Open AccessContribution of non‐conventional pumped‐storage hydropower plant configurations in an isolated power system with an increasing share of renewable energy
Author(s) -
FernándezMuñoz Daniel,
PérezDíaz Juan I.
Publication year - 2020
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2019.0874
Subject(s) - hydropower , renewable energy , pumped storage hydroelectricity , wind power , time horizon , scheduling (production processes) , energy storage , power station , electric power system , engineering , environmental science , automotive engineering , computer science , distributed generation , power (physics) , electrical engineering , mathematical optimization , operations management , physics , quantum mechanics , mathematics
This paper analyses the contribution of non‐conventional pumped‐storage hydropower plant (PSHP) configurations like variable‐speed pumping and hydraulic short‐circuit, to reducing the scheduling cost and wind curtailment of an isolated power system with a high penetration of renewable energy. Their impact on the system's CO 2 emissions and generation mix is analysed as well. For this purpose, the next‐day generation scheduling of the power system of the Great Canary island is computed on a rolling horizon basis for an entire year, considering conventional and non‐conventional PSHP configurations and an increasing installed wind power. Different types of start‐ups of the thermal generating units and the opportunity cost of water (water value) are considered in the day‐ahead generation scheduling. The water value is daily updated by using a two‐stage stochastic optimisation model with a two‐week planning horizon. The results obtained show how these non‐conventional pumped‐storage hydropower plant configurations help not only to reduce the power system scheduling cost but also to integrate more wind energy.