Abstract
We propose a new frequency response estimation method in order to guarantee a pre-specified phase angle of the estimated model under static disturbance circumstances with rejecting harmonics completely. The proposed method uses one cycle of the conventional relay feedback signal followed by a sinusoidal signal. The sinusoidal signal in a cyclic steady state has no harmonics, resulting in exact frequency response estimates. Also, it guarantees the pre-specified phase angle and removes the effects of static disturbances by adjusting the reference value of the sinusoidal signal.
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References
K. J. Åström and T. Hägglund, Automatica, 20, 645 (1984).
C. C. Hang, K. J. Åström and Q.G. Wang, Journal of Process Control, 12, 143 (2002).
S. Shen, J. Wu and C. Yu, AIChE J., 42, 1174 (1996a).
S.W. Sung, J.H. Park and I. Lee, Industrial & Engineering Chemistry Research, 34, 4133 (1995).
S. Shen, H. Yu and C. Yu, Chemical Engineering Science, 51, 1187 (1996b).
K.K. Tan, T.H. Lee, S. Huang, K.Y. Chua and R. Ferdous, Journal of Process Control, 16, 445 (2006).
T. H. Lee, Q. G. Wang and K. K. Tan, IEEE Transactions on Control Systems Technology, 3, 330 (1995).
J. Crowe, M.A. Johnson and M. J. Grimble, European Control Conference, 1–4 September (2003).
J. Crowe and Johnson, IEE Proceedings-Control Theory and Application, 147, 196 (2000).
Y. H. Kim, J. Chem. Eng. Jap., 28, 118 (1995).
K.K. Tan, T.H. Lee and Q.G. Wang, AIChE J., 42, 2555 (1996).
R. Chiang and C. Yu, Industrial & Engineering Chemistry Research, 32, 90 (1993).
M. Friman and K.V. Waller, Industrial & Engineering Chemistry Research, 36, 2662 (1997).
C.C. Hang, K. J. Åström and W.K. Ho, Automatica, 29, 563 (1993).
J. H. Park, S.W. Sung and I. Lee, Automatica, 33, 711 (1997).
J. H. Park, S.W. Sung and I. Lee, Automatica, 34, 751 (1998).
S. Shen, J. Wu and C. Yu, Industrial & Engineering Chemistry Research, 35, 1642 (1996c).
S.W. Sung and J. Lee, Automatica, 42, 353 (2006a).
S.W. Sung, J. Lee, D.H. Lee, J.H. Han and Y. S. Park, Industrial & Engineering Chemistry Research, 45, 4071 (2006).
S.W. Sung and J. Lee, Industrial & Engineering Chemistry Research, 45, 4028 (2006b).
D. P. Atherton, Nonlinear control engineering, Van Nostrand Reinhold, London (1975).
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Sung, S.W., Lee, J. Enhanced frequency response estimator to guarantee pre-specified phase angle and static disturbance rejection with all harmonics removed. Korean J. Chem. Eng. 25, 1273–1278 (2008). https://doi.org/10.1007/s11814-008-0209-9
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DOI: https://doi.org/10.1007/s11814-008-0209-9