TY - GEN
T1 - Cooperativity and hierarchical MPC of state-constrained switched power flow systems
AU - Pangborn, Herschel C.
AU - Alleyne, Andrew G.
N1 - Publisher Copyright:
© 2019 American Automatic Control Council.
PY - 2019/7
Y1 - 2019/7
N2 - Many energy systems require control frameworks that can manage dynamics spanning multiple timescales and can make decisions for both continuous and discrete inputs. This paper meets this need for a class of switched power flow systems modeled using graphs. Conditions are provided under which each mode of these models belongs to the class of cooperative systems. Leveraging properties of cooperative systems, a two-level hierarchical control framework is constructed in which an upper level controller governs slow dynamics to plan for long-term future behavior and select modes, while a lower level controller governs fast dynamics to improve performance and reject disturbances. The control framework guarantees satisfaction of state constraints while also ensuring that a minimum bound on the rate of energy transfer to the system can always be achieved. The applicability and efficacy of the approach is demonstrated in simulation on a fluid-thermal system representative of those found in aircraft.
AB - Many energy systems require control frameworks that can manage dynamics spanning multiple timescales and can make decisions for both continuous and discrete inputs. This paper meets this need for a class of switched power flow systems modeled using graphs. Conditions are provided under which each mode of these models belongs to the class of cooperative systems. Leveraging properties of cooperative systems, a two-level hierarchical control framework is constructed in which an upper level controller governs slow dynamics to plan for long-term future behavior and select modes, while a lower level controller governs fast dynamics to improve performance and reject disturbances. The control framework guarantees satisfaction of state constraints while also ensuring that a minimum bound on the rate of energy transfer to the system can always be achieved. The applicability and efficacy of the approach is demonstrated in simulation on a fluid-thermal system representative of those found in aircraft.
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U2 - 10.23919/acc.2019.8815363
DO - 10.23919/acc.2019.8815363
M3 - Conference contribution
AN - SCOPUS:85072274999
T3 - Proceedings of the American Control Conference
SP - 4245
EP - 4252
BT - 2019 American Control Conference, ACC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 American Control Conference, ACC 2019
Y2 - 10 July 2019 through 12 July 2019
ER -