Variable Speed Commutatorless Energy Converters.

Abstract

The theory of three phase squirrel cage induction motors supplied by chopped d.c. supplies is developed. The differential equations are solved by a fourth order Runge-Kutta method explained in the appendix. The waveform of the applied voltage is either square of staircase in shape. The numerical method, specially modified for the application, yields the following results: (a) Current waveshapes in the stator when square wave voltages of 20 Hz to 120 Hz, and stepped wave voltages of 30 to 100 Hz, are applied to the stator terminals. (b) The troque variations at different loads and frequencies. (c) The slip variations at different loads and frequencies. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1973
Accession Number
AD0786005

Entities

People

  • David A. Remington
  • Edward A. Erdelyi

Organizations

  • University of Colorado Boulder

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Converters
  • Differential Equations
  • Doppler Effect
  • Equations
  • Frequency
  • Frequency Shift
  • Induction Motors
  • Mathematics
  • Motors
  • Rodents
  • Runge Kutta Method
  • Square Waves
  • Waveforms
  • Waves

Readers

  • Calculus or Mathematical Analysis
  • Electrical Engineering