TY - GEN
T1 - Control structure design for complex energy integrated networks using graph-theoretic methods
AU - Heo, Seongmin
AU - Georgis, Dimitrios
AU - Daoutidis, Prodromos
PY - 2013
Y1 - 2013
N2 - In this paper, we propose a mixed integer program (MIP) formulation which can be used to synthesize multi-loop hierarchical control structures for tightly energy integrated plants, which are known to exhibit multiple-time scale energy dynamics. First, we represent the network as an energy flow graph, and perform graph reduction using graph-theoretic algorithms that we have previously developed, to analyze the time scale properties of the network and obtain energy flow subgraphs for each time scale. Then, from each energy flow subgraph, we construct an equation graph from which we can extract relative degree information. Using the proposed MIP, optimal input/output pairing sets are obtained, which minimize the structural coupling in each time scale. We illustrate the application of the proposed work through a case study of a benchmark chemical process.
AB - In this paper, we propose a mixed integer program (MIP) formulation which can be used to synthesize multi-loop hierarchical control structures for tightly energy integrated plants, which are known to exhibit multiple-time scale energy dynamics. First, we represent the network as an energy flow graph, and perform graph reduction using graph-theoretic algorithms that we have previously developed, to analyze the time scale properties of the network and obtain energy flow subgraphs for each time scale. Then, from each energy flow subgraph, we construct an equation graph from which we can extract relative degree information. Using the proposed MIP, optimal input/output pairing sets are obtained, which minimize the structural coupling in each time scale. We illustrate the application of the proposed work through a case study of a benchmark chemical process.
UR - http://www.scopus.com/inward/record.url?scp=84885216271&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885216271&partnerID=8YFLogxK
U2 - 10.1109/MED.2013.6608765
DO - 10.1109/MED.2013.6608765
M3 - Conference contribution
AN - SCOPUS:84885216271
SN - 9781479909971
T3 - 2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings
SP - 477
EP - 482
BT - 2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings
T2 - 2013 21st Mediterranean Conference on Control and Automation, MED 2013
Y2 - 25 June 2013 through 28 June 2013
ER -