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electric-power-system-interconnection
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Developing a stochastic framework to determine the static reserve requirements of high-wind penetrated power systems
, Article Journal of Intelligent and Fuzzy Systems ; Volume 29, Issue 5 , 2015 , Pages 2039-2046 ; 10641246 (ISSN) ; Abbaspour, A ; Fotuhi Firuzabad, M ; Moeini Aghtaie, M ; Sharif University of Technology
IOS Press
2015
Abstract
Operational and planning studies of high-wind penetrated power systems have well come to the light as a major concern of future energy systems. This paper focuses on the procedure of determining required static reserve of the high-wind penetrated power systems which has not been well accompanied by comprehensive analysis and proper modeling tools. To reach this goal, first, a probabilistic algorithm has been proposed to effectively model the variations in output generation of wind turbines. In this algorithm, the fuzzy c-means clustering method (FCM) is exploited as an efficient as well as robust clustering method to find the multi-state model of wind turbines output generation. Based on...
Reliability improvement of power system utilizing BESS with wind farm
, Article 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings, 10 June 2015 through 13 June 2015 ; 2015 , Pages 1120-1125 ; 9781479979936 (ISBN) ; Fotuhi-Firuzabad, M ; Abbaspour, A ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2015
Abstract
In this paper, the effect of wind power generation on power system reliability is investigated. Furthermore, reliability improvement of power system using integrated battery energy storage system and wind farm will be evaluated. Growing demand for electrical energy, gradual diminishing of fossil fuel resources and environmental pollution due to continuous exploitation of them, have led to inevitable change of energy sources in power generation. Due to the random nature of wind speed, the power output of a wind farm is fluctuating; as a result, it does not have a proper control capability. The growing penetration of wind power generation in power system could cause various problems in...
Reliability modeling of PMUs using fuzzy sets
, Article IEEE Transactions on Power Delivery ; Volume 25, Issue 4 , August , 2010 , Pages 2384-2391 ; 08858977 (ISSN) ; Bagheri Shouraki, S ; Fotuhi Firuzabad, M ; Shahidehpour, M ; Sharif University of Technology
2010
Abstract
Probabilistic analyses of a wide-area measurement system (WAMS) would require equivalent reliability models for its components which include phasor measurement units (PMUs). In this paper, the reliability modeling of PMU is proposed and the proposed model is extended to consider options for the PMU hardware. The Markov process is employed to analyze the proposed model and to present an equivalent two-state model of PMUs. Reliability parameters of PMU are estimated with major difficulties associated with limited and uncertain data. In this paper, uncertainties are taken into account to achieve more realistic estimates of PMU characteristics. Fuzzy sets along with reliability analyses and...
Security-constrained unit commitment with integration of battery storage in wind power plant
, Article 2017 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2017, 23 April 2017 through 26 April 2017 ; 2017 ; 9781538628904 (ISBN) ; Hajibandeh, N ; Ehsan, M ; Soleymani, S ; Sharif University of Technology
Abstract
There is a global tendency towards using Distributed Generation (DG) and renewable energy resources. Considering low utilization cost and low undesirable environmental effects, wind farms have become a considerable resource for producing electrical energy in many countries. Since Wind farms are not programmable and their power output which depends on weather and wind speed is uncertain, they create problems for utilizing electricity system. There are different methods for preserving system stability against the uncertainty of wind power plants. Optimal utilization of pumped storage and gas resources is one of the approaches for reducing production risk of wind farms. In this paper, it is...
Predictive utilization of energy storage for wind power fluctuation mitigation
, Article 26th Iranian Conference on Electrical Engineering, ICEE 2018, 8 May 2018 through 10 May 2018 ; 2018 , Pages 1332-1336 ; 9781538649169 (ISBN) ; Oraee, H ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2018
Abstract
Deployment of battery energy storage system (BESS) is a viable option to alleviate the inherent power fluctuation of wind farms. In this paper, a novel model predictive control (MPC) scheme is presented in order to control the BESS dispatch in an integrated wind farm. The constraints of BESS are formulated and are taken into account in optimization problem. The predictive control is based on receding horizon which shows robustness and improved performance compared to the conventional BESS control strategies. The objective function is defined in order to minimize the deviation of wind power production relative to the scheduled production. The results showed the effectiveness of the proposed...
