Performance Comparison of VSI Switches Faults Analysis Using STFT and S transform
Switches fault in power converter has become compelling issues over the years. To reduce cost and maintenance downtime, a good fault detection technique is an essential. In this paper, the performance of STFT and S transform techniques are analysed and compared for voltage source inverter (VSI) s...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Trans Tech Publications, Switzerland
2015
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/14719/1/2015%20Journal%20AMM%20Performance%20Comparison%20of%20VSI%20Switches%20Faults%20Analysis%20Using%20STFT%20and%20S%20transform.pdf http://eprints.utem.edu.my/id/eprint/14719/ http://www.ttp.net/978-3-03835-512-0/5.html |
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| Summary: | Switches fault in power converter has become compelling issues over the years. To
reduce cost and maintenance downtime, a good fault detection technique is an essential. In this
paper, the performance of STFT and S transform techniques are analysed and compared for voltage
source inverter (VSI) switches faults. The signal from phase current is represented in jointly timefrequency
representation (TFR) to estimate signal parameters and characteristics. Then, the degree
of accuracy for both STFT and S transform are determined by the lowest value of mean absolute
percentage error (MAPE). The results demonstrate that S transform gives better accuracy compare
to STFT and is suitable for VSI switches faults detection and identification system. |
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