Power System Stability of a Small Sized Isolated Network Supplied by a Combined Wind-Pumped Storage Generation System: A Case Study in the Canary Islands

Energies

Julia Merino¹  Carlos Veganzones¹  Jose A. Sanchez²  Sergio Martinez¹ 

[1] Department of Electrical Engineering, ETS Ingenieros Industriales, Technical University of Madrid, C/Jose Gutierrez Abascal 2, Madrid 28006, Spain; E-Mails:;Department of Hydraulic and Energy Engineering, ETS Ingenieros de Caminos, Canales y Puertos, Technical University of Madrid, C/ Profesor Aranguren s/n, Madrid 28040, Spain; E-Mail:

关键词: power system dynamic modeling;    isolated grid;    transient stability;    wind power generation;   

DOI  :  10.3390/en5072351

来源: mdpi

【 摘 要 】

Massive integration of renewable energy sources in electrical power systems of remote islands is a subject of current interest. The increasing cost of fossil fuels, transport costs to isolated sites and environmental concerns constitute a serious drawback to the use of conventional fossil fuel plants. In a weak electrical grid, as it is typical on an island, if a large amount of conventional generation is substituted by renewable energy sources, power system safety and stability can be compromised, in the case of large grid disturbances. In this work, a model for transient stability analysis of an isolated electrical grid exclusively fed from a combination of renewable energy sources has been studied. This new generation model will be installed in El Hierro Island, in Spain. Additionally, an operation strategy to coordinate the generation units (wind, hydro) is also established. Attention is given to the assessment of inertial energy and reactive current to guarantee power system stability against large disturbances. The effectiveness of the proposed strategy is shown by means of simulation results.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.