发明名称 |
Inverter control device for driving an elevator |
摘要 |
An inverter control device for controlling an induction motor that drives elevators, has two induction motor coils that are electrically separate with inverters connected to each coil, and a control device that controls these two inverters with the same current command. The preferred structure is one where one control system outputs one current command to two inverters, the inverter control device has two separate control systems that divide one current command and output each half to the respective inverter and one carrier circuit that modulates each control system at the same timing, or two separate converters are connected to the power element of the respective inverters.
|
申请公布号 |
US5130617(A) |
申请公布日期 |
1992.07.14 |
申请号 |
US19910636858 |
申请日期 |
1991.01.02 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
OSHIMA, KENJI;KITO, YASUTAMI |
分类号 |
B66B1/30;B66B1/28;B66B1/34;H02M7/48;H02P27/06 |
主分类号 |
B66B1/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|