发明名称 |
DEVICE AND METHOD FOR CONTROLLING MOTOR |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and a method for controlling a motor capable of quickly generating a PWM signal. <P>SOLUTION: The controller has a neutral-point voltage adding section 107 practicing a two-phase modulation fixing the duty ratio of one phase of an inverter 1 in 0% or 100% in a certain phase. The neutral-point voltage adding section 107 has a phase decision section 1071 deciding the maximum phase Vmax<SB>-</SB>phase and the minimum phase Vmin<SB>-</SB>phase of a voltage command value in three-phase voltage command values vu<SP>*</SP>"V", vv<SP>*</SP>"V" and vw<SP>*</SP>"V". The neutral-point voltage adding section 107 further has a comparison section 1072 comparing the absolute value ¾I(Vmax<SB>-</SB>phase)¾"A" of the current value of the maximum phase Vmax<SB>-</SB>phase and the absolute value ¾I(Vmin<SB>-</SB>phase)¾"A" of the current value of the minimum phase Vmin<SB>-</SB>phase. The neutral-point voltage adding section 107 further has an arithmetic section 1073 arithmetically operating a neutral-point voltage Vc on the basis of the result of the comparison of the comparison section 1072. <P>COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2009100587(A) |
申请公布日期 |
2009.05.07 |
申请号 |
JP20070270952 |
申请日期 |
2007.10.18 |
申请人 |
NISSAN MOTOR CO LTD |
发明人 |
TAKEYAMA YASUSHI;KARIKOMI TAKAAKI |
分类号 |
H02P27/08;H02M7/48;H02P21/00;H02P27/04;H02P27/06 |
主分类号 |
H02P27/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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