Results 21 to 30 of about 698 (139)

Second-Order Cone Programming for Linepack in Multistage Stochastic Co-Expansion Planning Power and Natural Gas Systems with Natural Gas Storage [PDF]

open access: yesAUT Journal of Electrical Engineering, 2021
The interdependency between power and natural gas is so tight, especially where natural gas extraction is economical. Therefore, co-expansion planning is imperative for having efficient systems with minimum cost.
Arash Gholami   +4 more
doaj   +1 more source

Towards Resilient Operation of Multimicrogrids: An MISOCP-Based Frequency-Constrained Approach

open access: yesIEEE Transactions on Control of Network Systems, 2019
High penetration of distributed energy resources (DERs) is transforming the paradigm in power system operation. The ability to provide electricity to customers while the main grid is disrupted has introduced the concept of microgrids with many challenges and opportunities.
Amin Gholami, Xu Andy Sun
openaire   +2 more sources

Finding an energy efficient path for plug-in electric vehicles with speed optimization and travel time restrictions [PDF]

open access: yes, 2023
Transportation is one of the main factors when global total energy consumption is considered and is a significant contributor to emissions of harmful gases including carbon dioxide (CO2). Due to their lower tailpipe CO2 emissions compared to the vehicles
Atashi Khoei, Arsham   +2 more
core   +1 more source

Day-ahead optimal scheduling model of transmission–distribution integrated electricity–gas systems based on convex optimization

open access: yesEnergy Reports, 2022
With the deepening of the coupling degree between power network and natural gas network, the traditional independent optimal scheduling of transmission and distribution integrated electricity–gas systems cannot make full use of the flexible control ...
Gang Wu   +6 more
doaj   +1 more source

A Scalable Algorithm For Sparse Portfolio Selection

open access: yes, 2020
The sparse portfolio selection problem is one of the most famous and frequently-studied problems in the optimization and financial economics literatures. In a universe of risky assets, the goal is to construct a portfolio with maximal expected return and
Bertsimas, Dimitris, Cory-Wright, Ryan
core   +1 more source

Extended Formulations in Mixed-Integer Convex Programming [PDF]

open access: yes, 2019
We present a unifying framework for generating extended formulations for the polyhedral outer approximations used in algorithms for mixed-integer convex programming (MICP).
Bent, Russell   +3 more
core   +1 more source

Advanced Flexibility Support through DSO-Coordinated Participation of DER Aggregators in the Balancing Market

open access: yesEnergies, 2023
Future power systems with a high share of intermittent renewable energy sources (RES) in the energy portfolio will have an increasing need for active power balancing.
Đorđe Lazović, Željko Đurišić
doaj   +1 more source

An Active Set Algorithm for Robust Combinatorial Optimization Based on Separation Oracles [PDF]

open access: yes, 2018
We address combinatorial optimization problems with uncertain coefficients varying over ellipsoidal uncertainty sets. The robust counterpart of such a problem can be rewritten as a second-oder cone program (SOCP) with integrality constraints.
Buchheim, Christoph, De Santis, Marianna
core   +2 more sources

Optimal Collaborative Expansion Planning of Integrated Cooling and Power System for Low-Latitude Distribution Networks

open access: yesIEEE Access, 2021
In low latitudes, ice storage air conditioners (ISACs) have been widely used to cool while locally responding to the distribution network demand. However, due to the lack of the direct cold energy exchange between ISACs, the cooling load could only be ...
Bo Yang   +7 more
doaj   +1 more source

A novel robust Volt/Var optimization method based on worst‐case scenarios for distribution network operation

open access: yesIET Generation, Transmission & Distribution, 2023
The Volt/Var optimization (VVO) problem is used for scheduling the voltage regulation and reactive power compensation equipment in distribution networks to minimize power loss and voltage violation.
Mahdi Ahmadi   +2 more
doaj   +1 more source

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