| Type of Document |
Master's Thesis |
| Author |
Gurian, Sanford
|
| Author's Email Address |
hspsg@infi.net |
| URN |
etd-01292001-165814 |
| Title |
Resonance Compensation of Large AC Drivetrains with Significant Time Lag |
| Degree |
Master of Science |
| Department |
Electrical and Computer Engineering |
| Advisory Committee |
| Advisor Name |
Title |
| Baumann, William T. |
Committee Chair |
| Moose, Richard L. |
Committee Member |
| VanLandingham, Hugh F. |
Committee Member |
|
| Keywords |
- rolling mills
- control systems
- resonance compensation
- AC drives
|
| Date of Defense |
2001-02-02 |
| Availability |
unrestricted |
Abstract
AC main drives, such as cycloconverters, offer the possibility of higher speed and torque response over their DC counterparts. The price to be paid, however, is torque ripple which is a function of the operating frequency. Even a small value of ripple, at an underdamped plant resonant frequency, may be multiplied by the plant "Q" to a large enough value to cause trouble. Typical classical approaches used in the rolling mill industry to deal with mechanical resonance tend to fall apart with large values of time lag. We investigate a modified LQR/LQE approach using a torque sensor as the feedback element. The result is a low order SISO filter that suppresses the effects of the torque ripple on the underdamped plant.
|
| Files |
| Filename |
Size |
Approximate Download Time
(Hours:Minutes:Seconds)
|
| 28.8 Modem |
56K Modem |
ISDN (64 Kb) |
ISDN (128 Kb) |
Higher-speed Access |
| |
SGTHESIS.pdf |
1.66 Mb |
00:07:42 |
00:03:57 |
00:03:28 |
00:01:44 |
00:00:08 |
| |
SGTHESIS.pdf |
1.66 Mb |
00:07:42 |
00:03:57 |
00:03:28 |
00:01:44 |
00:00:08 |
| |
SGTHESIS.pdf |
1.66 Mb |
00:07:42 |
00:03:57 |
00:03:28 |
00:01:44 |
00:00:08 |
|
