Graduate Thesis Or Dissertation

 

A voltage regulated SCR inverter utilizing conduction angle control Public Deposited

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  • Inverter utilizing conduction angle control
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  • This paper describes an inverter design which provides voltage regulation against variations in both the input voltage and load impedance. This design modifies the so-called parallel inverter, which consists of two silicon controlled rectifiers (SCRs) operating in a push-pull arrangement, to include a third regulating SCR. This regulating SCR is controlled by a small self-saturating magnetic amplifier which is driven by a low-voltage winding of the inverter output transformer. The regulating SCR reduces the conduction angle of each of the parallel-connected SCRs to something less than the normal 180° conduction angle in order to maintain the output voltage constant. The regulating circuitry also reduces the harmonic distortion of the output waveform. Mathematical equations are given which relate the harmonic content of the output waveform to the conduction angle. Circuitry is incorporated into the design to feed back reactive energy associated with the commutating elements to the dc source. This circuitry results in a considerable increase in efficiency, particularly under light load conditions. Waveforms of the various circuit voltages and currents are plotted on the same time base to clarify the regulating mode. Curves are plotted of the output voltage, efficiency and percent harmonic distortion as a function of the load and the input voltage.
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  • File scanned at 300 ppi using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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  • description.provenance : Rejected by Patricia Black(patricia.black@oregonstate.edu), reason: Replace on 2014-04-10T13:57:31Z (GMT)
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  • description.provenance : Submitted by Alex McFerrin (amscannerosu@gmail.com) on 2014-04-10T14:00:36Z No. of bitstreams: 1 SkaarDonaldL1967_Redacted.pdf: 1051981 bytes, checksum: 74eb4a9b429a8c31806fc1717d1ae864 (MD5)
  • description.provenance : Made available in DSpace on 2014-04-18T16:37:21Z (GMT). No. of bitstreams: 1 SkaarDonaldL1967_Redacted.pdf: 1051981 bytes, checksum: 74eb4a9b429a8c31806fc1717d1ae864 (MD5) Previous issue date: 1966-11-04

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