Title:
同期機起動装置
Document Type and Number:
Japanese Patent JP5427189
Kind Code:
B2
Abstract:
In a synchronous machine starting device, an AC voltage detection unit (8) detects AC voltage supplied to an armature of a synchronous machine (4) through an electric power line (LN) from a power conversion unit (71). The AC voltage detection unit (8) has a first output end and a second output end isolated from the electric power line (LN), transforms AC voltage supplied through the electric power line (LN) at a first ratio to output the transformed voltage from the first output end, and transforms AC voltage supplied through the electric power line (LN) at a second ratio and then limits the transformed voltage to a prescribed positive voltage value or lower and a prescribed negative voltage value or higher for output from the second output end. Then, a detected voltage selection unit (51) selects one of the voltage received from the first output end and the voltage received from the second output end, and outputs the selected one to a rotor position detection unit (11). The rotor position detection unit (11) detects a rotor position of the synchronous machine (4) based on the voltage received from the detected voltage selection unit (51). A power conversion control unit (19) controls the power conversion unit (71) based on the detected rotor position.
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Inventors:
Shinzo Tamai
Yosuke Fujii
Akira Ando
Yasuhiko Hosokawa
Yosuke Fujii
Akira Ando
Yasuhiko Hosokawa
Application Number:
JP2010541177A
Publication Date:
February 26, 2014
Filing Date:
December 05, 2008
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
H02P1/52
Domestic Patent References:
| JP2006271038A | 2006-10-05 | |||
| JP2001054295A | 2001-02-23 | |||
| JPH01206894A | 1989-08-21 | |||
| JP2002281795A | 2002-09-27 | |||
| JPS58186397A | 1983-10-31 | |||
| JP2006271038A | 2006-10-05 | |||
| JP2001054295A | 2001-02-23 | |||
| JPH01206894A | 1989-08-21 | |||
| JP2002281795A | 2002-09-27 | |||
| JPS58186397A | 1983-10-31 |
Attorney, Agent or Firm:
Fukami patent office