发明名称 |
Method for determining a rotor position in a permanent magnet motor |
摘要 |
A method for determining the position of a rotor in a permanent magnet synchronous motor includes applying voltage pulses to the windings at successive electrical angles while the motor is at a standstill. The resultant current is sampled. The position of a maximum current is determined by identifying an segment of an electrical cycles which includes the maximum current, and using a spline interpolation to model the current flow in this segment. The maximum current is then correlated to the position of the rotor. |
申请公布号 |
US8324851(B2) |
申请公布日期 |
2012.12.04 |
申请号 |
US20090397413 |
申请日期 |
2009.03.04 |
申请人 |
MATSUO TAKAYOSHI;REHM THOMAS J.;ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
MATSUO TAKAYOSHI;REHM THOMAS J. |
分类号 |
H02P1/04 |
主分类号 |
H02P1/04 |
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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