Title:
PULSE-PATTERN GENERATING CONFIGURATION FOR THREE-PHASE CURRENT TYPE POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2011/037011
Kind Code:
A1
Abstract:
Provided is a pulse-pattern generating configuration for a three-phase current type power converter, wherein switching loss can be minimized regardless of whether the power factor is high or low, and power conversion efficiency can thereby be improved. When a phase (U phase) not having the maximum line voltage matches a phase (U phase) having the maximum line current command value, a separating time (T1) is provided so that switching pulses for two phases (V phase and W phase) that are not the phase having the maximum line current command value are separated temporally, and a short-circuiting pulse (SP) is arranged for the phase (U phase) having the maximum line current command value, within one modulation cycle (T). Meanwhile, when a phase (V phase or W phase) not having the maximum line voltage does not match the phase (U phase) having the maximum line current command value, switching pulses for the two phases (V phase and W phase) that are not the phase having the maximum line current command value are provided temporally adjacent to each other, and a short-circuiting pulse (SP) is arranged for the phase (V phase or W phase) not having the maximum line voltage, or for the phase (U phase) having the maximum line current command value, within one modulation cycle (T).
Inventors:
MOTEGI SHINICHI (JP)
Application Number:
PCT/JP2010/065378
Publication Date:
March 31, 2011
Filing Date:
September 08, 2010
Export Citation:
Assignee:
YANMAR CO LTD (JP)
MOTEGI SHINICHI (JP)
MOTEGI SHINICHI (JP)
International Classes:
H02M7/48
Foreign References:
| JP2008312367A | 2008-12-25 | |||
| JP2002125377A | 2002-04-26 | |||
| JP2001008458A | 2001-01-12 |
Other References:
NISHIDA; A. MAEDA: "A Simplified Discontinuous-Switching-Modulation for Three-Phase Current source PFC-Converters and Experimental Study for the Effects", PROC. IEEE APEC '96, vol. 2, 1996, pages 552 - 558
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
Patent business corporation ARC PATENT ATTORNEYS' OFFICE (JP)
Patent business corporation ARC PATENT ATTORNEYS' OFFICE (JP)
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