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Home load management in a residential energy hub
, Article Electric Power Systems Research ; Vol. 119, issue , 2015 , p. 322-328 ; ISSN: 3787796 ; Fotuhi-Firuzabad, M ; Lehtonen, M ; Sharif University of Technology
Abstract
One way of more efficiently utilizing the existing gas and electrical infrastructures is to consider them as one integrated system in planning and operation of energy systems. The energy hub framework is adopted to determine a modeling procedure for such multi carrier energy systems. This paper presents a residential energy hub model for a smart home. A residential combined heat and power (CHP) as a cogeneration technology, and a plug-in hybrid electric vehicle are employed in the model. Operation of the hub is optimized through a proposed optimization-based formulation. The objective is to minimize customer payment cost. Solving the problem determines how much of each energy carrier the...
Online multicriteria framework for charging management of PHEVs
, Article IEEE Transactions on Vehicular Technology ; Vol. 63, issue. 7 , September , 2014 , p. 3028-3037 ; ISSN: 189545 ; Abbaspour, A ; Fotuhi-Firuzabad, M ; Sharif University of Technology
Abstract
Societal concerns over global warming issues and dependence on fossil fuels have caused the vehicle market share of plug-in hybrid electric vehicles (PHEVs) to grow. A large penetration of PHEVs, however, would likely put higher stress on power systems. To lessen the PHEVs' harmful impacts on the distribution grid, this paper proposes a two-stage charging control strategy modeled on a renewable-based energy hub. In the first stage, a home-based charging control method is formulated in which the charging cost of PHEVs is considered as an objective. Running this procedure by PHEV schedulers in houses, in the second stage of the proposed strategy, the PHEV coordinator agent (PCA) applies a...
A decomposed solution to multiple-energy carriers optimal power flow
, Article IEEE Transactions on Power Systems ; Vol. 29, issue. 2 , March , 2014 , p. 707-716 ; ISSN: 8858950 ; Abbaspour, A ; Fotuhi-Firuzabad, M ; Hajipour, E ; Sharif University of Technology
Abstract
Presence of energy hubs in the future vision of energy networks creates a great opportunity for system planners and operators to move towards more efficient systems. The role of energy hubs as the intermediate in multi-carrier energy (MCE) systems calls for a generic framework to study the new upcoming technical as well as economical effects on the system performance. In response, this paper attempts to develop a general optimization and modeling framework for coupled power flow studies on different energy infrastructures. This, as a large-scale nonlinear problem, is approached through a robust optimization technique, i.e., multi-agent genetic algorithm (MAGA). The proposed procedure...
Optimal charge scheduling of PHEV in a multi-carrier energy home
, Article 2014 14th International Conference on Environment and Electrical Engineering, EEEIC 2014 - Conference Proceedings ; 2014 , p. 199-203 ; ISBN: 9781480000000 ; Fotuhi-Firuzabad, M ; Sharif University of Technology
Abstract
The presence of different energy carriers as well as the advent of new multi-generation technologies such as combined heat and power (CHP) at homes necessitates designing an integrated model for optimal operation of such multi-carrier energy home. A residential energy hub model including a CHP and a Plug-in hybrid electric vehicle (PHEV) is presented in this paper to show the multi-carrier energy system operation. In addition, this paper proposes an optimization-based formulation for PHEV charging control in the residential energy hub. The payment cost is minimized for the charge scheduling of PHEV through optimization of the residential energy hub operation in response to the...
Multiagent genetic algorithm: An online probabilistic view on economic dispatch of energy hubs constrained by wind availability
, Article IEEE Transactions on Sustainable Energy ; Vol. 5, issue. 2 , 2014 , p. 699-708 ; ISSN: 19493029 ; Dehghanian, P ; Fotuhi-Firuzabad, M ; Abbaspour, A ; Sharif University of Technology
Abstract
Multiple energy carriers (MECs) have been broadly engrossing power system planners and operators toward a modern standpoint in power system studies. Energy hub, though playing an undeniable role as the intermediate in implementing the MECs, still needs to be put under examination in both modeling and operating concerns. Since wind power continues to be one of the fastest-growing energy resources worldwide, its intrinsic challenges should be also treated as an element of crucial role in the vision of future energy networks. In response, this paper aims to concentrate on the online economic dispatch (ED) of MECs for which it provides a probabilistic ED optimization model. The presented model...
