Title:
電気機器
Document Type and Number:
Japanese Patent JP6878162
Kind Code:
B2
Abstract:
To prevent leakage current of a frequency which is an integral multiple of a rotational frequency of a rotary machine from occurring in the rotary machine with a simple configuration.SOLUTION: A first power converter 4 drives a first rotary machine 2 with a first modulation system. A second power converter 5 drives a second rotary machine 3 with a second modulation system. A control device 11 generates a first modulation signal used by the first modulation system and a second modulation signal used by the second modulation system. The first modulation system and the second modulation system are modulation systems which generate line voltage the same as that of a three-phase modulation system. Common mode voltage of the second rotary machine 3 has integral multiple components which are components of a frequency which is an integral multiple of a rotational frequency of the second rotary machine 3. The control device 11 has a superimposition mode which is a control mode of including a superimposition component periodically changing in a phase reverse to the integral multiple component in the first modulation signal.SELECTED DRAWING: Figure 1
Inventors:
Atsushi Morimoto
Application Number:
JP2017117587A
Publication Date:
May 26, 2021
Filing Date:
June 15, 2017
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H02P5/46; H02M7/48
Domestic Patent References:
| JP2005143216A | ||||
| JP2006217673A | ||||
| JP2001211653A | ||||
| JP2008286498A | ||||
| JP2012165487A | ||||
| JP8336284A | ||||
| JP2015006093A |
Foreign References:
| WO2016051740A1 |
Attorney, Agent or Firm:
Koichi Kamata
Junichiro Kojima
Junichiro Kojima