Novel approach in investigating the rotor lamination iron losses

• This paper presents a 2-D design of a measurement setup that subjects laminated steel to field conditions corresponding to the ones of the rotor in a Salient Pole Synchronous Machine (SPSM). This stationary setup exposes the test samples to traveling magnetic waves in an air-gap. The purpose of this setup is to simulate the eddy current losses that result from high frequency magnetic fields within the volume of the test samples. The investigation of the design and the dimensioning of the model is conducted in a 2-D Finite Element Method (FEM) model. The study shows that it is possible to emulate traveling sinusoidal magnetic flux in the air-gap of a setup excluding motion. A rectangular shape of the setup was chosen due to the expected flexibility of the design as well as easy manufacturing. It was found that in order to achieve a constant amplitude of the traveling wave in the air-gap an implementation of an auxiliary winding is an effective solution.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

eddy current losses; measurement setup; traveling wave; air-gap harmonics; skin effect; 2-D Finite Element Method; simulations; rotor losses; lamination; Salient Pole Synchronous Machine

Teknikvetenskapens lärande och kommunikation

Education and Communication in the Technological Sciences

Electrical Engineering

Elektro- och systemteknik

Publication and Content Type

ref (subject category)

kon (subject category)