Robust variable horizon MPC with move blocking
This paper introduces a new formulation of variable horizon model predictive control (VH-MPC) that utilises move blocking for reducing computational complexity. Various results pertaining to move blocking are derived, following which, a generalised blocked VH-MPC controller is formulated for linear...
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| Published in: | Systems & control letters Vol. 61; no. 4; pp. 587 - 594 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
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Amsterdam
Elsevier B.V
01.04.2012
Elsevier |
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| ISSN: | 0167-6911, 1872-7956 |
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| Abstract | This paper introduces a new formulation of variable horizon model predictive control (VH-MPC) that utilises move blocking for reducing computational complexity. Various results pertaining to move blocking are derived, following which, a generalised blocked VH-MPC controller is formulated for linear discrete-time systems. Robustness to bounded disturbances is ensured through the use of tightened constraints. The resulting time-varying control scheme is shown to guarantee robust recursive feasibility and finite-time completion. An example is then presented for a particular choice of blocking regime, as would be applicable to vehicle manœuvring problems. Simulations demonstrate the efficacy of the formulation. |
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| AbstractList | This paper introduces a new formulation of variable horizon model predictive control (VH-MPC) that utilises move blocking for reducing computational complexity. Various results pertaining to move blocking are derived, following which, a generalised blocked VH-MPC controller is formulated for linear discrete-time systems. Robustness to bounded disturbances is ensured through the use of tightened constraints. The resulting time-varying control scheme is shown to guarantee robust recursive feasibility and finite-time completion. An example is then presented for a particular choice of blocking regime, as would be applicable to vehicle manAuvring problems. Simulations demonstrate the efficacy of the formulation. This paper introduces a new formulation of variable horizon model predictive control (VH-MPC) that utilises move blocking for reducing computational complexity. Various results pertaining to move blocking are derived, following which, a generalised blocked VH-MPC controller is formulated for linear discrete-time systems. Robustness to bounded disturbances is ensured through the use of tightened constraints. The resulting time-varying control scheme is shown to guarantee robust recursive feasibility and finite-time completion. An example is then presented for a particular choice of blocking regime, as would be applicable to vehicle manœuvring problems. Simulations demonstrate the efficacy of the formulation. |
| Author | Maciejowski, Jan M. Shekhar, Rohan C. |
| Author_xml | – sequence: 1 givenname: Rohan C. surname: Shekhar fullname: Shekhar, Rohan C. email: rcs48@eng.cam.ac.uk – sequence: 2 givenname: Jan M. surname: Maciejowski fullname: Maciejowski, Jan M. email: jmm@eng.cam.ac.uk |
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| Cites_doi | 10.1109/CDC.2007.4434747 10.1016/j.jprocont.2007.01.001 10.1002/rnc.1059 10.1016/S0005-1098(99)00214-9 10.1016/j.automatica.2009.09.020 10.1016/S0005-1098(98)00178-2 10.1109/CDC.2009.5400609 10.1109/9.262032 10.1109/ACC.2007.4283000 10.1109/CACSD.2004.1393890 |
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| Keywords | Move blocking Robust control Variable horizon Predictive control Model predictive control Time varying system Discrete time Blocking Recursive method Feasibility Robustness Computational complexity |
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| SubjectTerms | Adaptative systems Applied sciences Blocking Computer science; control theory; systems Control systems Control theory. Systems Disturbances Effectiveness Exact sciences and technology Feasibility Horizon Mathematical models Move blocking Optimal control Predictive control Robust control Robustness Variable horizon |
| Title | Robust variable horizon MPC with move blocking |
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