Correction of operating condition of a variable-frequency electric drive with a non-linear and asymmetric induction motor
Authors:
- 1 July 2013
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1033-1037
Abstract
The necessity for compensation for induction motor three-phase active power and electromagnetic torque oscillating components caused by its asymmetry and nonlinearity is grounded. A method of these components compensation by means of variable-frequency electric drive is offered. Expressions for determination of corrective voltage for compensation for oscillating components of three-phase instantaneous active power and electromagnetic torque are substantiated. The efficiency of the offered method is demonstrated on the basis of the results of modeling the operation of variable-frequency electric drive with an asymmetric induction motor. It is shown that the application of this method additionally results in decrease of thermal overload at particular phases.Keywords
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