Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque
Abstract
A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.
- Inventors:
- Issue Date:
- Research Org.:
- Baldor Electric Company, Fort Smith, AK (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1162106
- Patent Number(s):
- 8872465
- Application Number:
- 13/787,216
- Assignee:
- Baldor Electric Company (Fort Smith, AK)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
- DOE Contract Number:
- FG36-08GO18132
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Mar 06
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Umans, Stephen D, Nisley, Donald L, and Melfi, Michael J. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque. United States: N. p., 2014.
Web.
Umans, Stephen D, Nisley, Donald L, & Melfi, Michael J. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque. United States.
Umans, Stephen D, Nisley, Donald L, and Melfi, Michael J. Tue .
"Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque". United States. https://www.osti.gov/servlets/purl/1162106.
@article{osti_1162106,
title = {Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque},
author = {Umans, Stephen D and Nisley, Donald L and Melfi, Michael J},
abstractNote = {A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 28 00:00:00 EDT 2014},
month = {Tue Oct 28 00:00:00 EDT 2014}
}
Works referenced in this record:
Dry fluid drive and rotor therefor
patent, October 1978
- Nisley, Donald L.
- US Patent Document 4,120,388
Soft start coupling
patent, November 1990
- Annacchino, Marc A.; Walcott, Wayne
- US Patent Document 4,967,887
Method of fabricating a rotor for an electric motor
patent, June 1998
- Boyd, Jr., John H.
- US Patent Document 5,758,709
Conveying apparatus
patent-application, February 2004
- Fukuoka, Mitsuhiro
- US Patent Application 10/647802; 20040035684