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A user-friendly transactive coordination model for residential prosumers considering voltage unbalance in distribution networks
, Article IEEE Transactions on Industrial Informatics ; Volume 18, Issue 9 , 2022 , Pages 5748-5759 ; 15513203 (ISSN) ; Ehsan, M ; Moeini Aghtaie, M ; Ranjbar, H ; Lehtonen, M ; Sharif University of Technology
IEEE Computer Society
2022
Abstract
Designing transactive energy (TE) markets in distribution systems has been a hot topic due to the increased presence of residential prosumers. In the literature, several residential market platforms have been proposed; however, they usually have two main drawbacks: 1) ignoring the effect of single-phase distributed energy resources on the voltage unbalance (VU) in active distribution networks to develop a transactive coordination model that will effectively mitigate the VU and 2) inability in providing a user-friendly strategy for home occupants to adjust the willingness to pay/accept of responsive assets according to their comfort and economic purposes. This article amends the shortcomings...
Transactive energy management of V2G-capable electric vehicles in residential buildings: an milp approach
, Article IEEE Transactions on Sustainable Energy ; Volume 13, Issue 3 , 2022 , Pages 1734-1743 ; 19493029 (ISSN) ; Ranjbar, H ; Fattaheian-Dehkordi, S ; Moeini Aghtaie, M ; Ehsan, M ; Shahidehpour, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2022
Abstract
This paper proposes a new energy management model for residential buildings to handle the uncertainties of demand and on-site PV generation. For this purpose, the building energy management system (BEMS) organizes a transactive energy (TE) market among plug-in electric vehicles (PEVs) to determine their charge/discharge scheduling. According to the proposed TE framework, the PEV owners get reimbursed by the BEMS for the flexibility they offer. In this regard, the PEV owners submit their response curves for reimbursement upon arrival. Then, the BEMS solves an optimization problem to maximize its own profit and determine the real-time TE market-clearing price. Afterward, based on the clearing...
A short review on transition metal chalcogenides/carbon nanocomposites for energy storage
, Article Nano Futures ; Volume 6, Issue 3 , 2022 ; 23991984 (ISSN) ; Rastgoo Deylami, M ; Askari, M. B ; Hooshyari, K ; Sharif University of Technology
Institute of Physics
2022
Abstract
Introducing suitable electrode materials and electrolytes for supercapacitors and next-generation batteries should be considered for the industrial application of these devices. Among the proposed materials for them, transition metal chalcogenides (TMCs), are attractive and efficient options due to their unique properties such as appropriate layered structure, good oxidation state of transition metals, high thermal and mechanical stabilities, etc. However, applying other layered materials with high electrical conductivity e.g. carbon-based materials can lead to producing remarkable results for the mentioned applications. However, an interesting point is how making TMCs composite with...
Battery energy storage systems and demand response applied to power system frequency control
, Article International Journal of Electrical Power and Energy Systems ; Volume 136 , 2022 ; 01420615 (ISSN) ; Toulabi, M ; Ashouri Zadeh, A ; Ranjbar, A. M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
In this paper, several new control strategies for employing the battery energy storage systems (BESSs) and demand response (DR) in the load frequency control (LFC) task are proposed. In this way, first, the unit commitment problem considering the BESSs’ constraints in presence of wind farms and responsive loads is solved and the best location and the optimal size of the BESSs as well as the regulation power of the responsive loads are obtained. A rule-based plan is then suggested to improve the frequency regulation considering participation of wind farms. This plan is takes into account different states associated with power system frequency response as well as BESSs’ state of charge (SOC)....
Bimetallic oxide nanosheets from nickel-vanadium layered double hydroxide as an efficient cathode for rechargeable nickel-zinc batteries
, Article Energy and Fuels ; Volume 35, Issue 22 , 2021 , Pages 18805-18814 ; 08870624 (ISSN) ; Esfandiar, A ; Iraji Zad, A ; Sharif University of Technology
American Chemical Society
2021
Abstract
Nickel-zinc batteries as safe and economic energy storage devices suffer from lack of high electrochemical performance of cathode materials. Herein, a new cathode material for rechargeable Ni/Zn batteries is introduced based on various compositions of mixed metal oxide (MMO) through a calcination process of nickel-vanadium layered double hydroxide at different temperatures. The results demonstrated that the prepared sample at 500 °C presents the best electrochemical properties such as a good electrochemical discharge capacity (278.4 mAh g-1 at 0.5 A g-1), good cycle life (capacity retention of 74% after 1000 cycles at 5 A g-1), and excellent rate capability (177 mAh g-1 at 5 A g-1). These...