Optimising operational cost of a smart energy hub, the reinforcement learning approach
, Article International Journal of Parallel, Emergent and Distributed Systems ; 2014 ; ISSN: 17445760 ; Sheikhi, A ; Ranjbar, A. M ; Sharif University of Technology
Abstract
The concept of smart grid (SG) has been introduced to improve the operation of the power systems. In modern structures of power systems, different reasons prompt researchers to suggest integrated analysis of multi-carrier energy systems. Considering synergy effects of the couplings between different energy carriers and utilising intelligent technologies for monitoring and controlling of energy flow may change energy system management in the future. In this paper, we propose a new solution which is entitled ‘smart energy hub’ (SEH) that models a multi-carrier energy system in a SG. SEH solutions allow homeowners to manage their energy consumption to reduce their electricity and gas bill. We...
Market based short term scheduling in energy hub in presence of responsive loads and renewable resources
, Article IET Conference Publications ; Volume 2013, Issue 615 CP , 2013 ; 9781849197328 (ISBN) ; Haghifam, M ; Sharif University of Technology
2013
Abstract
Energy hub as a super node in electrical distribution level has strong potential to receive energy in various carriers and after convert and store, satisfy hub required demands. On the other hand, CO2 emission and fossil fuels reduction raise up the need for integration of renewable based electricity generation such as wind and solar to energy hubs. In this paper, economical operation of energy hub including, stochastic wind generation, Combined Heat and Power (CHP) unit, boiler, and heat and electricity storages are modelled and analyzed. Responsive loads are used for more flexibility of the studied energy hub. Numerical result is observed through GAMS software to serve a commercial load in...
A novel method to determine the best size of CHP for an energy hub system
, Article 2011 2nd International Conference on Electric Power and Energy Conversion Systems, EPECS 2011 ; 2011 ; 9781457708060 (ISBN) ; Ranjbar, A. M ; Safe, F ; IEEE; Power and Energy Society (IEEE PES); Abu Dhabi Water and Electricity Authority ; Sharif University of Technology
Abstract
Today, the interest on distributed generation has been increasing, especially due to technical development on generation systems that meet environmental and energy policy concerns. One of the most important distributed energy technologies is Combined Heat and Power (CHP). CHP is small and self-contained electric generation plan that can provide power for household applications, commercial or industrial facilities and hence its applications are overtly increasing. It can reduce power loss and enhance service reliability in distribution systems. One of the influential factors for the users is the purchasing cost of CHP which is largely dependent on its type, capacity and efficiency. Therefore...
CHP optimized selection methodology for a multi-carrier energy system
, Article 2011 IEEE PES Trondheim PowerTech: The Power of Technology for a Sustainable Society, POWERTECH 2011 ; 2011 ; 9781424484195 (ISBN) ; Mozafari, B ; Ranjbar, A. M ; Sharif University of Technology
Abstract
Today, the interest on distributed generation has been increasing, especially due to technical development on generation systems that meet environmental and energy policy concerns. One of the most important distributed energy technologies is Combined Heat and Power (CHP). CHP is small and self-contained electric generation plan that can provide power for household applications, commercial or industrial facilities and hence its applications are overtly increasing. It can reduce power loss and enhance service reliability in distribution systems. One of the influential factors for the users is the purchasing cost of CHP which is largely dependent on its type, capacity and efficiency. Therefore...
CHP optimized selection methodology for an energy hub system
, Article 2011 10th International Conference on Environment and Electrical Engineering, EEEIC.EU 2011 - Conference Proceedings, 8 May 2011 through 11 May 2011 ; May , 2011 , Page(s): 1 - 5 ; 9781424487820 (ISBN) ; Ranjbar, A. M ; Safe, F ; Mahmoodi, M ; Sharif University of Technology
2011
Abstract
Today, the interest on distributed generation has been increasing, especially due to technical development on generation systems that meet environmental and energy policy concerns. One of the most important distributed energy technologies is Combined Heat and Power (CHP). CHP is small and self-contained electric generation plan that can provide power for household applications, commercial or industrial facilities and hence its applications are overtly increasing. It can reduce power loss and enhance service reliability in distribution systems. One of the influential factors for the users is the purchasing cost of CHP which is largely dependent on its type, capacity and efficiency. Therefore...
