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Analysis of the influence of converter non-linearities on performance of sensorless controlled synchronous PM machine algorithms
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| Author(s) |
R. Filka; G. M. Asher; P. Wheeler; C. Silva |
| Abstract |
This paper presents a modelling analysis of three-phase converter non-linearities and their effect on
sensorless motor control algorithms. Several factors contributing to converter non-linearities are
investigated and their relative importance for the sensorless algorithm ascertained. The study was
carried out using Saber simulation software, which allows very accurate simulation of the switching
behaviour of the converter. Use of simulation allows the investigation of the importance of individual
factors. The paper shows that the most dominant factors contributing to converter non-linearities are
that of dead-time and device voltage drop. Furthermore different dead-time and voltage drop
compensation strategy are presented. Simulation results prove the necessity of using compensation
strategies to improve the performance of the sensorless control. Experimental results are presented to
illustrate the validity of the analysis. |
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| Filename: | EPE2003-PP0877 - Filka |
| Filesize: | 1.386 MB |
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| Type |
Members Only |
| Date |
Last modified 2003-12-10 by Unknown |
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