Title:
鉄道車両用電力変換装置
Document Type and Number:
Japanese Patent JP4850395
Kind Code:
B2
Abstract:
The invention provides a power converter system for a railway vehicle that is adapted both for a track circuit using the commercial power supply and a track circuit using a high-frequency alternating-current power supply without increasing the number of filter circuits and the weight of the filter circuit. In a power converter system 1 for a railway vehicle including: an LC filter circuit composed of a filter reactor 11 and a filter capacitor 12 and connected to a current collector 21 that receives a direct-current voltage; and an inverter device 13 that receives the received direct-current voltage via the LC filter circuit and converts the direct-current voltage into an alternating-current voltage for driving an alternating-current motor 22, an impedance-increasing filter circuit 14 that is composed of a resistor 141, a reactor 142 and a capacitor 143 connected in series to each other and increases the input impedance of the power converter system at a power-supply frequency of an alternating-current power supply, which is a source of the direct-current voltage, is connected in parallel with the LC filter circuit, and the resonant frequency of a resonant circuit composed of the filter circuit 14 and the LC filter circuit matches with the frequency of the alternating-current power supply.
Inventors:
Satoshi Inarida
Hiroshi Ogawara
Hiroshi Ogawara
Application Number:
JP2004178114A
Publication Date:
January 11, 2012
Filing Date:
June 16, 2004
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02M7/48; B60L9/18; B60L9/30; H02M1/14
Domestic Patent References:
| JP7274525A | ||||
| JP56110406A | ||||
| JP2001301621A | ||||
| JP2000092862A | ||||
| JP2004072984A | ||||
| JP62250893A | ||||
| JP2125549U |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office