TY - GEN
T1 - Comparison of SISO and MIMO control techniques for a diagonally dominant vapor compression system
AU - Jain, Neera
AU - Alleyne, Andrew G.
PY - 2009
Y1 - 2009
N2 - For vapor compression cycle (VCC) systems, it is important to meet multiple control objectives in order to satisfy system capacity and efficiency requirements. Moreover, in the HVAC industry, it is generally preferred to tune multiple single-input-single-output (SISO) control loops rather than a single multiple-input-multiple-output (MIMO) control loop. This paper shows that when using an appropriate choice of feedback variables, a decentralized control approach consisting of individual SISO control loops performs as well as a MIMO control approach. An identified system model is shown to be diagonally dominant when using a decoupling set of inputoutput pairings. A linear quadratic Gaussian (LQG) control design is compared to a decentralized SISO control design through experimental results. Both controllers produce comparable time-domain performance characteristics.
AB - For vapor compression cycle (VCC) systems, it is important to meet multiple control objectives in order to satisfy system capacity and efficiency requirements. Moreover, in the HVAC industry, it is generally preferred to tune multiple single-input-single-output (SISO) control loops rather than a single multiple-input-multiple-output (MIMO) control loop. This paper shows that when using an appropriate choice of feedback variables, a decentralized control approach consisting of individual SISO control loops performs as well as a MIMO control approach. An identified system model is shown to be diagonally dominant when using a decoupling set of inputoutput pairings. A linear quadratic Gaussian (LQG) control design is compared to a decentralized SISO control design through experimental results. Both controllers produce comparable time-domain performance characteristics.
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U2 - 10.1109/ACC.2009.5160155
DO - 10.1109/ACC.2009.5160155
M3 - Conference contribution
AN - SCOPUS:70449627459
SN - 9781424445240
T3 - Proceedings of the American Control Conference
SP - 1580
EP - 1585
BT - 2009 American Control Conference, ACC 2009
T2 - 2009 American Control Conference, ACC 2009
Y2 - 10 June 2009 through 12 June 2009
ER -