Accession Number : ADA130337

Title :   Low-Input-Harmonics Power Supplies.

Descriptive Note : Final contractor rept. on Phase 1,


Personal Author(s) : Hu,Chenming

PDF Url : ADA130337

Report Date : Oct 1982

Pagination or Media Count : 55

Abstract : This final report covers Phase I of the project. All three objectives have been successfully accomplished. They are (a) construction of a low-input-harmonics converter, (b) characterization of the input current harmonics, and (c) theoretical analysis of the input harmonics and other performances of the novel converter. Specifically, it has been shown that the 3% harmonics requirement can be met without the use of low frequency filters or phase-shifting transformers. This circuit can not perform ac to dc conversion. Pending continued funding of Phase II of this project, a 3-phase ac to dc power converter will be demonstrated. A new circuit having even lower input harmonics and much lower switching frequency noises than the circuit reported here will be constructed and characterized. Harmonics contents and stability of the power supply will be thoroughly studied. (Author)

Descriptors :   *Harmonics, *Power supplies, *Frequency converters, Low level, Input, Circuits, Alternating current, Direct current, Waveforms, Stability, Pulse modulation, Switching circuits, Charts, Algorithms, Equations

Subject Categories : Electrical and Electronic Equipment
      Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE