Lagrangian relaxation based heuristics for a chance-constrained optimization model of a hybrid solar-battery storage system

Bismark Singh () and Bernard Knueven
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Bismark Singh: Friedrich-Alexander-Universität Erlangen-Nürnberg
Bernard Knueven: National Renewable Energy Laboratory

Journal of Global Optimization, 2021, vol. 80, issue 4, No 10, 965-989

Abstract: Abstract We develop a stochastic optimization model for scheduling a hybrid solar-battery storage system. Solar power in excess of the promise can be used to charge the battery, while power short of the promise is met by discharging the battery. We ensure reliable operations by using a joint chance constraint. Models with a few hundred scenarios are relatively tractable; for larger models, we demonstrate how a Lagrangian relaxation scheme provides improved results. To further accelerate the Lagrangian scheme, we embed the progressive hedging algorithm within the subgradient iterations of the Lagrangian relaxation. We investigate several enhancements of the progressive hedging algorithm, and find bundling of scenarios results in the best bounds. Finally, we provide a generalization for how our analysis extends to a microgrid with multiple batteries and photovoltaic generators.

Keywords: Chance constraints; Stochastic optimization; Lagrangian decomposition; Progressive hedging; Solar power; Photovoltaic power station; Battery storage; Virtual power plant; Out of sample validation; Microgrid (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10898-021-01041-y

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