Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Eigen Analysis of Wind-Hydro Joint Frequency Regulation in an Isolated Power System
Year:2018
Research Areas
  • Storage systems,
  • Applications on electric energy,
  • Hidraulic stations,
  • Aeolian generation
Information
Abstract
The wind energy penetration rate is being increased in majority of European countries. However, a high penetration rate could endanger the stability of power systems, particularly in small islands. Hydropower plays an important role in the regulation and control of isolated power systems with renewable sources, but it may not be able to maintain the frequency within grid requirements. This is the case of El Hierro power system (Canary archipelago), where a hybrid wind?pumped storage hydropower plant (PSHP) was committed to reduce the use of fossil fuels. Currently, frequency regulation is only provided by the PSHP and diesel generators. Therefore, it is proposed that variable-speed wind turbines (VSWTs) contribute to frequency regulation, thereby minimizing the need for fossil fuels. This study aims to conduct an analysis on the effect of the VSWT contribution to frequency regulation in the power system of El Hierro. It is based on classical control tools from a linearized mathematical model considering different VSWT regulation strategies. The eigenvalues, damping ratio, and participation factors of the state variables have been obtained. The more significant oscillation modes in the dynamic response of the system have been identified. According to this modal analysis, a methodology for the adjustment of the PSHP and VSWT controller gains is proposed. An improvement in the quality of frequency regulation while maintaining the El Hierro system frequency within grid requirements has been proved based on simulating different events related to wind speed or variations in the power demand, using a nonlinear model of the combined wind?hydro power plant.
International
Si
JCR
Si
Title
International Journal of Electrical Power and Energy Systems
ISBN
0142-0615
Impact factor JCR
3,289
Impact info
Volume
103
10.1016/j.ijepes.2018.06.028
Journal number
From page
511
To page
524
Month
JUNIO
Ranking
Participants
  • Autor: Guillermo Martinez De Lucas (UPM)
  • Autor: Jose Ignacio Sarasua Moreno (UPM)
  • Autor: Jose Angel Sanchez Fernandez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Generación eléctrica con energía eólica
  • Grupo de Investigación: Hidroinformática y Gestión del Agua
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)