High energy aqueous rechargeable nickel-zinc battery employing hierarchical niv-ldh nanosheet-built microspheres on reduced graphene oxide
, Article ACS Applied Energy Materials ; Volume 4, Issue 3 , 2021 , Pages 2377-2387 ; 25740962 (ISSN) ; Esfandiar, A ; Sharif University of Technology
American Chemical Society
2021
Abstract
Demand for high-capacity, long cycle life, and aqueous batteries based on abundant metals such as nickel, zinc, aluminum, and so on is rising in the energy storage field. In this study, we design a hierarchical morphology as a nanosheet-built microsphere of nickel vanadium layered double hydroxide (NiV LDH) with conductive agents graphene oxide (GO) and multiwalled carbon nanotubes (CNTs) through a low-cost hydrothermal synthesis method. The experimental results demonstrate that the graphitic structures and functional groups of the GO and CNT play an important role in controlling nucleation, growth speed, size, and finally morphology of hierarchical nanosheets. The electrochemical results...
Cobalt based metal organic framework/graphene nanocomposite as high performance battery-type electrode materials for asymmetric supercapacitors
, Article Journal of Energy Storage ; Volume 33 , 2021 ; 2352152X (ISSN) ; Sedghi, A ; Hosseini, H ; Kashani, H ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Recently, development of advanced materials of metal-organic frameworks (MOFs) has attracted attention for the fabrication of supercapacitors (SCs) because of their high surface area and high level of porosity. However, poor electrical conductivity and weak mechanical properties of the MOFs have restricted their applications in the field. In this study, a one-step, in-situ synthesis of Cobalt-based MOF with graphene (CoMG nanocomposite) was employed to overcome the poor properties of MOFs. Accordingly, when the nanocomposite (CoMG5) was use as a supercapacitor electrode material, a specific capacitance (CS) of 549.96 F g−1 was observed in a three-electrode system with 6 M KOH electrolyte...
Cobalt based Metal Organic Framework/Graphene nanocomposite as high performance battery-type electrode materials for asymmetric Supercapacitors
, Article Journal of Energy Storage ; 2020 ; Sedghi, A ; Hosseini, H ; Kashani, H ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Recently, development of advanced materials of metal-organic frameworks (MOFs) has attracted attention for the fabrication of supercapacitors (SCs) because of their high surface area and high level of porosity. However, poor electrical conductivity and weak mechanical properties of the MOFs have restricted their applications in the field. In this study, a one-step, in-situ synthesis of Cobalt-based MOF with graphene (CoMG nanocomposite) was employed to overcome the poor properties of MOFs. Accordingly, when the nanocomposite (CoMG5) was use as a supercapacitor electrode material, a specific capacitance (CS) of 549.96 F g−1 was observed in a three-electrode system with 6 M KOH electrolyte...
Leakage-aware battery lifetime analysis using the calculus of variations
, Article IEEE Transactions on Circuits and Systems I: Regular Papers ; Volume 67, Issue 12 , June , 2020 , Pages 4829-4841 ; Safaei, B ; Ejlali, A ; Chen, J.-J ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2020
Abstract
Due to non-linear factors such as the rate capacity and the recovery effect, the shape of the battery discharge curve plays a significant role in the overall lifetime of the batteries. Accordingly, this paper proposes a simple heuristic battery-aware speed scheduling policy for periodic and non-periodic real-time tasks in Dynamic Voltage Scaling (DVS) systems with non-negligible leakage/static power. A set of comprehensive analysis has been conducted to compare the battery efficiency of the proposed policies with an optimal solution, which could be derived via the Calculus of Variations (CoV). These evaluations have taken into account both periodic and non-periodic tasks in DVS-based...
Expansion planning studies of independent-locally operated battery energy storage systems (BESSs): A CVaR-Based study
, Article IEEE Transactions on Sustainable Energy ; Volume 11, Issue 4 , 2020 , Pages 2109-2118 ; Heidarabadi, H ; Moeini Aghtaie, M ; Farzin, H ; Karimi, M. R ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2020
Abstract
Nowadays, the high penetration of renewable energy resources, with variable and unpredictable nature, poses major challenges to operation and planning studies of power systems. Employing energy storage systems (ESSs) has been introduced as an effective solution to alleviate these challenges. Several studies have been presented in the literature to provide a framework for expansion planning studies of ESSs. However, they usually have two main drawbacks: i) ignoring the positive effect of independent-locally operated ESSs on the bulk power system preferences, ii) inability to model the charge/discharge schedule of independent-locally operated ESSs based on their investors' acceptable risk...
