Title:
【発明の名称】スリップリング非同期機械の速度を評価する装置及び方法
Document Type and Number:
Japanese Patent JP2003511703
Kind Code:
A
Abstract:
The invention relates to a device and a method for estimating the speed of a slip ring asynchronous machine. The asynchronous machine includes a stator having a stator winding, arranged to be fed with three-phase voltage and current in order to generate a varying magnetic flux, and a rotor having a rotor winding in which the magnetic flux is arranged to induce a voltage to create an electromagnetic torque. The device includes a measuring member arranged to measure the value of the voltage in the rotor winding during at least one time period and a calculating unit, which is arranged, using the above measured voltage, to calculate a value of the rotor speed.
Inventors:
Hansthorn, Lars, Twove
Slutty, Allose
Slutty, Allose
Application Number:
JP2001530596A
Publication Date:
March 25, 2003
Filing Date:
October 12, 2000
Export Citation:
Assignee:
Arbor arbor
International Classes:
G01P3/44; G01P3/48; H02P23/00; H02P27/02; (IPC1-7): G01P3/44; H02P5/28; H02P5/402
Domestic Patent References:
| JPH02271256A | 1990-11-06 |
Foreign References:
| US4078189A | 1978-03-07 |
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)