发明名称 |
AN ELEVATOR CONTROL APPARATUS |
摘要 |
An inverter, which supplies an induction motor for driving an elevator with DC power, is controlled by means of a vector control method. A rotating angular speed of the induction motor is detected from a torque component of a detected motor current. A present position of an elevator cage is calculated on the basis of the detected rotating angular speed. |
申请公布号 |
HK2691(A) |
申请公布日期 |
1991.01.18 |
申请号 |
HK19910000026 |
申请日期 |
1991.01.10 |
申请人 |
HITACHI, LTD. |
发明人 |
TOSHISUKE MINE;HIDEAKI TAKAHASHI;NOBORU ARABORI;KATSU KOMURO;HIROMI INABA |
分类号 |
B66B3/02;B66B1/06;B66B1/30;H02P27/06;(IPC1-7):B66B1/30 |
主分类号 |
B66B3/02 |
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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