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    Integrating load reduction into wholesale energy market with application to wind power integration

    , Article IEEE Systems Journal ; Vol. 6, issue. 1 , 2012 , p. 35-45 ; ISSN: 19328184 Parvania, M ; Fotuhi-Firuzabad, M ; Sharif University of Technology
    Abstract
    Renewable energy resources, notably wind power, are expected to provide considerable portion of the world energy requirements in the near future. Many system operators around the world are challenged by the problems associated with integrating these intermittent resources into the grid. As one of the potential solutions, demand response (DR) is expected to play a major role for mitigating integration issues of intermittent renewable energy resources. In this context, this paper proposes a DR program which helps to integrate wind power by reshaping the load of the system. The DR program provides a framework to procure load reduction from DR resources in the wholesale energy market. The... 

    A multi objective framework for solving economic load dispatch problem including stochastic nature of wind power

    , Article International Review of Electrical Engineering ; Volume 8, Issue 1 , 2013 , Pages 362-368 ; 18276660 (ISSN) Mohseni Mansur, S. M ; Pirayesh, A ; Abdollahi Mansoorkhani, H. R ; Abedini Duki, E ; Sharif University of Technology
    2013
    Abstract
    With increasing concern of environmental protection and economic considerations, Wind energy has drawn much attention recently due to its high benefits to the reduction of emissions and reduction of dependency on fossil fuels. In this paper, a load dispatch model is developed for the system consisting of both thermal generators and wind turbine by GAMS Software and the recently introduced optimization strategy, Imperialist Competitive Algorithm (ICA). In addition, transmission loss is considered which approximate the system losses as a quadratic function of the real power generation with B-losses coefficients. To better represent the conditions in real power systems, the cost of modern... 

    A new prediction model based on cascade NN for wind power prediction

    , Article Computational Economics ; March , 2018 , Pages 1-25 ; 09277099 (ISSN) Torabi, A ; Kiaian Mousavy, S. A ; Dashti, V ; Saeedi, M ; Yousefi, N ; Sharif University of Technology
    Springer New York LLC  2018
    Abstract
    This paper presents a new prediction model based on empirical mode decomposition, feature selection and hybrid forecast engine. The whole structure of proposed model is based on nonstationarity and non-convex nature of wind power signal. The hybrid forecast engine consists of three main stages as; empirical mode decomposition, an intelligent algorithm and three stage neural network. All parameters of proposed neural network will be optimized by intelligent algorithm. Effectiveness of the proposed model is tested with real-world hourly data of wind farms in Canada, Spain and Texas. In order to demonstrate the validity of the proposed model, it is compared with several other wind speed and... 

    A new prediction model based on cascade NN for wind power prediction

    , Article Computational Economics ; Volume 53, Issue 3 , 2019 , Pages 1219-1243 ; 09277099 (ISSN) Torabi, A ; Kiaian Mousavy, S. A ; Dashti, V ; Saeedi, M ; Yousefi, N ; Sharif University of Technology
    Springer New York LLC  2019
    Abstract
    This paper presents a new prediction model based on empirical mode decomposition, feature selection and hybrid forecast engine. The whole structure of proposed model is based on nonstationarity and non-convex nature of wind power signal. The hybrid forecast engine consists of three main stages as; empirical mode decomposition, an intelligent algorithm and three stage neural network. All parameters of proposed neural network will be optimized by intelligent algorithm. Effectiveness of the proposed model is tested with real-world hourly data of wind farms in Canada, Spain and Texas. In order to demonstrate the validity of the proposed model, it is compared with several other wind speed and... 

    Integrating load reduction into wholesale energy market with application to wind power integration

    , Article IEEE Systems Journal ; Volume 6, Issue 1 , 2012 , Pages 35-45 ; 19328184 (ISSN) Parvania, M ; Fotuhi Firuzabad, M ; Sharif University of Technology
    2012
    Abstract
    Renewable energy resources, notably wind power, are expected to provide considerable portion of the world energy requirements in the near future. Many system operators around the world are challenged by the problems associated with integrating these intermittent resources into the grid. As one of the potential solutions, demand response (DR) is expected to play a major role for mitigating integration issues of intermittent renewable energy resources. In this context, this paper proposes a DR program which helps to integrate wind power by reshaping the load of the system. The DR program provides a framework to procure load reduction from DR resources in the wholesale energy market. The... 

