Title:
DRIVE SYSTEM OF SYNCHRONIZED ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2012/029451
Kind Code:
A1
Abstract:
Provided is a drive system of a synchronized electric motor that is capable of driving at speeds near zero. An electricity supply mode determination apparatus (9) detects either an electricity non-supply phase terminal potential of a three-phase synchronized electric motor (4) or a stator coil connection point potential (neutral point potential) of the three-phase synchronized transmitter, and sequentially switches among six electricity supply modes on the basis of the detected value of the potential. In order to supply repeating waveforms of three types of voltage to the synchronized electric motor, said three types of voltage being a positive polarity pulse voltage that causes the synchronized electric motor to generate a positive rotation torque, an inverse pulse voltage that causes the synchronized electric motor to generate an inverse rotation torque, and a zero voltage, as line voltage waveforms of electricity supply phase in each of the six electricity supply modes, a voltage instruction compensator apparatus (8) uses a degree of compensation ΔV to compensate for a voltage instruction that is applied to the synchronized electric motor. The electricity supply phase line voltage is applied to the synchronized electric motor.
Inventors:
IWAJI YOSHITAKA (JP)
AOYAGI SHIGEHISA (JP)
TOBARI KAZUAKI (JP)
TAKAHATA RYOICHI (JP)
AOYAGI SHIGEHISA (JP)
TOBARI KAZUAKI (JP)
TAKAHATA RYOICHI (JP)
Application Number:
PCT/JP2011/067002
Publication Date:
March 08, 2012
Filing Date:
July 26, 2011
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
HITACHI CAR ENG CO LTD (JP)
IWAJI YOSHITAKA (JP)
AOYAGI SHIGEHISA (JP)
TOBARI KAZUAKI (JP)
TAKAHATA RYOICHI (JP)
HITACHI CAR ENG CO LTD (JP)
IWAJI YOSHITAKA (JP)
AOYAGI SHIGEHISA (JP)
TOBARI KAZUAKI (JP)
TAKAHATA RYOICHI (JP)
International Classes:
H02P6/06; H02P6/18; H02P6/08; H02P6/182
Foreign References:
| JP2009189176A | 2009-08-20 | |||
| JP2009278788A | 2009-11-26 | |||
| JP2009189176A | 2009-08-20 |
Other References:
See also references of EP 2613435A4
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
Kasuga 讓 (JP)
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Claims:
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