发明名称 |
Motor drive apparatus, electric actuator and electric power steering apparatus |
摘要 |
In an operation range of an actuator subjected to quick acceleration and deceleration, a motor drive apparatus, an electric actuator and an electric power steering apparatus capable of continuous torque control up to the high drive speed and high torque area. A controller comprises a voltage saturation detecting means for detecting the voltage saturation of the output voltage of an inverter circuit, based on the battery voltage, and a waveform controller that converts the drive waveform of the inverter circuit into the waveform created by superimposing harmonics of high odd-numbered order on a sinusoidal wave as a fundamental wave of the modulated wave modulated by a PWN carrier wave; and continuously changes the ratio of superimposing the high-order harmonics in response to the voltage saturation detected by a voltage saturation detecting means. This arrangement allows the controller to continuously change the drive waveform of the inverter circuit.
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申请公布号 |
US2006001392(A1) |
申请公布日期 |
2006.01.05 |
申请号 |
US20050158247 |
申请日期 |
2005.06.22 |
申请人 |
AJIMA TOSHIYUKI;MIYAZAKI HIDEKI;KANEKO SATORU;TAKAMUNE YUUICHIROU |
发明人 |
AJIMA TOSHIYUKI;MIYAZAKI HIDEKI;KANEKO SATORU;TAKAMUNE YUUICHIROU |
分类号 |
H02P7/00 |
主分类号 |
H02P7/00 |
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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