Incorporating Interbar Current

Dorrell David; Holik Piotr; Lombard Patrick; Thougaard Hans-Jã¸Rgen; Jensen Finn (IEEE, 2009)

This paper initially reviews some previous work with respect to the effect of interbar currents on the performance of a cage induction machine with a skewed rotor. A multisliced nonlinear 2-D finite-element model is then ...
Performance Improvement of an External-Rotor Split-Phase Induction Motor for Low-Cost Drive Applications Using External Rotor Can

Holik Piotr; Dorrell David; Popescu Mircea (IEEE, 2007)

This paper describes the performance of an external-rotor split-phase induction motor for use in such applications as ceiling fans (although the pole number would be much higher than the 2-pole machine studied here). This ...

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Browsing by Author "Holik Piotr"

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Browsing by Author "Holik Piotr"