Search for: energy-management
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    Centralized home energy management in multi-carrier energy frameworks

    , Article 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings, 10 June 2015 through 13 June 2015 ; 2015 , Pages 1562-1566 ; 9781479979936 (ISBN) Rastegar, M ; Fotuhi-Firuzabad, M ; Zareipour, H ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2015
    This paper proposes a centralized optimization-based home energy management (HEM) scheme in a macro energy hub structure. An energy hub management system manages the aggregated load of a group of residential micro energy hubs to minimize the total load deviation. The operational characteristics of the household appliances and the threshold energy cost of the customers are incorporated in the propounded method to provide the customers' comfort. Numerical studies show the effectiveness of the proposed method performance  

    Assessing swedish foundries energy management program

    , Article Energies ; Volume 11, Issue 10 , 2018 ; 19961073 (ISSN) Sa, A ; Thollander, P ; Cagno, E ; Rafiee, M ; Sharif University of Technology
    With regard to increased sustainability, managers not only need to know WHAT is needed for their company to improve, but also HOW to do so in detail is equally important. Energy management (EnM) is a pillar to the transformation of industrial energy systems towards enhanced energy efficiency and increased sustainability. One way to develop more and improve EnM both practically and theoretically is to shed light on how the combination of techniques and operation can contribute to successful EnM. This paper, therefore, through investigation of 10 Swedish foundries aims to present the structure of the energy strategy and associated practices at first; second, to assess industry’s EnM program... 

    Optimization-based home energy management in the presence of solar energy and storage

    , Article 2013 21st Iranian Conference on Electrical Engineering ; May , 2013 , Page(s): 1 - 6 ; 9781467356343 (ISBN) Mohammadi, S ; Momtazpour, M ; Sanaei, E ; Sharif University of Technology
    New technologies such as smart homes and appliances and renewable energy production have been attracting much attention in recent years. In practice, the management of these technologies to get the minimum household payment has become a challenge due to the time-varying electricity price. In this paper, we propose a real time energy management system to manage the appliances and storages. The solar energy is charged in the storages and used together with the grid electricity to supply the appliances. The proposed management system uses an ILP-based Home Energy Management (ILPHEM) optimization engine. ILPHEM schedules appliances requests and storage usage based on updated real time input data... 

    Industrial energy management systems and energy-related decision-making

    , Article Energies ; Volume 11, Issue 10 , 2018 ; 19961073 (ISSN) Sa, A ; Thollander, P ; Rafiee, M ; Sharif University of Technology
    MDPI AG  2018
    Transitions is today’s debate in almost all topics both in academia and practice. Energy transitions among others, have received relatively more attention, due to the global demand for increasing energy efficiency and lowering environmental impacts. In recent decades, energy management systems, through implementing energy management programs and related practices within industrial companies, have played a vital role in enhancing industrial energy efficiency performance levels. However, still there are problems at very first step of energy management program installation, which is decision-making. Despite market and non-market failures, lack of information, inadequate knowledge, the... 

    Using Wireless Sensor Network for Energy Management of Future Homes

    , M.Sc. Thesis Sharif University of Technology Mohammadi, Sattar (Author) ; Sanaei, Esmaeil (Supervisor)
    We present a home energy management system that is able to manage home energy demand and resources to achieve minimum household payment in electricity dynamic pricing.Communication is used to collect needed data from the home energy system members and users in order toimprove demand and resources management. Some of the needed data comes from appliances and solar panels by wireless sensor network and some other is received from home users by a user interface.
    Two algorithms are proposed that the first algorithm goal is to minimizing household payment and the second algorithm goals are flexible implementiation and decreasing household payment. To decrease household payment, these... 

    Developing a two-level framework for residential energy management

    , Article IEEE Transactions on Smart Grid ; Volume 9, Issue 3 , May , 2018 , Pages 1707-1717 ; 19493053 (ISSN) Rastegar, M ; Fotuhi Firuzabad, M ; Moeini Aghtai, M ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2018
    Residential energy management (REM) program is a demand response (DR) tool that automatically manages energy consumption of controllable household appliances to improve the energy consumption profile of a house according to electricity price. REM intends not only to improve technical aspects of distribution systems but also motivate customers for active participation in DR programs. In this regard, this paper proposes a two-level REM framework. In the first level, each customer runs an optimization problem to minimize his payment cost and sends the desired operation scheduling of appliances and the payment cost to the system operator. In the second level, a multiobjective (MO) optimization... 

    A two-stage flexibility-oriented stochastic energy management strategy for multi-microgrids considering interaction with gas grid

    , Article IEEE Transactions on Engineering Management ; 2021 ; 00189391 (ISSN) Kamrani, F ; Fattaheian Dehkordi, S ; Gholami, M ; Abbaspour, A ; Fotuhi Firuzabad, M ; Lehtonen, M ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2021
    Introduction of renewable energy sources (RESs) and independently operated multi-microgrid (MMG) systems have led to new issues in the management of power systems. In this context, uncertainty associated with RESs as well as intense ramps inflicted on the network called system flexibility constraints have raised new challenges in power systems. The new condition necessitates the implementation of novel frameworks that enable local system operators to efficiently manage the available resources to cope with the flexibility-ramp constraints. Moreover, the new framework should facilitate energy management in a system with an MMG structure considering uncertainty of RESs. Consequently, in this... 