Optimization of multiple transmission layouts for minimal energy consumption of a battery electric vehicle
, Article Scientia Iranica ; Volume 26, Issue 4A , 2019 , Pages 2382-2393 ; 10263098 (ISSN) ; Foumani, M. S ; Delkhosh, M ; Sharif University of Technology
Sharif University of Technology
2019
Abstract
Battery Electric Vehicles (BEVs) are a promising solution for reducing the impacts of passenger vehicles on the environment. However, their driving range is restricted due to the limitations of battery technologies. This range can be extended by adoption of multiple-speed transmissions. Most of the comparisons in the related studies are based on non-optimal designs or limited to modal driving cycles. Furthermore, the impact of Power-Split. Continuously Variable Transmission (PS-CVT) layout with type III power How on the power consumption of BEVs has never been examined. In this paper, single-, two-, and three-speed transmissions along with PS-C'VTs with type I and III power flows are...
Capacity-outage joint analysis and optimal power allocation for wireless body area networks
, Article IEEE Systems Journal ; Volume 13, Issue 1 , 2019 , Pages 635-646 ; 19328184 (ISSN) ; Jahed, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2019
Abstract
Wireless body area networks (WBANs) are characterized by short-range wireless communication between inherently resource-limited sensors that operate in the vicinity of the human body for recording certain physiological signals. One of the main limitations of WBANs is in terms of their available power. Since the nodes are typically battery-driven, an efficient power transmission is essential to guarantee long-lasting communications among nodes without the need for frequent battery replacement or charging. In this study, aiming to improve the WBAN performance, we first investigate the power allocation problem by choosing the ergodic capacity and the outage probability as the desired metrics....
Optimization of multiple transmission layouts for minimal energy consumption of a battery electric vehicle
, Article Scientia Iranica ; Volume 26, Issue 4A , 2019 , Pages 2382-2393 ; 10263098 (ISSN) ; Saadat Foumani , M ; Delkhosh, M ; Sharif University of Technology
Sharif University of Technology
2019
Abstract
Battery Electric Vehicles (BEVs) are a promising solution for reducing the impacts of passenger vehicles on the environment. However, their driving range is restricted due to the limitations of battery technologies. This range can be extended by adoption of multiple-speed transmissions. Most of the comparisons in the related studies are based on non-optimal designs or limited to modal driving cycles. Furthermore, the impact of Power-Split. Continuously Variable Transmission (PS-CVT) layout with type III power How on the power consumption of BEVs has never been examined. In this paper, single-, two-, and three-speed transmissions along with PS-C'VTs with type I and III power flows are...
Capacity-outage joint analysis and optimal power allocation for wireless body area networks
, Article IEEE Systems Journal ; 2018 ; 19328184 (ISSN) ; Jahed, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2018
Abstract
Wireless body area networks (WBANs) are characterized by short-range wireless communication between inherently resource-limited sensors that operate in the vicinity of the human body for recording certain physiological signals. One of the main limitations of WBANs is in terms of their available power. Since the nodes are typically battery-driven, an efficient power transmission is essential to guarantee long-lasting communications among nodes without the need for frequent battery replacement or charging. In this study, aiming to improve the WBAN performance, we first investigate the power allocation problem by choosing the ergodic capacity and the outage probability as the desired metrics....
SnO2@a-Si core-shell nanowires on free-standing CNT paper as a thin and flexible Li-ion battery anode with high areal capacity
, Article Nanotechnology ; Volume 28, Issue 25 , 2017 ; 09574484 (ISSN) ; Sadati Faramarzi, M ; Abdollahi, A ; Ramzani, R ; Ghasemi, S ; Sanaee, Z ; Sharif University of Technology
Institute of Physics Publishing
2017
Abstract
Here, we report 3D hierarchical SnO2 nanowire (NW) core-amorphous silicon shell on free-standing carbon nanotube paper (SnO2@a-Si/CNT paper) as an effective anode for flexible lithium-ion battery (LIB) application. This binder-free electrode exhibits a high initial discharge capacity of 3020 mAh g-1 with a large reversible charge capacity of 1250 mAh g-1 at a current density of 250 mA g-1. Compared to other SnO2 NW or its core-shell nanostructured anodes, the fabricated SnO2@a-Si/CNT structure demonstrates an outstanding performance with high mass loading (∼5.9 mg cm-2), high areal capacity (∼5.2 mAh cm-2), and large volumetric capacity (∼1750 mAh cm-3) after 25 cycles. Due to the...