    An approach to divide wind power capacity between day-ahead energy and intraday reserve power markets

    , Article IEEE Systems Journal ; Volume 16, Issue 1 , 2022 , Pages 1123-1134 ; 19328184 (ISSN) Tavakkoli, M ; Fattaheian Dehkordi, S ; Pourakbari Kasmaei, M ; Liski, M ; Lehtonen, M ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2022
    Abstract
    Wind power producers have recently gained a significant penetration in the electric power network, which might cause some challenges for the system operation due to the uncertainties in the generated power. In this way, wind power owners may offer different services, such as providing reserve capacity besides their conventional role of delivering just energy. Currently, conventional generators are the main responsible for providing some reserve in case of uncertainty in renewable generation and demand changes. Therefore, this article introduces a novel approach that allows wind power producers to participate in both energy and reserve markets alongside conventional generators. A two-stage... 

    Corrective voltage control scheme considering demand response and stochastic wind power

    , Article IEEE Transactions on Power Systems ; Vol. 29, issue. 6 , 2014 , pp. 2965-2973 ; ISSN: 08858950 Rabiee, A ; Soroudi, A ; Mohammadi-Ivatloo, B ; Parniani, M ; Sharif University of Technology
    Abstract
    This paper proposes a new approach for corrective voltage control (CVC) of power systems in presence of uncertain wind power generation and demand values. The CVC framework deals with the condition that a power system encounters voltage instability as a result of severe contingencies. The uncertainty of wind power generation and demand values is handled using a scenario-based modeling approach. One of the features of the proposed methodology is to consider participation of demand-side resources as an effective control facility that reduces control costs. Active and reactive redispatch of generating units and involuntary load curtailment are employed along with the voluntary demand-side... 

    Investigating the fluctuations of solar and wind energy

    , Article Iranian Journal of Physics Research ; Volume 19, Issue 2 , 2019 , Pages 249-261 ; 16826957 (ISSN) Rahimi Tabar, M. R ; Madanchi, A ; Absalan, M. R ; Anvari, M ; Sharif University of Technology
    Isfahan University of Technology  2019
    Abstract
    A time series study of the electrical energy generated by wind turbines and solar cells shows that the energy produced has a lot of fluctuations due to the geographic conditions. These ups and downs have caused not only the share of these sources to be marginal, but also they lead to the volatility of electric power plants. By examining several different data from different countries and regions with the frequency of second and minute, we show that different scale behaviors exist at different time intervals and reveal their other random and nonlinear characteristics. We also compare the non-Gaussian behavior of these regions together, showing that studying the properties of such data helps... 

    A new approach to reduce the dynamic order of induction generators

    , Article International Journal of Power and Energy Systems ; Volume 27, Issue 4 , 2007 , Pages 315-319 ; 10783466 (ISSN) Varahram, M. H ; Behzadi Rafi, S ; Sharif University of Technology
    Acta Press  2007
    Abstract
    Various attempts have been made to derive linearized, reduced order models of induction generators. Due to the fact that there is usually numerous number of these machines in wind power plants, these models provide great facilities in calculations, and therefore are used widely in power system transient stability studies. In this paper, some of these methods are discussed and compared and then a method known as "balanced realizations" is used to reduce the dynamic order of the machine. Computer simulation shows that the last method markedly improves the accuracy of the resulting reduced order model. The improvement is demonstrated by comparing the response characteristics predicted by each... 

    Use of a hybrid wind—solar—diesel—battery energy system to power buildings in remote areas: A case study

    , Article Sustainability (Switzerland) ; Volume 13, Issue 16 , 2021 ; 20711050 (ISSN) Almutairi, K ; Hosseini Dehshiri, S. S ; Hosseini Dehshiri, S. J ; Mostafaeipour, A ; Issakhov, A ; Techato, K ; Sharif University of Technology
    MDPI  2021
    Abstract
    The emerging environmental consequences of overdependence on fossil fuels have pushed many countries to invest in clean and renewable sources of power. Countries like Iran where these sources can be found in abundance can take advantage of this potential to reduce their dependence on fossil fuels. This study investigated the feasibility of the standalone use of a hybrid renewable energy system (HRES) to power buildings in the Bostegan village in the Hormozgan province of Iran. Technical, economic, and environmental assessments were performed with the help of the Hybrid Optimization of Multiple Energy Resources (HOMER) software, and the optimal configuration for the system components was... 

