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Article: Noise analysis of dc-ac random PWM schemes

TitleNoise analysis of dc-ac random PWM schemes
Authors
KeywordsDigital Signal Processing
Electric Inverters
Harmonic Analysis
Pulse Width Modulation
Spectrum Analysis
Issue Date1999
PublisherIEEE
Citation
Ieee Transactions On Power Electronics, 1999, v. 14 n. 4, p. 761-770 How to Cite?
AbstractRandom pulsewidth modulation (RPWM) techniques for dc-ac power converters usually work well with high-sampling frequency. When RPWM schemes are implemented in digital signal processors (DSP's), the sampling frequency is limited by the speed of the processors. This paper analyzes the noise spectrum of various DSP-implemented RPWM techniques using a statistical approach. The relationship of the noise components and the sampling frequency for both the standard RPWM and the weighted RPWM methods is generalized. The dependency of the noise characteristics on various factors is calculated theoretically and verified experimentally. The generalized noise theory for randomized PWM switching provides useful practical guidelines to the choice of sampling frequency.
Persistent Identifierhttp://hdl.handle.net/10722/136856
ISSN
2015 Impact Factor: 4.953
2015 SCImago Journal Rankings: 3.005
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorShrivastava, Yen_HK
dc.contributor.authorHui, SYen_HK
dc.contributor.authorSathiakumar, Sen_HK
dc.date.accessioned2011-07-29T02:13:10Z-
dc.date.available2011-07-29T02:13:10Z-
dc.date.issued1999en_HK
dc.identifier.citationIeee Transactions On Power Electronics, 1999, v. 14 n. 4, p. 761-770en_HK
dc.identifier.issn0885-8993en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136856-
dc.description.abstractRandom pulsewidth modulation (RPWM) techniques for dc-ac power converters usually work well with high-sampling frequency. When RPWM schemes are implemented in digital signal processors (DSP's), the sampling frequency is limited by the speed of the processors. This paper analyzes the noise spectrum of various DSP-implemented RPWM techniques using a statistical approach. The relationship of the noise components and the sampling frequency for both the standard RPWM and the weighted RPWM methods is generalized. The dependency of the noise characteristics on various factors is calculated theoretically and verified experimentally. The generalized noise theory for randomized PWM switching provides useful practical guidelines to the choice of sampling frequency.en_HK
dc.languageengen_US
dc.publisherIEEEen_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_HK
dc.subjectDigital Signal Processingen_US
dc.subjectElectric Invertersen_US
dc.subjectHarmonic Analysisen_US
dc.subjectPulse Width Modulationen_US
dc.subjectSpectrum Analysisen_US
dc.titleNoise analysis of dc-ac random PWM schemesen_HK
dc.typeArticleen_HK
dc.identifier.emailHui, SY:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SY=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/63.774216en_HK
dc.identifier.scopuseid_2-s2.0-0033153982en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033153982&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue4en_HK
dc.identifier.spage761en_HK
dc.identifier.epage770en_HK
dc.identifier.isiWOS:000081321700019-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridShrivastava, Y=7004459476en_HK
dc.identifier.scopusauthoridHui, SY=7202831744en_HK
dc.identifier.scopusauthoridSathiakumar, S=7004497631en_HK

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