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An Optimization Approach to the Design of Multi-Size Heliostat fields

E. Carrizosa (ecarrizosa***at***us.es)
C. Domínguez-Bravo (carmenanadb***at***us.es)
E. Fernández-Cara (cara***at***us.es)
M. Quero (manuel.quero***at***solar.abengoa.com)

Abstract: In this paper, the problem of optimizing the heliostats field configuration of a Solar Power Tower system with heliostats of different sizes is addressed. Maximizing the efficiency of the plant, i.e., optimizing the energy generated per unit cost, leads to a difficult high dimensional optimization problem (of variable dimension) with an objective function hard to compute and non-convex constraints as well. An heuristic algorithm greedy-based is proposed to solve the problem. The numerical experiments show the advantages of combining heliostats of different sizes, in particular, if different prices apply, which is a very reasonable assumption.

Keywords: solar thermal power; multi-size heliostat field; greedy algorithm

Category 1: Global Optimization (Applications )

Citation: Institute of Mathematics of University of Seville (IMUS), May/2014.

Download: [PDF]

Entry Submitted: 05/28/2014
Entry Accepted: 05/28/2014
Entry Last Modified: 05/28/2014

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