    Use of a hybrid wind—solar—diesel—battery energy system to power buildings in remote areas: a case study

    , Article Sustainability (Switzerland) ; Volume 13, Issue 16 , 2021 ; 20711050 (ISSN) Almutairi, K ; Hosseini Dehshiri, S ; Hosseini Dehshiri, J ; Mostafaeipour, A ; Issakhov, A ; Techato, K ; Sharif University of Technology
    MDPI  2021
    Abstract
    The emerging environmental consequences of overdependence on fossil fuels have pushed many countries to invest in clean and renewable sources of power. Countries like Iran where these sources can be found in abundance can take advantage of this potential to reduce their dependence on fossil fuels. This study investigated the feasibility of the standalone use of a hybrid renewable energy system (HRES) to power buildings in the Bostegan village in the Hormozgan province of Iran. Technical, economic, and environmental assessments were performed with the help of the Hybrid Optimization of Multiple Energy Resources (HOMER) software, and the optimal configuration for the system components was... 

    A framework for activating residential HVAC demand response for wind generation balancing

    , Article IEEE Innovative Smart Grid Technologies, 3 November 2015 through 6 November 2015 ; 2015 ; 9781509012381 (ISBN) Ali, M ; Humayun, M ; Degefa, M ; Alahaivala, A ; Lehtonen, M ; Safdarian, A ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc 
    Abstract
    The integration of a great deal of intermittent renewable generation in future grids will require more operational flexibility. Residential demand response can provide the load shaping potentials thereby alleviating the need for operational flexibility. This paper intends to develop a centralized framework focusing on realization of domestic heating, ventilation, and air conditioning (HVAC) demand response capability for wind power balancing. In the proposed optimization model, energy consumption of HVAC loads is optimized to tackle the variability of wind power. The thermal comfort penalty is explicitly integrated in the objective function in order to oblige different customers' thermal... 

    Operational reliability studies of power systems in presence of energy storage systems

    , Article IEEE Transactions on Power Systems ; 2017 ; 08858950 (ISSN) Parvini, Z ; Abbaspour, A ; Fotuhi Firuzabad, M ; Moeini Aghtaie, M ; Sharif University of Technology
    Abstract
    This paper mainly focuses on operational reliability studies of modern power systems taking into consideration the effects of energy storage systems (ESSs). The aim is to develop a new evaluation tool to assess the effects of different factors such as penetration rate, operational strategies and capacities of the ESSs in determining the role of these systems as an operating reserve resource. In this regard, at first, some modifications are made to the PJM method aimed to precisely model the short-term variability in output generation of wind farms in reliability studies. Then, this algorithm is employed to examine the effects of ESSs operating strategies in operational reliability level of... 

    Application of edge theorem for robust stability analysis of a power system with participating wind power plants in automatic generation control task

    , Article IET Renewable Power Generation ; Volume 11, Issue 7 , 2017 , Pages 1049-1057 ; 17521416 (ISSN) Toulabi, M ; Bahrami, S ; Ranjbar, A. M ; Sharif University of Technology
    Institution of Engineering and Technology  2017
    Abstract
    This study investigates the dynamic participation of wind power plants (WPPs) in the automatic generation control (AGC) task. The pre-specified model of wind farm in the AGC studies has been used. It is shown that operating of WPPs at the command mode results in a significant improvement in the frequency behaviour of power system due to their faster response. However, the WPPs may change their operation mode from the command mode to the maximum power point mode according to the wind speed conditions and load variations. This reduces the improvement in the frequency response. In this condition, the shortage in the wind power should be compensated by the conventional units. Thus, the share of... 

    Prioritizing the effectiveness of a comprehensive set of demand response programs on wind power integration

    , Article International Journal of Electrical Power and Energy Systems ; Volume 107 , 2019 , Pages 149-158 ; 01420615 (ISSN) Hajibandeh, N ; Ehsan, M ; Soleymani, S ; Shafie khah, M ; Catalão, J. P. S ; Sharif University of Technology
    Elsevier Ltd  2019
    Abstract
    The environmental targets set by power sectors throughout the world are the main drivers toward increasing the share of variable renewable energy sources (VRESs). Growth of VRESs will lead to a higher demand for operational flexibility due to their stochastic nature. Traditionally, conventional generation units provide the major share of additional required flexibility that may result in a higher depreciation. Motivated by this challenge, this paper investigates the potential of Demand Response (DR) as an emerging alternative in systems with significant amounts of wind power. To this end, a comprehensive set of DR programs including tariff-based, incentive-based and combinational DR programs... 