Decentralized method for load sharing and power management in a PV/battery hybrid source Islanded microgrid
, Article IEEE Transactions on Power Electronics ; Volume 32, Issue 5 , 2017 , Pages 3525-3535 ; 08858993 (ISSN) ; Oraee, H ; Golsorkhi, M. S ; Guerrero, J. M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2017
Abstract
This paper proposes a new decentralized power management and load sharing method for a photovoltaic based islanded microgrid consisting of various photovoltaic (PV) units, battery units and hybrid PV/battery units. Unlike the previous methods in the literature, there is no need to communication among the units and the proposed method is not limited to the systems with separate PV and battery units or systems with only one hybrid unit. The proposed method takes into account the available PV power and battery conditions of the units to share the load among them. To cover all possible conditions of the microgrid, the operation of each unit is divided into five states and modified active...
Design and construction of a charge controller for stand-alone PV/battery hybrid system by using a new control strategy and power management
, Article Solar Energy ; Volume 149 , 2017 , Pages 132-144 ; 0038092X (ISSN) ; Forooghi, M ; Ghadimi, A. A ; Abolmasoumi, A. H ; Riahi, M. R ; Sharif University of Technology
Elsevier Ltd
2017
Abstract
In this paper, a new control strategy and power management for a stand-alone PV/battery hybrid power system has been suggested. The solar cell arrays provide energy in the steady-state and the battery provides energy in transient states. Here, a charge controller system based on the MPP tracking technology, suitable for using in the islanded micro grid that contains a solar panel and a battery is designed. The charge controller includes a unidirectional DC-DC converter as an interface circuit between the solar panel and the DC bus, a bidirectional DC-DC converter as an interface circuit between the battery and the DC bus with a control system and power management in different states of...
A transient model of vanadium redox flow battery
, Article Mechanics and Industry ; Volume 17, Issue 4 , 2016 ; 22577777 (ISSN) ; Elyasi, S ; Sharif University of Technology
EDP Sciences
2016
Abstract
It has been attempted to gain a new viewpoint in transient cell modeling of vanadium redox flow battery. This has been achieved by considering electrochemical relations along with conceptual electrical circuit of this kind of battery. The redox flow battery is one of the best rechargeable batteries because of its capability to average loads and output power sources. A model of transient behavior is presented in this paper. The transient features are considered as the most remarkable characteristics of the battery. The chemical reactions, fluid flow, and electrical circuit of the structure govern the dynamics. The transient behavior of the redox flow battery based on chemical reactions is...
Method for load sharing and power management in a hybrid PV/battery source islanded microgrid
, Article 7th Power Electronics, Drive Systems and Technologies Conference, PEDSTC 2016, 16 February 2016 through 18 February 2016 ; 2016 , Pages 652-657 ; 9781509003754 (ISBN) ; Oraee, H ; Guerrero, J. M ; Vasquez, J. C ; Savaghebi, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2016
Abstract
This paper presents a decentralized load sharing and power management method for an islanded microgrid composed of PV units, battery units and hybrid PV/battery units. The proposed method performs all the necessary tasks such as load sharing among the units, battery charging and discharging and PV power curtailment with no need to any communication among the units. The proposed method is validated experimentally
In-situ hydrothermal synthesis of Na3MnCO3PO4/rGO hybrid as a cathode for Na-ion battery
, Article Electrochimica Acta ; Volume 208 , 2016 , Pages 188-194 ; 00134686 (ISSN) ; Sadrnezhaad, S. K ; Chen, G ; Sharif University of Technology
Elsevier Ltd
2016
Abstract
Novel Na3MnCO3PO4 (NMCP)/reduced graphene oxide (rGO) nanocomposite was successfully synthesized via one-step hydrothermal method. The produced materials were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermogravimetry (TG), galvanostatic charge/discharge test and inductively coupled plasma optical emission spectroscopy (ICP-OES). Obtained results indicate the formation of ∼25 nm NMCP nanoparticles randomly distributed on rGO sheets. As a promising cathode material for Na-ion batteries, the hybrids deliver gravimetric discharge capacities of...