发明名称 |
Method and apparatus for controlling alternating current motors |
摘要 |
In a method and apparatus for controlling a speed of an AC motor energized by a source of alternating current through a frequency converter, a limiter responsive to input voltage and input current is provided for decreasing a primary frequency at a rate faster than a rate of decrease in a number of revolutions of the motor when the source is interrupted for a short interval and for accelerating the motor with a primary current thereof limited to a predetermined value while maintaining the primary frequency and the primary current in a predetermined relation.
|
申请公布号 |
US4417193(A) |
申请公布日期 |
1983.11.22 |
申请号 |
US19810290195 |
申请日期 |
1981.08.05 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
HIRATA, AKIO |
分类号 |
H02P27/04;H02P7/00;H02P25/04;H02P27/06;(IPC1-7):H02P5/40 |
主分类号 |
H02P27/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|