Control Systems for Ultra-High Rise Elevators

[+] Author and Article Information
S. R. Venkatesh

Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 35-407, Cambridge, MA 02139-4307e-mail: srv@mit.edu

Y. M. Cho

Seoul National University, Institute of Advanced Machinery and Design, San 56-1, Shilim-dong, Kwanak-gu, Seoul, 151-742, Koreae-mail: choym@gong.snu.ac.kr

J. Dyn. Sys., Meas., Control 123(4), 687-690 (Apr 15, 1998) (4 pages) doi:10.1115/1.1410930 History: Received April 15, 1998
Copyright © 2001 by ASME
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Roberts, R., 1998, “Control of high-rise/high-speed elevators,” Proceedings of the 1998 American Control Conference, Philadelphia, PA.
Venkatesh, S. R., and Cho, Y. M., 1998, “Identification and control of high rise elevators,” Proceedings of the American Control Conference, Philadelphia, PA.
Li, J., Niemann, D., and Wang, H. O., 1998, “Robust tracking of high rise high speed elevators,” Proceedings of the American Control Conference, Philadelphia, PA.
Chi, R. M., and Shu, H. T., 1991, “Longitudinal vibration of a hoist rope coupled with the vertical vibration of an elevator car,” J. Sound Vib.
Zhou, K., Doyle, J., and Glover, K., 1996, Robust and Optimal Control, Prentice Hall Englewood Cliffs, NJ.
Johansson, M., and Rantzer, A., 1998, “Computation of piecewise quadratic lyapunov functions for hybrid systems,” IEEE Trans. Autom. Control.


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Model validation results with sinusoidal (dots) and random inputs (dashed) for the elevator system
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LFT setup for control design
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Torque to car position rope degradation
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Elevator releveling and ride quality robustness validation
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Phase plot of car position and car velocity; level curves (dashed); trajectory (solid)



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