Results 31 to 40 of about 19,479 (297)
Zhongguo dianli, 2020 Due to the randomness of its occurrence in power system, currently there is no effective way to suppress the low frequency oscillations through the existing thermal control modes of generation units.
Bao ZHANG +4 more
doaj +1 more source
, 2018 In this paper, a model reference control based inertia emulation strategy is proposed. Desired inertia can be precisely emulated through this control strategy so that guaranteed performance is ensured. A typical frequency response model with parametrical
Djouadi, Seddik +3 more
core +1 more source
EnergiesVariable-Speed Hydropower Plants (VSHP) are becoming more promising for stabilising power grids with the increasing integration of renewable energy sources.
Cagatay Cebeci +4 more
doaj +1 more source
Energies, 2015 The objective of this paper is to investigate the cause of several unexpected high amplitude oscillations that occurred in the surge tank water level of a real hydropower plant during secondary load-frequency control (LFC) maneuvers, after the ...
Juan I. Pérez-Díaz, José I. Sarasúa
doaj +1 more source
A Mathematical Model and Its Application for Hydro Power Units under Different Operating Conditions
Energies, 2015 This paper presents a mathematical model of hydro power units, especially the governor system model for different operating conditions, based on the basic version of the software TOPSYS.
Weijia Yang +6 more
doaj +1 more source
Identification of hydro turbine governors using PMU data [PDF]
2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), 2018 Recent concerns for the frequency quality in the Nordic power system has lead to an increased interest in hydro turbine governors. Among this research have been papers on identification of turbine and turbine governor dynamics from PMU measurements. However, no attempt at a theoretical validation has been made.
Jakobsen, Sigurd Hofsmo +2 more
openaire +2 more sources
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Energy Science & EngineeringThe governor parameters affect the stability and regulation quality of hydropower system with two turbine units sharing a super long headrace tunnel (SLHT).
Wencheng Guo, Li Wang, Fangle Qu
doaj +1 more source
Hydro/Battery Hybrid Systems for frequency regulation [PDF]
, 2019 An innovative Hydro/Battery Hybrid System (HBHS), composed of a hydropower plant (HPP) and a Battery Energy Storage System (BESS) is proposed to provide frequency regulation services in the Nordic Power System (NPS).
Laban, Danilo
core +1 more source
Using a fuzzy inference system to control a pumped storage hydro plant [PDF]
, 2001 The paper discusses the development of a fuzzy inference system (FIS) based governor control for a pumped storage hydroelectric plant. The First Hydro Company's plant at Dinorwig in North Wales is the largest of its kind in Europe and is mainly used for ...
Aris, F. C. +5 more
core +3 more sources