Results 21 to 30 of about 358,306 (251)
Energy Reports, 2022 Natural disasters lead to the uncertain topological structure of the urban distribution network. It is difficult for the communication system to recover quickly, which brings great difficulties to restoring the power supply.
Zhichao Liu +7 more
doaj +1 more source
Stability and optimality of distributed schemes for secondary frequency regulation in power networks
2016 IEEE 55th Conference on Decision and Control (CDC), 2016 We present a method for designing distributed generation and demand control schemes for secondary frequency regulation in power networks such that asymptotic stability and an economically optimal power allocation can be guaranteed. A dissipativity condition is imposed on net power supply variables to provide stability guarantees.
Kasis, Andreas +2 more
openaire +1 more source
Primary and secondary frequency regulation in a longitudinal hydrothermal system by Liapunov method
Electric Power Systems Research, 2008 Abstract The problem of primary and secondary frequency regulation of a multi-machine power system is analysed with a Liapunov function method based on a quadratic performance index. The main purpose is to determine the best set of parameters of primary and secondary regulation according to an optimisation criterion.
Moya, O., Ramos, A.
openaire +3 more sources
Transient Frequency Modeling and Characteristic Analysis of Virtual Synchronous Generator
EnergiesThe large-scale integration of renewable energy into power systems significantly alters their operational characteristics, reducing system inertia and posing challenges to transient frequency stability.
Zhou Su, Guoqing Yang, Lixiao Yao
doaj +1 more source
发电技术ObjectivesWhen assisting the frequency regulation of the thermal power units, battery energy storage faces difficulties in coping with high-amplitude and high-frequency disturbances.
ZHANG Ping +4 more
doaj +1 more source
Model‐based receding horizon control of wind farms for secondary frequency regulation
Wind Energy, 2017 AbstractIn this study, we propose the use of model‐based receding horizon control to enable a wind farm to provide secondary frequency regulation for a power grid. The controller is built by first proposing a time‐varying one‐dimensional wake model, which is validated against large eddy simulations of a wind farm at startup.
Shapiro, Carl R. +4 more
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita +5 more
wiley +1 more source
IEEE AccessIntegrating battery energy storage systems (BESS) into a coal-fired generator can enhance power systems’ secondary frequency regulation capability.
Xinsong Zhang +4 more
doaj +1 more source
Re‐Irradiation in Pediatric Diffuse Midline Glioma: A Multi‐Institutional Retrospective Study
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with recurrent diffuse midline gliomas (DMGs) have limited therapeutic options at recurrence. Re‐irradiation (RT2) may be used at progression, but with uncertainty about the benefit. Methods We conducted a multi‐institutional retrospective study of children aged < 18 with DMG treated at three centers (Toronto, Canada ...
Ajay Thomas Alex +13 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source