    Low-speed wind energy harvesting from a vibrating cylinder and an obstacle cylinder by flow-induced vibration effect

    , Article International Journal of Environmental Science and Technology ; 2021 ; 17351472 (ISSN) Farsi, M ; Shariatzadeh, M. J ; Bijarchi, M. A ; Pournasiri Masouleh, E ; Shafii, M. B ; Sharif University of Technology
    Springer Science and Business Media Deutschland GmbH  2021
    Abstract
    An experimental setup has been developed to analyse the impact of cylinder transverse vibration caused by flow-induced vibration, and to improve wind energy harvesting from these vibrations. The setup consists of a cylinder mounted on four springs and is subjected to a uniform and steady flow of wind. In the first part, the effect of mounting a fixed cylinder as an obstacle with different diameters and distances from the downstream vibrating cylinder is investigated. It has been observed that the vibration amplitude on the wake of an unequal-sized obstacle is greatly amplified compared to the case of a single cylinder or an equal-sized cylinder. Numerical simulations has been conducted to... 

    UWB wireless: A scheme for SCADA communications in offshore wind farms

    , Article International Journal of Ultra Wideband Communications and Systems ; Volume 3, Issue 2 , 2015 , Pages 59-67 ; 1758728X (ISSN) Salehinejad, H ; Talebi, S ; Rashidinejad, M ; Sharif University of Technology
    Inderscience Enterprises Ltd  2015
    Abstract
    Utilisation of reliable communication technologies for data communication is a key challenge in smart grids. Due to specific characteristics of offshore wind farms (OWFs), wireless data communications is of interest for supervisory control and data acquisition (SCADA) communication between wind towers. The ultra-wideband (UWB) communication technology is one of the state-of-the-art communication technologies suitable for inexpensive, low-data rate, outdoor, long-range, communication applications. However, in order to employ it in OWFs, its link modelling and performance must first be well analysed comprehensively. In this paper, the UWB communication channel is modelled in OWFs and with... 

    Fuzzy based generation scheduling of power system with large scale wind farms

    , Article 2009 IEEE Bucharest PowerTech: Innovative Ideas Toward the Electrical Grid of the Future ; 2009 ; 9781424422357 (ISBN) Siahkali, H ; Vakilian, M ; Sharif University of Technology
    Abstract
    Wind power introduces a new challenge to system operators. Unlike conventional power generation sources, wind power generators supply intermittent power because of uncertainty in its resource. In a power system involved largescale wind power generation scenario, wind intermittency could oblige the system operator to allocate a greater reserve power, in order to compensate the possible mismatch between predicted and the actual wind power output. This would increase the total operation cost. This paper presents a new approach in fuzzy based generation scheduling (GS) problem using mixed integer nonlinear programming (MINLP). While the reserve requirements, load generation balance and wind... 

    Fuzzy generation scheduling for a generation company (GenCo) with large scale wind farms

    , Article Energy Conversion and Management ; Volume 51, Issue 10 , 2010 , Pages 1947-1957 ; 01968904 (ISSN) Siahkali, H ; Vakilian, M ; Sharif University of Technology
    Abstract
    Wind power is a promising alternative in power generation because of its tremendous environmental and social benefits. Generation scheduling (GS) is more important in a power system integrating wind farms. Unlike conventional power generation sources, wind power generators supply intermittent power because of uncertainty in resource. This paper presents a fuzzy approach to the generation scheduling problem of a GenCo considering uncertainties in parameters or constraints such as load, reserve and available wind power generation. The modeling of constraints is an important issue in power system scheduling. A fuzzy optimization approach is an approach that can be used to obtain the generation... 

    A high-accuracy hybrid method for short-term wind power forecasting

    , Article Energy ; Volume 238 , 2022 ; 03605442 (ISSN) Khazaei, S ; Ehsan, M ; Soleymani, S ; Mohammadnezhad Shourkaei, H ; Sharif University of Technology
    Elsevier Ltd  2022
    Abstract
    In this article, a high-accuracy hybrid approach for short-term wind power forecasting is proposed using historical data of wind farm and Numerical Weather Prediction (NWP) data. The power forecasting is carried out in three stages: wind direction forecasting, wind speed forecasting, and wind power forecasting. In all three phases, the same hybrid method is used, and the only difference is in the input data set. The main steps of the proposed method are constituted of outlier detection, decomposition of time series using wavelet transform, effective feature selection and prediction of each time series decomposed using Multilayer Perceptron (MLP) neural network. The combination of automatic...