Stability Analysis of Induction Motor Drives Using Phase-Locked Loop Control System
- 1 August 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industrial Electronics and Control Instrumentation
- Vol. IECI-27 (3), 147-155
- https://doi.org/10.1109/tieci.1980.351668
Abstract
This paper presents the analysis of an induction motor drive using a phase-locked loop speed control system. A linear continuous model of the drive is developed and the system response is analysed using conventional root locus techniques. Various compensating ``filters'' and feedback signals are considered and the need for addition of derivative feedback is shown. A sampled data model is used to study the effects of discrete phase detector output. Stability limits on speed are predicted. A drive was implemented and experimental results are presented to verify theoretical predictions.Keywords
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