Modeling and optimization of a network of energy hubs to improve economic and emission considerations
, Article Energy ; Volume 93 , December , 2015 , Pages 2546-2558 ; 03605442 (ISSN) ; Elkamel, A ; Fowler, M ; Sattari, S ; Roshandel, R ; Hajimiragha, A ; Walker, S ; Entchev, E ; Sharif University of Technology
Elsevier Ltd
2015
Abstract
Energy hubs that incorporate a variety of energy generation and energy transformation technologies can be used to provide the energy storage needed to enable the efficient operation of a ‘smart energy network’. When these hubs are combined as a network and allowed to exchange energy, they create efficiency advantages in both financial and environmental performance. Further, the interconnectedness of the energy network design provides an added layer of reliability. In this paper, a complex network of energy hubs is modeled and optimized under different scenarios to examine both the financial viability and potential reduction of greenhouse gas emissions. Two case studies consisting of two and...
Load management in a residential energy hub with renewable distributed energy resources
, Article Energy and Buildings ; Volume 107 , November , 2015 , Pages 234-242 ; 03787788 (ISSN) ; Fotuhi Firuzabad, M ; Sharif University of Technology
Elsevier Ltd
2015
Abstract
This paper presents a residential energy hub model for a smart multi-carrier energy home consisting of plug-in hybrid electric vehicle (PHEV), combined heat and power (CHP), solar panels, and electrical storage system (ESS). The energy hub inputs are electricity and natural gas that provide electrical and heat demands at the output ports. In this paper, an optimization-based program is proposed to determine the optimal operation mode of the energy hub, to manage the energy consumption of responsive appliances, to schedule charging/discharging of PHEV and the storage system, and to coordinate solar panels operation with household responsive demand in response to day-ahead time-varying tariffs...
Integrated demand side management game in smart energy hubs
, Article IEEE Transactions on Smart Grid ; Volume 6, Issue 2 , 2015 , Pages 675-683 ; 19493053 (ISSN) ; Rayati, M ; Bahrami, S ; Ranjbar, A. M ; Sharif University of Technology
Abstract
The presence of energy hubs and the advancement in smart grid technologies have motivated system planners to deploy intelligent multicarrier energy systems entitled "smart energy hub" (S.E. Hub). In this paper, we model S.E. Hub, and propose a modern energy management technique in electricity and natural gas networks based on integrated demand side management (IDSM). In conventional studies, energy consumption is optimized from the perspective of each individual user without considering the interactions with each other. Here, the interaction among S.E. Hubs in IDSM program is formulated as a noncooperative game. The existence and uniqueness of a pure strategy Nash equilibrium (NE) is proved....
Optimising operational cost of a smart energy hub, the reinforcement learning approach
, Article International Journal of Parallel, Emergent and Distributed Systems ; Volume 30, Issue 4 , Oct , 2015 , Pages 325-341 ; 17445760 (ISSN) ; Sheikhi, A ; Ranjbar, A. M ; Sharif University of Technology
Taylor and Francis Ltd
2015
Abstract
The concept of smart grid (SG) has been introduced to improve the operation of the power systems. In modern structures of power systems, different reasons prompt researchers to suggest integrated analysis of multi-carrier energy systems. Considering synergy effects of the couplings between different energy carriers and utilising intelligent technologies for monitoring and controlling of energy flow may change energy system management in the future. In this paper, we propose a new solution which is entitled smart energy hub (SEH) that models a multi-carrier energy system in a SG. SEH solutions allow homeowners to manage their energy consumption to reduce their electricity and gas bill. We...
A cloud computing framework on demand side management game in smart energy hubs
, Article International Journal of Electrical Power and Energy Systems ; Volume 64 , January , 2015 , Pages 1007-1016 ; 01420615 (ISSN) ; Rayati, M ; Bahrami, S ; Ranjbar, A. M ; Sattari, S ; Sharif University of Technology
Elsevier Ltd
2015
Abstract
The presence of energy hubs in the future vision of energy networks creates an opportunity for electrical engineers to move toward more efficient energy systems. At the same time, it is envisioned that smart grid can cover the natural gas network in the near future. This paper modifies the classic Energy Hub model to present an upgraded model in the smart environment entitling "Smart Energy Hub". Supporting real time, two-way communication between utility companies and smart energy hubs, and allowing intelligent infrastructures at both ends to manage power consumption necessitates large-scale real-time computing capabilities to handle the communication and the storage of huge transferable...
