Optimum design of rotating machines using grain-oriented electrical steel sheet by two-dimensional vector magnetic property

Enokizono, Masato; Todaka, Takashi; Shimoji, Hiroyasu; Ikariga, Atsushi

doi:10.1109/acemp.2007.4510545

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…But this anisotropy is a problem in AC machines because of the rotating magnetic field. Only a few special machines, big turbo-generator particularly, use GO segmented steel [6].…”

Section: Electrical Steelsmentioning

confidence: 99%

Non-Segmented Grain Oriented Steel in Induction Machines

Cassoret¹,

Lopez²,

Brudny³

et al. 2014

PIER C

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Abstract-This paper presents a technique which improves energy efficiency of AC rotating machines by using Grain Oriented (GO) steel at stator core instead of Non Oriented (NO) steel. The losses of GO steel are lower than the NO ones, but only when the magnetic flux circulates along the rolling direction; consequently it is rarely used in AC machines where the magnetic flux rotates. By stacking many shifted GO laminations of AC machine stator, the flux pass from one lamination to another, and the core losses are reduced. A lot of experimentations have been done with unidirectional field, rotating field and with real induction machines. They show important improvements with GO shifted steel. The efficiency difference between a classical 10 kW induction machine and a modified machine with GO stator is more than 2 points. Moreover, the no-load current, and so the reactive power are smaller. This technique creates environmental and financial gains.

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“…But this anisotropy is a problem in AC machines because of the rotating magnetic field. Only a few special machines, big turbo-generator particularly, use GO segmented steel [6].…”

Section: Electrical Steelsmentioning

confidence: 99%

Non-Segmented Grain Oriented Steel in Induction Machines

Cassoret¹,

Lopez²,

Brudny³

et al. 2014

PIER C

View full text Add to dashboard Cite

show abstract

“…GOES is used in several applications where the flux is needed to flow in a specific direction, i.e. transformers [1, 4, 7, 8, 10, 11], self‐propelled rotary actuators [9], electrical machines [12] and reactors [13]. As a consequence of this requirement, these materials could be greatly beneficial in modular electrical machines, which have been considered as a cost‐effective choice to ease the winding of mass production and manufacturability of large machines, i.e.…”

Section: Introductionmentioning

confidence: 99%