发明名称 |
Method of controlling motor drive speed |
摘要 |
Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase voltage and phase current applied to the motor; determining whether or not the motor is operating in overload conditions based on the detected phase voltage and phase current; and controlling the motor according to whether or not the motor is operating in overload conditions. Accordingly, the present invention can prevent occurrence of over-current due to the instantaneous acceleration of the motor to a predetermined initial speed.
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申请公布号 |
US7259533(B2) |
申请公布日期 |
2007.08.21 |
申请号 |
US20050266353 |
申请日期 |
2005.11.04 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
YANG SOON-BAE;KIM TAE-KYUNG;PARK SUNG-MIN;KIM TAE-WON |
分类号 |
F04B49/06;F04B49/12;H02P7/00 |
主分类号 |
F04B49/06 |
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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