Title:
DRIVE SYSTEM OF SYNCHRONOUS MOTOR
Document Type and Number:
WIPO Patent Application WO/2002/091559
Kind Code:
A1
Abstract:
A control device for a synchronous motor is provided with a voltage instruction operator for operating voltage instructions Vdc*, Vqc* to the motor on coordinate axes dc-qc based on an estimation magnetic pole axis. The voltage instruction is operated by using a q-axis current instruction prepared based on a motor constant parameter, a revolution speed instruction, a d-axis current instruction and a current detection value. An induction voltage constant compensator is also provided that regulates the internal parameter of the motor's induction voltage constant so as to allow a d-axis current detection value to agree with a d-axis current instruction.
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Inventors:
SAKAMOTO KIYOSHI (JP)
IWAJI YOSHITAKA (JP)
ENDO TSUNEHIRO (JP)
YAMADA NORIAKI (JP)
FUJII HIROSHI (JP)
IWAJI YOSHITAKA (JP)
ENDO TSUNEHIRO (JP)
YAMADA NORIAKI (JP)
FUJII HIROSHI (JP)
Application Number:
PCT/JP2002/004487
Publication Date:
November 14, 2002
Filing Date:
May 08, 2002
Export Citation:
Assignee:
HITACHI LTD (JP)
SAKAMOTO KIYOSHI (JP)
IWAJI YOSHITAKA (JP)
ENDO TSUNEHIRO (JP)
YAMADA NORIAKI (JP)
FUJII HIROSHI (JP)
SAKAMOTO KIYOSHI (JP)
IWAJI YOSHITAKA (JP)
ENDO TSUNEHIRO (JP)
YAMADA NORIAKI (JP)
FUJII HIROSHI (JP)
International Classes:
H02P6/18; H02P6/06; H02P6/08; H02P6/182; H02P21/00; H02P27/04; H02P27/08; (IPC1-7): H02P6/18
Foreign References:
| JP2002199776A | 2002-07-12 | |||
| JP2001268974A | 2001-09-28 | |||
| EP0944164A1 | 1999-09-22 |
Attorney, Agent or Firm:
Ogawa, Katsuo (Yusenkayabacho Building 9-8,
Nihonbashi-kayabacho 2-chom, Chuo-ku Tokyo, JP)
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