Assessing the effect of wind farm layout on energy storage requirement for power fluctuation mitigation
, Article IEEE Transactions on Sustainable Energy ; 15 May , 2018 ; 19493029 (ISSN) ; Oraee, H ; Pal, B. C ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2018
Abstract
Optimization of wind farm (WF) layout has been studied in the literature with the objective of maximizing the wind energy capture. Based on the power spectrum density (PSD) theorem, this paper shows that the WF layout affects not only the total harvested energy but also the level of power fluctuation, which in turn influences required capacity of battery energy storage system (BESS) needed to mitigate the inherent power fluctuation of the wind farms. Since both harvested energy level and BESS capacity directly influence the profit of WF owner, the effect of WF layout on these quantities are taken into account simultaneously and WF layout optimization problem is redefined. Genetic algorithm...
Optimal placement of phasor measurement units using immunity genetic algorithm
, Article IEEE Transactions on Power Delivery ; Volume 24, Issue 3 , 2009 , Pages 1014-1020 ; 08858977 (ISSN) ; Lucas, C ; Khodaei, A ; Fotuhi Firuzabad, M ; Sharif University of Technology
2009
Abstract
This paper investigates the application of immunity genetic algorithm (IGA) for the problem of optimal placement of phasor measurement units (PMUs) in an electric power network. The problem is to determine the placement sites of the minimal set of PMUs which makes the system observable. Incorporating immune operator in the canonical genetic algorithm (GA), on the condition of preserving GA's advantages, utilizes some characteristics and knowledge of the problems for restraining the degenerative phenomena during evolution, so as to improve the algorithm efficiency. This type of prior knowledge about some parts of optimal solution exists in the PMU placement problem. So, the IGA is adopted in...
Investigating the impacts of microgrids and gas grid interconnection on power grid flexibility
, Article 2019 Smart Gird Conference, SGC 2019, 18 December 2019 through 19 December 2019 ; 2019 ; 9781728158945 (ISBN) ; Fattaheian Dehkordi, S ; Abbaspour, A ; Fotuhi Firuzabad, M ; Lehtonen, M ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2019
Abstract
The introduction of microgrids (MGs) and renewable energy sources (RESs) has caused significant shifts in the operation of power systems. Despite many benefits, integration of RESs has emerged new issues in the power systems operation. One of the issues recently raised by some utilities, is the severe ramps which are seen in systems with high penetration of RES. On the other hand, the traditional flexible power plants could not provide the ramp required in these systems. As a result, flexible local resources in independent entities like MGs should be employed to tackle this issue in these systems. In this paper, a novel model is developed to investigate the effects of MGs and gas grid...
Failure mode, effects and criticality analysis (FMECA) in power electronic based power systems
, Article 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe, 3 September 2019 through 5 September 2019 ; 2019 ; 9789075815313 (ISBN) ; Davari, P ; F. Firuzabad, M ; Blaabjerg, F ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2019
Abstract
Power electronics is becoming an underpinning technology for modern power systems. Power converters are increasingly used in various applications implying different levels of importance in power systems. Hence, optimal decision-making for manufacturing, control, operation and maintenance of them requires understanding of their importance in the power systems. Furthermore, identifying the converters importance may be beneficial for simplifying the system-level reliability modeling in a large Power Electronic based Power Systems (PEPSs). Thereby, a Failure Mode, Effects and Criticality Analysis (FMECA) approach is proposed in this paper in order to figure out the importance of converters in...
Assessing the effect of wind farm layout on energy storage requirement for power fluctuation mitigation
, Article IEEE Transactions on Sustainable Energy ; Volume 10, Issue 2 , 2019 , Pages 558-568 ; 19493029 (ISSN) ; Oraee, H ; Pal, B. C ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2019
Abstract
Optimization of wind farm (WF) layout has been studied in the literature with the objective of maximizing the wind energy capture. Based on the power spectrum density theorem, this paper shows that the WF layout affects not only the total harvested energy but also the level of power fluctuation, which, in turn, influences required capacity of battery energy storage system (BESS) needed to mitigate the inherent power fluctuation of the WFs. Since, both harvested energy level and BESS capacity directly influence the profit of WF owner, the effect of WF layout on these quantities is taken into account simultaneously, and WF layout optimization problem is redefined. Genetic algorithm is then...
Wind farm power output optimization using cooperative control methods
, Article Wind Energy ; 2020 ; Nobakhti, A ; Abdolahi, A ; Sharif University of Technology
John Wiley and Sons Ltd
2020
Abstract
We study the application of cooperative control and game theoretic approaches to wind farm optimization. The conventional (greedy) wind farm control strategy seeks to individually maximize each turbine power. However, this strategy does not maximize the overall power production of wind farms due to the aerodynamic interactions (wake effect) between the turbines. We formulate the wind farm power optimization problem as an identical interest game which can also be used to solve other cooperative control problems. Two model-free learning algorithms are developed to obtain the optimal axial induction factors of the turbines and maximize power production. The algorithms are simulated for a...
