Introducing a Novel Method of Loss Allocation Based on Power Tracking in the Transactive Energy Market

, M.Sc. Thesis Sharif University of Technology Koochaki, Mohaddese (Author) ; Moeini Aghtaie, Moein (Supervisor)

Abstract

The issue of loss allocation is one of the most important issues that has long been considered in electricity networks, including distribution and transmission. With changes in distribution networks over the years and the penetration of distributed energy sources, the allocation of losses has become more of a challenge than ever before. Hence, there is a need for a loss allocation algorithm that can be implemented in any network and with any topology. In this dissertation, a new, simple and at the same time efficient algorithm for allocating real losses in all networks (distribution - transmission) and with any structure (radial - circular) is presented. This algorithm first tracks the...

A novel loss allocation method applicable for any desired network topology

, Article Electric Power Systems Research ; Volume 224 , 2023 ; 03787796 (ISSN) Koochaki, M ; Davoudi, M ; Moeini Aghtaie, M ; Sharif University of Technology

Elsevier Ltd 2023

Abstract

Due to the expansion of power networks in response to the increase in total load demand, the complexity regarding power systems transmission networks’ configuration has been increased. Similarly, with the advent of local energy markets and transactive energy concept, power distribution networks are undergoing a fundamental change. In this respect, numerous agents are transacting power within both distribution and transmission networks. Therefore, as more power is transacted among agents in different energy networks, power networks face higher power losses. Dealing with the financial outcomes of these losses, a general accurate yet fast method for loss allocation in power networks is of...

Asphaltene aggregation under the influence of structural features and interaction energies: Combination of quantum mechanical and molecular dynamics approaches

, Article Colloids and Surfaces A: Physicochemical and Engineering Aspects ; Volume 671 , 2023 ; 09277757 (ISSN) Vahid Dastjerdi, M ; Sayahi, H ; Koochaki, A ; Jamshidi, Z ; Sharif University of Technology

Elsevier B.V 2023

Abstract

The importance of the model to predict the aggregation behavior of asphaltene molecules at the molecular level was well established in different studies. Elucidation of the relationship between the interaction energy and the structural characteristics of asphaltene molecules to their aggregation behavior still needs further investigation. For this purpose, we combined the quantum mechanics and molecular dynamics approaches and analyzed the interaction energy of asphaltene to find out the effect of structural features on the aggregation behavior. The interaction energy of asphaltene is used in this study to evaluate the potential of aggregation. We found that asphaltene molecules with smaller...

Dissolution and conformational behavior of functionalized cellulose chains in the bulk, aqueous and non-aqueous media: A simulation study

, Article Carbohydrate Research ; Volume 496 , October , 2020 Koochaki, A ; Moghbeli, M. R ; Rasouli, S ; Gharib Zahedi, M. R ; Sharif University of Technology

Elsevier Ltd 2020

Abstract

In the present study, we employ all-atom molecular dynamics simulations to investigate the dynamic behaviors and structural properties of the native and modified cellulose chains in the bulk, aqueous, and organic media. Particular attention has been directed to the role of different hydrophobic and hydrophilic functional groups as linear and branched aliphatic and also cyclic pendent groups on the solubility and packing of the cellulose chain. The various properties related to density profile, mean squared displacement, intramolecular entropy, radius of gyration, and radial distribution function were calculated. The results showed that the chain tendency toward crystallinity decreased when...

First principle simulation of coated hydroxychloroquine on Ag, Au and Pt nanoparticles

, Article Scientific Reports ; Volume 11, Issue 1 , 2021 ; 20452322 (ISSN) Morad, R ; Akbari, M ; Rezaee, P ; Koochaki, A ; Maaza, M ; Jamshidi, Z ; Sharif University of Technology

Nature Research 2021

Abstract

From the first month of the COVID-19 pandemic, the potential antiviral properties of hydroxychloroquine (HCQ) and chloroquine (CQ) against SARS-CoV-2 suggested that these drugs could be the appropriate therapeutic candidates. However, their side effects directed clinical tests towards optimizing safe utilization strategies. The noble metal nanoparticles (NP) are promising materials with antiviral and antibacterial properties that can deliver the drug to the target agent, thereby reducing the side effects. In this work, we applied both the quantum mechanical and classical atomistic molecular dynamics approaches to demonstrate the adsorption properties of HCQ/CQ on Ag, Au, AgAu, and Pt...