Zero-voltage soft-switched PDM three phase AC-DC active power converter operating at unity power factor and sinewave line current
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| Title | Zero-voltage soft-switched PDM three phase AC-DC active power converter operating at unity power factor and sinewave line current |
| Publication Type | Conference Paper |
| Year of Publication | 1993 |
| Authors | Nakaoka M, Yonemori H, Yurugi K |
| Conference Name | Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE |
| ISBN Number | VO - |
| Keywords | AC-DC power converters, AC-DC power convertors, active clamped resonant DC link, active power converter, control, Current control, digital control, Digital modulation, Digital signal processing, digital signal processor, Digital signal processors, electric current control, inductive load conditions, operating principle, performance evaluations, power engineering computing, power factor correction, Process control, pulse density modulation, Pulse modulation, Pulse shaping methods, Resonance, Shape control, simulation, sinewave line current, sinewave line current shaping, switching circuits, three-phase AC-DC converter, unity power factor, Voltage control, zero voltage soft switching |
| Abstract | This paper is concerned with a newly improved version of the pulse density modulation (PDM) three-phase AC-DC converter including an active clamped resonant DC link (ACRDCL) and its digital signal processor (DSP) control strategy to achieve a unity power factor correction and sinewave line current shaping. The operating principle of the zero-voltage soft-switched three-phase AC-DC converter using ACRDCL under the control scheme of an instantaneous space voltage vector-based clamping-voltage distributed PDM (modified-PDM) scheme to improve its control response and operating performances is illustrated. Performance evaluations are discussed using simulation and experimental results, and a comparison with the conventional PDM converter is given. The experimental results of this active converter are shown from a practical point of view. Finally, the utility-interfaced ACRDCL double-converter system operating under the DSP controlled modified-PDM strategy is illustrated and evaluated by using simulation results under inductive load conditions |
| DOI | 10.1109/PESC.1993.472013 |
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