On the Implementation of Variable Speed in Pump-Turbine Units Providing Primary and Secondary Load-Frequency Control in Generating Mode

Autor: José Ignacio Sarasúa, Juan Ignacio Pérez-Díaz, Blanca Torres Vara

Publikováno v: Energies, Vol 8, Iss 12, Pp 13559-13575 (2015)

This paper analyses different control strategies for the speed control loop of a variable-speed pump-turbine unit equipped with a doubly fed induction generator, operating in generating mode in an isolated power system with high penetration of interm

Externí odkaz: https://doaj.org/article/811dfe70945c40e1bfba641e34edc0de

Frequency Regulation of a Hybrid Wind–Hydro Power Plant in an Isolated Power System

Autor: Guillermo Martínez-Lucas, José Ignacio Sarasúa, José Ángel Sánchez-Fernández

Publikováno v: Energies, Vol 11, Iss 1, p 239 (2018)

Currently, some small islands with high wind potential are trying to reduce the environmental and economic impact of fossil fuels by using renewable resources. Nevertheless, the characteristics of these renewable resources negatively affect the quali

Externí odkaz: https://doaj.org/article/21b133ddadd649248e25dc045f3fe112

Implementation and Evaluation of a Complex Pumped-Storage Hydropower Plant with Four Units, Common Penstock, and Surge Tank in a Real-Time Digital Simulator

Autor: Hasan Akbari, Juan I. Pérez-Díaz, José-Ignacio Sarasúa, Robert Schürhuber

Publikováno v: Energies, Vol 16, Iss 9, p 3828 (2023)

The demand for energy storage systems is rising together with the proportion of renewable energy sources (RES) in power systems. The highest capacity among the various energy storage systems in power systems is provided by pumped-storage hydropower (

Externí odkaz: https://doaj.org/article/c67d2f7e2596442e8011afbed7d819a5

Risk of penstock fatigue in pumped-storage power plants operating with variable speed in pumping mode

Autor: Guillermo Martínez-Lucas, Giovanna Cavazzini, Giorgio Pavesi, Guido Ardizzon, José Ignacio Sarasúa, Manuel Chazarra, Juan I. Pérez-Díaz

Publikováno v: Renewable Energy, ISSN 0960-1481, 2019, Vol. 133
Archivo Digital UPM
Universidad Politécnica de Madrid

The upgrade of a pumped-storage power plant (PSPP) to allow variable speed operation offer several advantages in pumping and generating modes. However, in pumping mode at part load, both pressure and torque pulsations develop in the pump turbine runn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be56e73f8eeed2e71d0ef30bde9bc769
https://doi.org/10.1016/j.renene.2018.10.060

Analysis of the Implementation of the Primary and/or Inertial Frequency Control in Variable Speed Wind Turbines in an Isolated Power System with High Renewable Penetration. Case Study: El Hierro Power System

Autor: José Ignacio Sarasúa, Sergio Martinez, Juan I. Pérez-Díaz, Guillermo Martínez-Lucas, Danny Ochoa

Publikováno v: Electronics
Volume 9
Issue 6
Electronics, ISSN 2079-9292, 2020-05-28, Vol. 9, No. 6
Archivo Digital UPM
Universidad Politécnica de Madrid
Electronics, Vol 9, Iss 901, p 901 (2020)

With high levels of wind energy penetration, the frequency response of isolated power systems is more likely to be affected in the event of a sudden frequency disturbance or fluctuating wind conditions. In order to minimize excessive frequency deviat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28624fad58655730208fab5f15975ac5