Detailed long‐term hydro‐thermal scheduling for expansion planning in the Nordic power system. Issue 2 (1st November 2017)

• Record Type: Journal Article
• Authors: Helseth, Arild; Mo, Birger; Lote Henden, Arild; Warland, Geir
• Is Part Of: IET generation, transmission & distribution. Volume 12:Issue 2(2018)
• Page Start: 441
• Page End: 447
• Publication Date: 2017-11-01
• Subjects: hydrothermal power systems -- power generation scheduling -- stochastic programming -- linear programming; intermittent renewable generation -- socio‐economic surplus -- Nordic power system -- rolling horizon simulator -- exogenous market prices -- two‐stage stochastic linear programming problem -- large‐scale hydro systems -- long‐term hydro‐thermal scheduling; Electric power production -- Periodicals; Electric power transmission -- Periodicals; Electric power distribution -- Periodicals; 621.3105
• DOI: 10.1049/iet-gtd.2017.0903
• Languages: English
• ISSNs: 1751-8687

Abstract

Abstract : The authors describe a method for long‐term hydro‐thermal scheduling allowing treatment of detailed large‐scale hydro systems. Decisions for each week are determined by solving a two‐stage stochastic linear programming problem considering uncertainty in weather and exogenous market prices. The overall scheduling problem is solved by embedding such two‐stage problems in a rolling horizon simulator. The method is verified on data for the Nordic power system, studying the incremental changes in expected socio‐economic surplus for expansions in both the transmission and generation systems. Comparisons are made with a widely used existing long‐term hydro‐thermal scheduling model. The results indicate that the model is well suited to valuate the flexibility of hydropower in systems with a high share of intermittent renewable generation.