发明名称 |
SETT OCH ANORDNING FOR HASTIGHETSREGLERING AV EN VEXELSTROMSMOTOR |
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 |
SE8105093(L) |
申请公布日期 |
1982.03.01 |
申请号 |
SE19810005093 |
申请日期 |
1981.08.28 |
申请人 |
TOKYO SHIBAURA ELECTRIC CO |
发明人 |
HIRATA A |
分类号 |
H02P27/04;H02P7/00;H02P25/04;H02P27/06;(IPC1-7):H02P7/00;H02P7/42 |
主分类号 |
H02P27/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|