lect6 - Lecture 6 EE743 Single-Phase Reluctance Machine...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 6 - EE743 Lecture 6 - EE743 Single-Phase Reluctance Machine Professor: Ali Keyhani Professor: Ali Keyhani
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Single-Phase Reluctance Machine Consider a single-phase [1- φ ] reluctance machine shown below, as’ as . x T e ϖ r θ r as_axis
Background image of page 2
3 The equations that describe a single-phase reluctance machine are, Single-Phase Reluctance Machine as asas c r r as c r as e t r r r r B A ls asas as asas as as as s as i L W i W i T dt t L L L L i L dt d i r v 2 0 2 1 ) , ( ) , ( ) 0 ( ) ( 2 cos = = + = - + = = + = θ ϖ λ
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Note that when θ r =0, the reluctance is maximum along the magnetic as_axis . The torque expression - T T e - is valid for the transient and steady-state conditions. Single-Phase Reluctance Machine ( 29 2 sin ) , ( 2 cos 2 1 2 2 as as i L i T i L L L W r B r as e r B A ls c = - + =
Background image of page 4
5 Consider the case when i as =constant, Single-Phase Reluctance Machine Reluctance Te Reluctance Te θ θ r rotor position rotor position Maximum 0 0 Maximum 0 0 as’ as x . as_axis (magnetic axis)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Single-Phase Reluctance Machine Reluctance Te Reluctance Te θ θ r rotor position rotor position k k as’ as x . as_axis (magnetic axis) max min < m 4 π θ = r
Background image of page 6
7 Single-Phase Reluctance Machine Reluctance Te Reluctance Te θ θ r rotor position rotor position 0 0 as’ as x . as_axis (magnetic axis) min 2 π θ = r
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 Single-Phase Reluctance Machine Reluctance Te Reluctance Te θ θ r rotor position rotor position -k -k as’ as x . as_axis (magnetic axis) max min < m 4 3 π θ = r
Background image of page 8
9 Single-Phase Reluctance Machine Reluctance Te Reluctance Te θ θ r rotor position rotor position Maximum 0 Maximum 0 as’ as x . as_axis (magnetic axis) π θ = r
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10 Assume that there is no external torque on the shaft.
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/17/2008 for the course ECE 743 taught by Professor Keyhani during the Spring '08 term at Ohio State.

Page1 / 33

lect6 - Lecture 6 EE743 Single-Phase Reluctance Machine...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online