    Developing an Applied Model for Energy Management in Dairy Production Industry

    , M.Sc. Thesis Sharif University of Technology Bahmanpour khalesi, Ahmad Reza (Author) ; Mokhtar, Ali Reza (Supervisor) ; Miremadi, Ali Reza (Supervisor)
    Reviewing trends of energy consumption in the world reveals that sooner or later energy resources will be depleted. This concerning rate of consumption has brought about more greenhouse gases (GHG) emission influencing deleteriously on environment and climate. Human has continued energy consumption to maintain and improve the quality of his life through industrial production. Industry as a significant energy user owns considerable contribution to this consumption. Several attempts have been carried out to develop energy management systems in order to improve the energy efficiency of industrial sectors. Whilst they are comprehensive and could be applied to any sector, there is lack of... 

    Development of a Water and Energy Management Tool to Retrofit the Crude Oil Distillation Unit of a Refinery

    , M.Sc. Thesis Sharif University of Technology Charkhestani, Saeed (Author) ; Avami, Akram (Supervisor)
    The aim of this research is retrofit of a crude oil distillation refinery unit in terms of water and energy. To do this, the refinery distillation unit is ategorized to different zones from the perspective of water and energy to determine the saving potentials. The energy network consists of the four sub-types includes exchangers and the water network consist of seven sub-sets including water and steam. In the next stage, the retrofit of the energy network and the process heat exchangers are done by using pinch analysis in the commercial software and discussed the economical possibility of pinch analysis for 20 heat exchangers in the crude oil preheating unit. Using the flow of flashed crude... 

    Optimising operational cost of a smart energy hub, the reinforcement learning approach

    , Article International Journal of Parallel, Emergent and Distributed Systems ; 2014 ; ISSN: 17445760 Rayati, M ; Sheikhi, A ; Ranjbar, A. M ; Sharif University of Technology
    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... 

    PID Neural Network control of SUT building energy management system

    , Article Proceedings of the 2005 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2005, Monterey, CA, 24 July 2005 through 28 July 2005 ; Volume 1 , 2005 , Pages 682-686 Fardadi, M ; Ghafari, A. S ; Hannani, S. K ; Sharif University of Technology
    PID Neural Network controller design for Sharif University of Technology (SUT) Building Energy Management System (BEMS) is addressed in this paper. The most important characteristics of process systems are time delay with model uncertainties. Artificial neural networks can perform adaptive controller properties through learning processes. FID neural network has the advantages of both conventional PID controllers and the neural structure. Simulation results using Modified Hooke-Jeeves Optimization Method show that this controller has short convergence time and quick learning speed and the performance of the closed loop system is very good. © 2005 IEEE  

    Design and Control of Parallel Hybride Electric Samand Vehicle

    , M.Sc. Thesis Sharif University of Technology Parvini Oskoui, Yasha (Author) ; Vossoughi, Gholamreza (Supervisor)
    The final target of this research is to design an appropriate intelligent control strategy for energy management purposes in a well designed parallel hybrid electric vehicle. In the first step, the conventional “Samand” vehicle has been simulated using real data for vehicle parameters and power train components, has been simulated. Using experimental results, simulation results are validated. In the second step due to the primarily defined parallel electric assist control strategy (PEACS) for the hybrid electric vehicle and performance requirements, components such as engine, electric machine and battery pack were selected and sized. In the final step a Fuzzy Logic Controller (FLC) has been... 

    Cooperative energy management of hybrid DC renewable grid using decentralized control strategies

    , Article Energies ; Volume 9, Issue 11 , 2016 ; 19961073 (ISSN) Beykverdi, M ; Jalilvand, A ; Ehsan, M ; Sharif University of Technology
    MDPI AG  2016
    This paper attempted to control a hybrid DC microgrid in islanded operation mode using decentralized power management strategies. Proposed adaptive I/V characteristic for hybrid photovoltaic (PV) and battery energy storage system (BESS) and wind turbine generator (WTG) adapts the distributed energy resources (DER) behavior independently in accordance with the load demand. Hence, the PV module can spend its maximum power on load demand and spend the extra power for charging the BESS, which will regulate DC bus voltage and maintain the power balance within the microgrid. When load demand is beyond the maximum generation power of PV unit, WTG will supply the energy shortage. The proposed... 

