Results 31 to 40 of about 989,388 (292)

A dual-driven predictive control for photovoltaic-diesel microgrid secondary frequency regulation

open access: yesApplied Energy, 2023
Photovoltaic (PV) panel generator is inherently fluctuant due to its dependence on weather. If this generator connects to power grids or microgrids (MGs), the frequency of renewable-energy-based power grids or MGs will not be stable. Hence, in this paper, a dual-driven predictive control scheme is proposed to control the frequency to make MGs stable ...
Jinhui Wu, Fuwen Yang
openaire   +2 more sources

Chance-Constrained Real-Time Dispatch with Renewable Uncertainty Based on Dynamic Load Flow

open access: yesEnergies, 2017
In this paper, a comprehensive real-time dispatch model considering renewable uncertainty based on dynamic load flow (DLF) is proposed. Through DLF, the primary and secondary frequency regulation amount caused by the variation of renewable energy as well
Pei Bie   +6 more
doaj   +1 more source

Residential HVAC Aggregation Based on Risk-averse Multi-armed Bandit Learning for Secondary Frequency Regulation

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
As the penetration of renewable energy continues to increase, stochastic and intermittent generation resources gradually replace the conventional generators, bringing significant challenges in stabilizing power system frequency.
Xinyi Chen   +5 more
doaj   +1 more source

Ultimate boundedness of droop controlled Microgrids with secondary loops

open access: yes, 2014
In this paper we study theoretical properties of inverter-based microgrids controlled via primary and secondary loops. Stability of these microgrids has been the subject of a number of recent studies.
Braslavsky, Julio   +2 more
core   +1 more source

Unlocking the Potential of Flexible Energy Resources to Help Balance the Power Grid

open access: yes, 2018
Flexible energy resources can help balance the power grid by providing different types of ancillary services. However, the balancing potential of most types of resources is restricted by physical constraints such as the size of their energy buffer ...
Lygeros, John   +2 more
core   +1 more source

On BESS Capacity Optimization of Hybrid Coal-Fired Generator and BESS Power Station for Secondary Frequency Regulation

open access: yesIEEE Access
Integrating 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

Provision of secondary frequency regulation by coordinated dispatch of industrial loads and thermal power plants [PDF]

open access: yes, 2019
Demand responsive industrial loads with high thermal inertia have potential to provide ancillary service for frequency regulation in the power market.
Bao, Y   +8 more
core  

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Quantifying the performance and compensation of secondary frequency regulation of pumped storage plants considering variable-speed operation

open access: yesFrontiers in Energy Research
Aiming at the “net-zero carbon” target, a higher proportion of variable renewable energies (VREs) has been integrated into power grids, and pumped storage plants (PSPs) are crucial for guaranteeing the safe and stable operation of hybrid energy systems ...
Jingdan Chen   +4 more
doaj   +1 more source

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