发明名称 |
Control method and control device of motor inverter |
摘要 |
A motor inverter is provided with switching elements for each phase of a 3-phase motor, and driving the motor by turning on and off the switching elements. In an example of a control device of the motor inverter, the control device includes: a stationary phase determination unit for defining a phase in a plurality of phases provided with switching elements for each area as a stationary phase in which a switching operation is not performed, based on current command value of each phase acquired from d-axis current command value and q-axis current command value of the motor, with one rotation in electrical angle of a rotor of the motor divided into a plurality of areas; and a drive unit for performing the switching operation of switching elements of the phases other than the stationary phase determined for each area to perform, and realizing 2-phase modulation control. |
申请公布号 |
US8847541(B2) |
申请公布日期 |
2014.09.30 |
申请号 |
US201213424850 |
申请日期 |
2012.03.20 |
申请人 |
Kabushiki Kaisha Toyota Jidoshokki |
发明人 |
Mizuguchi Daiki;Ikeda Shigeki;Sakata Seiki |
分类号 |
H02P27/04;H02P27/06;H02P21/06 |
主分类号 |
H02P27/04 |
代理机构 |
Sughrue Mion, PLLC |
代理人 |
Sughrue Mion, PLLC |
主权项 |
1. A control method of a motor inverter which having switching elements for each phase of the 3-phase motor and driving the motor by turning on and off the switching elements, comprising:
dividing one rotation in electrical angle of a rotor of the motor into a plurality of areas, and defining a phase in a plurality of phases provided with switching elements for each area as a stationary phase in which a switching operation is not performed, based on current command value of each phase acquired from d-axis current command value and q-axis current command value of the motor; and performing the switching operation of the switching elements of phases other than the stationary phase determined for each area, thereby realizing the 2-phase modulation control, wherein the stationary phase is determined after determining candidate phases as possible stationary phase depending on a voltage command value of each phase, and selecting a candidate phase from among determined candidate phases depending on the current command value of each phase. |
地址 |
Aichi JP |