2017/08/22 by Ahmed S. Zamzam, Zamzam, Ahmed S., Emiliano Dall’Anese +7
Engineering · #FOS: Mathematics #Optimal Power Flow Distribution #Optimization and Control (math.OC) #Underwater Vehicles and Communication Systems #Water Systems and Optimization
paper · pdf · doi:10.48550/arxiv.1708.06754
openalex publication_date 2017/08/22 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28
This paper formalizes an optimal water-power flow (OWPF) problem to optimize\nthe use of controllable assets across power and water systems while accounting\nfor the couplings between the two infrastructures. Tanks and pumps are\noptimally managed to satisfy water demand while improving power grid\noperations; for the power network, an AC optimal power flow formulation is\naugmented to accommodate the controllability of water pumps. Unfortunately,\nthe physics governing the operation of the two infrastructures and coupling\nconstraints lead to a nonconvex (and, in fact, NP-hard) problem; however, after\nreformulating OWPF as a nonconvex, quadratically-constrained quadratic problem,\na feasible point pursuit-successive convex approximation approach is used to\nidentify feasible and optimal solutions. In addition, a distributed solver\nbased on the alternating direction method of multipliers enables water and\npower operators to pursue individual objectives while respecting the couplings\nbetween the two networks. The merits of the proposed approach are demonstrated\nfor the case of a distribution feeder coupled with a municipal water\ndistribution network.\n