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Patent Searching and Data


Title:
CONTROL DEVICE FOR HYBRID WORK MACHINERY
Document Type and Number:
WIPO Patent Application WO/2010/131644
Kind Code:
A1
Abstract:
Provided is a control device for hybrid work machinery, whereby the degree of freedom in disposing necessary components is increased and the size of the hybrid work machinery is decreased. A first power conversion unit (14) is connected to a generator (6), and a second power conversion unit (16) that is connected to the first power conversion unit (14) controls, together with the first power conversion unit (14), the power to a rotary motor (10). The first power conversion unit (14) has: upper arms (26U, 28U, 30U) which each have two diodes, the anodes of which are connected in series; and lower arms (26D, 28D, 30D) which are connected to the upper arms in series and each have two diodes, the cathodes of which are connected in series. The emitters of IGBTs (36, 46, 48) are connected to the junctions where anodes are connected to each other in the upper arms (26U, 28U, 30U), and the collectors of said IGBTs are connected to the junctions where cathodes are connected to each other in the lower arms (26D, 28D, 30D). The IGBTs (36, 46, 48) turn on when the gates thereof are supplied with a control signal. The different phases of the generator (6) are connected to the junctions where the upper arms (26U, 28U, 30U) are connected to the lower arms (26D, 28D, 30D).

Inventors:
NAKAMURA KAZUHITO (JP)
YAMAMOTO KOSAI (JP)
Application Number:
PCT/JP2010/057941
Publication Date:
November 18, 2010
Filing Date:
May 11, 2010
Export Citation:
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Assignee:
NABTESCO CORP (JP)
NAKAMURA KAZUHITO (JP)
YAMAMOTO KOSAI (JP)
International Classes:
H02M5/293; E02F9/20; H02M7/48; H02P9/04
Domestic Patent References:
WO2008123368A12008-10-16
WO2008087689A12008-07-24
WO2007123204A12007-11-01
Foreign References:
JP2006352942A2006-12-28
JP2006115635A2006-04-27
US20050099829A12005-05-12
JP2008167619A2008-07-17
Other References:
J.W. KOLAR ET AL.: "Novel Three-Phase AC-DC-AC Sparse Matrix Converter", APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, 2002. APEC 2002, 2002, pages 777 - 791
Attorney, Agent or Firm:
KIMURA, MASATOSHI (JP)
Masatoshi Kimura (JP)
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Claims: