Fault-tolerance of induction drives
Abstract
The short review of known methods of realizing the fault-tolerant function is presented. A new drive control principle of implementing fault-tolerant function is proposed on the basis of analysis of available resources of the drive system. Novel control algorithms of induction drive are developed, and engineering solutions for the implementation are suggested.
To verify the presented control algorithms including the fault-tolerant function a special mathematical model of induction drive is developed. This model can be applied to induction motors of linear and rotary type. In the paper presents simulation results of the normal and some emergency modes that confirm efficiency of the proposed principles.
In conclusion the analysis of the drive characteristics is carried out and the possibility of recovery in the emergency operating mode is shown. In addition the authors present the guidelines for design of induction drives with fault-tolerant concept as well as the areas of further research.
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