    Energy management of smart home considering residences' satisfaction and PHEV

    , Article 2018 International Conference on Smart Energy Systems and Technologies, SEST 2018, 10 September 2018 through 12 September 2018 ; 2018 ; 9781538653265 (ISBN) Ebrahimi, M ; Shokri Gazafroudi, A ; Corchado, J. M ; Ebrahimi, M ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2018
    Regarding the increasing number of electrical devices in the smart homes that leads to increase in total electricity consumption and cost, it is essential to use energy management methods to reduce the electricity cost. However, this can cause resident's dissatisfaction. Hence, it is important to define a method in which cost and dissatisfaction be optimized simultaneously. Among different services, an electric vehicle is the one that can be used as an energy storage system, so it can reduce the daily cost despite of increasing the total energy consumption. In this paper, we study the effect of the EV on the cost and dissatisfaction in our proposed method. © 2018 IEEE  

    Managing distributed energy resources (DERS) through virtual power plant technology (VPP): a stochastic information-gap decision theory (IGDT) approach

    , Article Iranian Journal of Science and Technology - Transactions of Electrical Engineering ; Volume 44, Issue 1 , 2020 , Pages 279-291 Alahyari, A ; Ehsan, M ; Moghimi, M ; Sharif University of Technology
    Springer  2020
    As the number of distributed energy resources (DERs) increases, so would their influences on the power systems. Toward managing the intermittent nature of DERs, and providing market participation capability, the concept of virtual power plant (VPP) has been developed in the smart grid era. This paper proposes a novel offering strategy method for a VPP consisting of wind power generation along with storage capacity and flexible demand. In the proposed method, two different sources of uncertainty are addressed: stochastic method, applied in dealing with market price uncertainty, and information-gap decision theory (IGDT), incorporated in the offering model counting for wind power production... 

    Introduction to FEW nexus

    , Article Food-Energy-Water Nexus Resilience and Sustainable Development: Decision-Making Methods, Planning, and Trade-Off Analysis ; 2020 , Pages 29-56 Lotfi, A ; Mohammadi Ivatloo, B ; Asadi, S ; Sharif University of Technology
    Springer International Publishing  2020
    Food, energy, and water (FEW) resources have high interconnection and interdependencies as each resource can be affected by the other two. Thus, the Nexus approach is introduced and implemented to manage FEW. This chapter discusses each sector of FEW: availability, production, consumption, interaction, and interconnection between them, and finally suggests some action to improve the operation of the Nexus. © Springer Nature Switzerland AG 2020  

    Audio segmentation and classification based on a selective analysis scheme

    , Article Proceedings - 10th International Multimedia Modelling Conference, MMM 2004, Brisbana, 5 January 2004 through 7 January 2004 ; 2004 , Pages 42-48 ; 0769520847 (ISBN); 9780769520841 (ISBN) Ghaemmaghami, S ; Sharif University of Technology
    This paper addresses a new approach to segmentation and classification of audio through analysis of a smaller set of selective frames, which are identified by temporal decomposition (TD). These frames are located at the most steady instants, or event centroids, within a given block of the signal, which yield the maximal diversity over the set of selected features. Based on this selection scheme, the number of frames used in the analysis is reduced by at least 40%, while the temporal resolution is doubled as compared to that in typical audio classifiers. By constructing a classification system to segment audio into speech, music, speech-music, and others, it is shown that the proposed method... 

    Simulation and Implementation of Active Energy Management Algorithm on Residential Photovoltaic System with Storage

    , M.Sc. Thesis Sharif University of Technology Ghafouri Varzaneh, Saeed (Author) ; Abbaspour, Ali (Supervisor)
    In majority of the (standalone or grid-connected) PV Systems, predefined rule-based algorithms are utilized in order to manage and control the flow of power. The function of these algorithms is to send the generated energy from solar panels either to load for consumption, or to battery for storage, or to the grid for sale. Their performance is based on predefined instructions and regardless of load change and consumption patterns. Therefore the total efficiency of these systems depend greately upon individual user’s load type and consumption pattern. In current research, an optimum and dynamic energy management algorithm is proposed using dynamic programming (DP) method, in order to increase... 

    Modeling Solar Hydrogen Fuel Cell System for Residential Application

    , M.Sc. Thesis Sharif University of Technology Sayedin, Farid (Author) ; Roshandel, Ramin (Supervisor)
    The gradual exhaustion of oil and gas resources and the various problems involved in their pollution makes it necessary to promote a renewable energy system. One of the most interesting developments of standalone systems based on the utilization of hydrogen is solar hydrogen system. Central and southern Iran exhibit an excellent solar climate which makes them ideal places for solar hydrogen systems. The economy of Iran is based on oil and it has one of the largest reserves of oil and gas in the world but the reserves would not be enough to meet the domestic and export markets starting in three to four decades. Moreover, elimination of energy subsidies in Iran, will led to more tendencies to... 

    Improving Power Management System in All-Electric Ships

    , Ph.D. Dissertation Sharif University of Technology Nasiri, Saman (Author) ; Parniani, Mostafa (Supervisor) ; Blaabjerg, Frede (Co-Supervisor)
    Development of the electric propulsion system and its applications in all-electric ships (AES) has made proper operating approaches for their power system more essential than ever. The proposed solutions should lower the design cost, operation cost, and greenhouse gas emission while increasing the reliability and power quality of the vessel. Because of abrupt changes in propellers consumption power, it is critical to consider the hydrodynamic phenomena and examine the propulsion system torque variations in the power management system at the design stage.In this dissertation, considering the importance of evaluating the operation methods in different operating conditions, such as sea waves or...