Title page for ETD etd-01292001-165814


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
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  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

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