Torque shudder protection device and method
Abstract
A torque shudder protection device for an induction machine includes a flux command generator for supplying a steady state flux command and a torque shudder detector for supplying a status including a negative status to indicate a lack of torque shudder and a positive status to indicate a presence of torque shudder. A flux adapter uses the steady state flux command and the status to supply a present flux command identical to the steady state flux command for a negative status and different from the steady state flux command for a positive status. A limiter can receive the present flux command, prevent the present flux command from exceeding a predetermined maximum flux command magnitude, and supply the present flux command to a field oriented controller. After determining a critical electrical excitation frequency at which a torque shudder occurs for the induction machine, a flux adjuster can monitor the electrical excitation frequency of the induction machine and adjust a flux command to prevent the monitored electrical excitation frequency from reaching the critical electrical excitation frequency.
- Inventors:
-
- Schenectady, NY
- (Malvern, PA)
- Ballston Lake, NY
- Issue Date:
- Research Org.:
- Ford Motor Company, Detroit, MI (United States)
- OSTI Identifier:
- 870861
- Patent Number(s):
- 5610490
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- DOE Contract Number:
- AC07-90ID13019
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- torque; shudder; protection; device; method; induction; machine; flux; command; generator; supplying; steady; detector; status; including; negative; indicate; lack; positive; presence; adapter; supply; identical; limiter; receive; prevent; exceeding; predetermined; maximum; magnitude; field; oriented; controller; determining; critical; electrical; excitation; frequency; occurs; adjuster; monitor; adjust; monitored; reaching; torque shudder; electrical excitation; excitation frequency; flux command; induction machine; protection device; shudder protection; oriented controller; field oriented; /318/
Citation Formats
King, Robert D, De Doncker, Rik W. A. A., and Szczesny, Paul M. Torque shudder protection device and method. United States: N. p., 1997.
Web.
King, Robert D, De Doncker, Rik W. A. A., & Szczesny, Paul M. Torque shudder protection device and method. United States.
King, Robert D, De Doncker, Rik W. A. A., and Szczesny, Paul M. Wed .
"Torque shudder protection device and method". United States. https://www.osti.gov/servlets/purl/870861.
@article{osti_870861,
title = {Torque shudder protection device and method},
author = {King, Robert D and De Doncker, Rik W. A. A. and Szczesny, Paul M},
abstractNote = {A torque shudder protection device for an induction machine includes a flux command generator for supplying a steady state flux command and a torque shudder detector for supplying a status including a negative status to indicate a lack of torque shudder and a positive status to indicate a presence of torque shudder. A flux adapter uses the steady state flux command and the status to supply a present flux command identical to the steady state flux command for a negative status and different from the steady state flux command for a positive status. A limiter can receive the present flux command, prevent the present flux command from exceeding a predetermined maximum flux command magnitude, and supply the present flux command to a field oriented controller. After determining a critical electrical excitation frequency at which a torque shudder occurs for the induction machine, a flux adjuster can monitor the electrical excitation frequency of the induction machine and adjust a flux command to prevent the monitored electrical excitation frequency from reaching the critical electrical excitation frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}