Closed-Loop Two-Stage Stochastic Optimization of Offshore Wind Farm Collection System (original) (raw)

A two-stage stochastic optimization model for the design of the closed-loop cable layout of anOffshore Wind Farm (OWF) is presented. The model consists on a Mixed Integer Linear Program (MILP) with scenario numeration incorporation to account for both wind power and cable failures stochasticity. The objective function supports simultaneous optimization of: (i) Initial investment (network topology and cablesizing), (ii) Total electrical power losses costs, and (iii) Reliability costs due to energy curtailment fromcables failures. The mathematical program is embedded in an iterative framework called PCI (Progressive Contingency Incorporation) in order to simplify the problem while providing the global optimum. The applicability of the method is demonstrated by tackling a real-world instance. Results show the functionality of the tool in quantifying the economic profitability when applying stochastic optimization compared to a deterministic approach, given certain values of failure par...