Effect of interline power flow controller (IPFC) on interconnected power systems adequacy
, Article 2008 IEEE 2nd International Power and Energy Conference, PECon 2008, Johor Baharu, 1 December 2008 through 3 December 2008 ; 2008 , Pages 1358-1363 ; 9781424424054 (ISBN) ; Fotuhi Firuzabad, M ; Nasiri, R ; Khodaei, A ; Sharif University of Technology
2008
Abstract
This paper probes the impact of utilizing an IPFC on the reliability indices of interconnected power systems. First, a concise presentation of IPFC and its structure are provided and the reliability model of two unequally-rated parallel transmission lines equipped with IPFC is then extracted. The assumed IPFC is composed from two parallel converting bridges associated with each line. Afterwards, based-on equivalent assisting unit approach, different commonly-used adequacy indices including the loss of load expectation (LOLE), loss of energy expectation (LOEE) and system minutes (SM) are calculated. A set of numerical analyses are conducted to illustrate the sensitivity of these indices with...
Optimal placement of phasor measurement units: Particle swarm optimization approach
, Article 2007 International Conference on Intelligent Systems Applications to Power Systems, ISAP ; 2007 ; 9860130868 (ISBN); 9789860130867 (ISBN) ; Ranjbar, A. M ; Amraee, T ; Shirani, A. R ; Sharif University of Technology
2007
Abstract
This paper is concerned about the optimal placement of phasor measurement units (PMUs) so as to make a system completely observable. Observability assessment is done by the aid of the topological observability rules. Moreover a new rule is added which can decrease the number of required PMUs for complete system observability. A modified binary particle swarm is used as an optimization tool for obtaining the minimal number of PMUs and corresponding configuration. In order to improve the speed of convergence, an initial PMU placement is provided by graph-theoretic procedure. The simulation results of proposed approach are presented for several IEEE test systems
Wind farm power output optimization using cooperative control methods
, Article Wind Energy ; Volume 24, Issue 5 , 2021 , Pages 502-514 ; 10954244 (ISSN) ; Nobakhti, A ; Abdolahi, A ; Sharif University of Technology
John Wiley and Sons Ltd
2021
Abstract
We study the application of cooperative control and game theoretic approaches to wind farm optimization. The conventional (greedy) wind farm control strategy seeks to individually maximize each turbine power. However, this strategy does not maximize the overall power production of wind farms due to the aerodynamic interactions (wake effect) between the turbines. We formulate the wind farm power optimization problem as an identical interest game which can also be used to solve other cooperative control problems. Two model-free learning algorithms are developed to obtain the optimal axial induction factors of the turbines and maximize power production. The algorithms are simulated for a...
Harnessing power system flexibility under multiple uncertainties
, Article IET Generation, Transmission and Distribution ; Volume 16, Issue 14 , 2022 , Pages 2878-2890 ; 17518687 (ISSN) ; Saber, H ; Fattaheian Dehkordi, S ; Moeini Aghtaie, M ; Fotuhi Firuzabad, M ; Lehtonen, M ; Sharif University of Technology
John Wiley and Sons Inc
2022
Abstract
Increasing the intermittent outputs of renewable energy sources (RESs) has forced planners to define a new concept named flexibility. In this regard, some short- and long-term solutions, such as transmission expansion planning (TEP) and energy storage systems (ESSs) have been suggested to improve the flexibility amount. A proper optimization procedure is required to choose an optimal solution to improve flexibility. Therefore, a mixed-integer linear programming (MILP) direct-optimization TEP versus ESSs co-planning model is presented in this paper to enhance power system flexibility. In doing so, a novel RES-BESS-based grid-scale system flexibility metric is proposed to investigate the...
Plug-in hybrid electric vehicle battery charger with soft-switched dual-bridge resonant converter for smart grid applications
, Article 7th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2016, 27 June 2016 through 30 June 2016 ; 2016 ; 9781467386166 (ISBN) ; Ebrahimi, S ; Tahami, F ; Oraee, H ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2016
Abstract
Battery chargers are fundamental components for successful deployment of plug-in hybrid electric vehicles (PHEVs) into future smart grid. Recently, an integrated isolated bidirectional battery charger has been proposed for PHEV applications. The proposed charger eliminates the conventional bulky dc-link capacitor by feeding a dual-bridge resonant tank directly from the three-phase grid. The disadvantages associated with the presented charger are the high number of semiconductor switches which contribute to high cost and switching losses of converter as well as complicated control circuitry. In this paper, the previous structure is modified to address the aforementioned drawbacks and is...