Results 31 to 40 of about 805,413 (278)

Transmission expansion planning with re-design [PDF]

open access: yesEnergy Systems, 2010
Expanding an electrical transmission network requires heavy investments that need to be carefully planned, often at a regional or national level. We study relevant theoretical and practical aspects of transmission expansion planning, set as a bilinear programming problem with mixed 0-1 variables. We show that the problem is NP-hard and that, unlike the
Moulin, Luciano   +2 more
openaire   +2 more sources

A market-based transmission planning for HVDC grid—case study of the North Sea [PDF]

open access: yes, 2015
There is significant interest in building HVDC transmission to carry out transnational power exchange and deliver cheaper electricity from renewable energy sources which are located far from the load centers.
Gibescu, M   +3 more
core   +1 more source

A Framework for Transmission Planning in a Competitive Electricity Market [PDF]

open access: yes, 2005
In this paper, a framework for optimal transmission system expansion planning in a competitive electricity market environment has been proposed. Open access transmission has created a deregulated power market and brought new challenges to system planning.
Dong, Z. Y., Lu, M., Saha, T. K.
core   +1 more source

Wind-Photovoltaic-Energy Storage System Collaborative Planning Strategy Considering the Morphological Evolution of the Transmission and Distribution Network

open access: yesEnergies, 2022
The collaborative planning of a wind-photovoltaic (PV)-energy storage system (ESS) is an effective means to reduce the carbon emission of system operation and improve the efficiency of resource collaborative utilization.
Defu Cai   +5 more
doaj   +1 more source

Dynamic Robust Transmission Expansion Planning

open access: yes, 2016
Recent breakthroughs in Transmission Network Expansion Planning (TNEP) have demonstrated that the use of robust optimization, as opposed to stochastic programming methods, renders the expansion planning problem considering uncertainties computationally ...
García-Bertrand, R., Mínguez, R.
core   +2 more sources

Probabilistic Power Flow for Hybrid AC/DC Grids with Ninth-Order Polynomial Normal Transformation and Inherited Latin Hypercube Sampling

open access: yesEnergies, 2019
This paper proposes a new probabilistic power flow method for the hybrid AC/VSC-MTDC (Voltage Source Control-Multiple Terminal Direct Current) grids, which is based on the combination of ninth-order polynomial normal transformation (NPNT) and inherited ...
Sui Peng   +7 more
doaj   +1 more source

Probabilistic Power Flow Analysis for Hybrid HVAC and LCC-VSC HVDC System

open access: yesIEEE Access, 2019
Some innovative works have been done to probabilistic power flow (PPF) analysis for hybrid HVAC and LCC-VSC HVDC system in this paper. Firstly, a unified method considering precise model of converters is proposed to solve a general deterministic power ...
Tong Shu   +7 more
doaj   +1 more source

Multi-Stage Transmission Network Planning Considering Transmission Congestion in the Power Market

open access: yesEnergies, 2020
The uncertainty of generation and load increases in the transmission network in the power market. Considering the transmission congestion risk caused by various uncertainties of the transmission network, the optimal operation strategies of the ...
Yixin Huang   +8 more
doaj   +1 more source

Coalition formation in transmission expansion planning [PDF]

open access: yes, 1999
The study of a decentralized coalition formation scheme in a specific power systems transmission expansion scenario is the purpose of this paper. We define first who are the agents in the expansion game and provide a decentralized coalition scheme based ...
Contreras, J, Wu, FF
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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