Energy Hub optimal sizing in the smart grid; Machine learning approach
, Article 2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015, 18 February 2015 through 20 February 2015 ; Feb , 2015 ; 9781479917853 (ISBN) ; Rayati, M ; Ranjbar, A. M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2015
Abstract
The interests in 'Energy Hub' (EH) and 'Smart Grid' (SG) concepts have been increasing, in recent years. The synergy effect of the coupling between electricity and natural gas grids and utilizing intelligent technologies for communicating, may change energy management in the future. A new solution entitling 'Smart Energy Hub' (S. E. Hub) that models a multi-carrier energy system in a SG environment studied in this paper. Moreover, the optimal size of CHP, auxiliary boiler, absorption chiller, and also transformer unit as main elements of a S. E. Hub is determined. Authors proposed a comprehensive cost and benefit analysis to optimize these elements and apply Reinforcement Learning (RL)...
An autonomous demand response program for electricity and natural gas networks in smart energy hubs
, Article Energy ; Volume 89 , September , 2015 , Pages 490-499 ; 03605442 (ISSN) ; Bahrami, S ; Ranjbar, A. M ; Sharif University of Technology
Elsevier Ltd
2015
Abstract
The development of technologies such as micro turbines and gas furnaces has been the major driving force towards integration of electricity and natural gas networks in the EH (energy hubs). Besides, the existing power grids are getting smarter by implementing the new generation of information technologies and communication systems. In smart grid, the electricity suppliers can modify the customers' electrical load consumption by employing appropriate scheduling schemes such as DR (demand response) programs. In this paper, we consider the S. E. Hubs (smart energy hubs) framework, in which the customers can use EMS (energy management system) to access to the electricity and natural gas prices...
Development of the energy hub networks based on distributed energy technologies
, Article Simulation Series, 26 July 2015 through 29 July 2015 ; Volume 47, Issue 10 , 2015 , Pages 216-223 ; 07359276 (ISSN) ; Elkamel, A ; Sattari Khavas, S ; Fowler, M ; Roshandel, R ; Elsholkami, M ; Sharif University of Technology
The Society for Modeling and Simulation International
2015
Abstract
In this paper the creation of multiple energy hubs that make up a complex energy network are modeled and optimized for a selection of six scenarios to examine both their financial viability and potential reduction of greenhouse gas emissions. As a proposed case study scenario for the model, three energy hubs are considered: a 'residential complex (RC)', a 'commercial shopping plaza (CS)', and a 'school (S)'. The use of combined heat and power systems, solar photovoltaic, solar collectors and network interaction are also examined for their impact on efficiency and cost. The modeling is undertaken and carried out by General Algebraic Modeling System (GAMS). It is shown that cost can be reduced...
Planning and Optimization of an On-site Energy Service Network for a Rural Region
, M.Sc. Thesis Sharif University of Technology ; Avami, Akram (Supervisor)
Abstract
Nowadays, classic energy supply systems are rapidly shifting towards more efficient, with less pollution, and more economic energy systems. In the meantime, the growing dependence of human activities on energy sources and the reduction of fossil fuels resources as the main source of energy supply at present time, has led to fundamental changes in the energy policy of communities. The use of distributed power generation systems utilizing renewable energy sources is one of the solutions that have been proposed in this regard. This research aims to develop a local energy supply network for a specific rural district using energy sources in place, so that the area is energy self-sufficient and...
Demand side management in a group of Smart Energy Hubs as price anticipators; The game theoretical approach
, Article IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015, 18 February 2015 through 20 February 2015 ; 2015 ; 9781479917853 (ISBN) ; Rayati, M ; Bahrami, S ; Ranjbar, A. M ; Sharif University of Technology
Abstract
In recent years, there have been significant developments of applications related to 'Energy Hub' and 'Smart Grid' concepts. Synergy effect of the coupling between electricity and natural gas infrastructures, and approaching energy systems to the smart grid environment leads us to introduce a new solution. This solution is entitled 'Smart Energy Hub' (S. E. Hub). Simply stated, the S. E. Hub models a multicarrier energy system in a smart grid environment. The evolution of the smart grid heavily relies on the utilization and the integration of modern information technologies. Therefore, we suggest that the information technology industry should be involved to facilitate the information...