Hydropower Plants Frequency Regulation Depending on Upper Reservoir Water Level

Carlos A. Platero, José A. Sánchez, Christophe Nicolet and Philippe Allenbach
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Carlos A. Platero: Department of Electrical Engineering, ETSI Industriales, Universidad Politécnica de Madrid, C/José Gutiérrez Abascal, 2, 28006 Madrid, Spain
José A. Sánchez: Department of Hydraulic, Energy and Environmental Engineering, ETSICCP, Universidad Politécnica de Madrid, C/Profesor Aranguren No 3, 28040 Madrid, Spain
Christophe Nicolet: Power Vision Engineering, Chemin des Champs-Courbes 1, CH-1024 Ecublens, Switzerland
Philippe Allenbach: École Polytechnique Fédérale de Lausanne, EPFL STI STI-DEC GR-SCI-IEL, ELG 033 (Bâtiment ELG), Station 11, CH-1015 Lausanne, Switzerland

Energies, 2019, vol. 12, issue 9, 1-15

Abstract: This paper presents a novel method of hydro power plant operation, based on the control of the injectors’ or wicked gates opening time as a function of the upper reservoir level. In this way, a faster power injection, depending on the current water level on the upper reservoir, could be achieved. When this level is higher, the opening time could be shorter; hence, hydropower ramps could be steeper. Due to this control, frequency excursions and load shedding trips are smaller, thus the power quality is enhanced. This method has been tested and validated by computer simulations in a case study located in El Hierro island, Canary Archipelago (Spain). The simulations made show significant improvements, dependent on upper reservoir water level, in power quality.

Keywords: hydroelectric power generation; power system dynamic stability; frequency stability; wind power generation; hydraulic equipment (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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