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Details

  • Name

    Mohammad Javadi
  • Cluster

    Power and Energy
  • Role

    Assistant Researcher
  • Since

    01st June 2019
001
Publications

2021

Optimal placement of battery swap stations in microgrids with micro pumped hydro storage systems, photovoltaic, wind and geothermal distributed generators

Authors
Rezaee Jordehi, A; Javadi, MS; P. S. Catalão, J;

Publication
International Journal of Electrical Power and Energy Systems

Abstract
The penetration of electric vehicles (EVs) in vehicle markets is increasing; however long charging time in battery charging stations is an obstacle for larger adoption of EVs. In order to address this problem, battery swap stations (BSSs) have been introduced to exchange near-empty EV batteries with fully charged batteries. Refilling an EV in BSS takes only a few minutes. With decentralization of power systems, BSSs are typically connected to the microgrid (MG) in their neighborhood. Although the location of BSS in MG affects MG operation cost, to the best knowledge of the author, optimal placement of BSS has not been done from the perspective of MG. Therefore, in this paper, the objective is to find optimal location of BSSs in a MG with micro pumped hydro storage (PHS), photovoltaic, wind and geothermal units, while reactive power dispatch and all network constraints are considered by AC optimal power flow. The effect of BSS capacity and maximum charging/discharging power, BSS to MG link capacity, PHS capacity and maximum power of PHS unit on MG operation and optimal BSS location are investigated. DICOPT solver in general algebraic mathematical system (GAMS) is used to solve the formulated mixed-integer nonlinear optimisation problem. © 2020 Elsevier Ltd

2021

Self-scheduling model for home energy management systems considering the end-users discomfort index within price-based demand response programs

Authors
Javadi, MS; Nezhad, AE; Nardelli, PHJ; Gough, M; Lotfi, M; Santos, S; Catalao, JPS;

Publication
Sustainable Cities and Society

Abstract
This paper presents a self-scheduling model for home energy management systems (HEMS) in which a novel formulation of a linear discomfort index (DI) is proposed, incorporating the preferences of end-users in the daily operation of home appliances. The HEMS self-scheduling problem is modelled as a mixed-integer linear programming (MILP) multi-objective problem, aimed at minimizing the energy bill and DI. In this framework, the proposed DI determines the optimal time slots for the operation of home appliances while minimizing end-users’ bills. The resulting multi-objective optimization problem has then been solved by using the epsilon-constraint technique and the VIKOR decision maker has been employed to select the most desired Pareto solution. The proposed model is tested considering tariffs in the presence of various price-based demand response programs (DRP), namely time-of-use (TOU) and real-time pricing (RTP). In addition, different scenarios considering the presence of electrical energy storage (EES) are investigated to study their impact on the optimal operation of HEMS. The simulation results show that the self-scheduling approach proposed in this paper yields significant reductions in the electricity bills for different electricity tariffs. © 2021 Elsevier Ltd

2021

Energy management in microgrids including smart homes: A multi-objective approach

Authors
Mansouri, SA; Ahmarinejad, A; Nematbakhsh, E; Javadi, MS; Jordehi, AR; Catalao, JPS;

Publication
Sustainable Cities and Society

Abstract
With the penetration of smart homes in distribution systems, and due to the effect of their schedulable load on reducing the peak load of the network as well as their comfort index, microgrid's scheduling in the presence of smart homes has become an important issue. In this regard, this paper presents a tri-objective optimization framework for energy management of microgrids in the presence of smart homes and demand response (DR) program. The model is implemented on an 83-bus distribution system with 11 microgrids. The uncertainties of renewable energy resources (RESs) output power and load demand have been taken into account and the objective function is modeled in the form of bi-objective and tri-objective models using the max-min fuzzy method. The objectives include the operating cost, emissions, and peak-to-average ratio (PAR). The results indicate that an increase in DR penetration reduces the PAR and operating costs and leads to a decrease in the customers’ comfort. Besides, the simulation results show that the best results are obtained from the tri-objective model, and in this model, three goals, including the operating costs, emissions, and PAR index are close to their optimal values, while the customers’ comfort index is also satisfactory. Finally, the results show that considering smart homes in the network reduces the operation cost and emission by about 16 % and 17 %, respectively. © 2021 Elsevier Ltd

2021

Preserving Privacy of Smart Meter Data in a Smart Grid Environment

Authors
Gough, M; Santos, S; Alskaif, T; Javadi, M; Castro, R; Catalao, JPS;

Publication
IEEE Transactions on Industrial Informatics

Abstract
The use of data from residential smart maters can help in the management and control of distribution grids. This provides significant benefits to electricity retailers as well as distribution system operators, but raises important questions related to the privacy of consumers information. In this study, an innovative Differential Privacy (DP) compliant algorithm is developed to ensure that the data from consumers smart meters is protected. In addition, several cost allocation mechanisms based on cooperative game theory are used to ensure that the extra costs are divided among the participants in a fair, efficient and equitable manner. Comprehensive results show that the approach provides privacy preservation in line with the consumers preferences and does not lead to significant cost or loss increases for the energy retailer. In addition, the novel algorithm is computationally efficient and performs very well with a large number of consumers, thus demonstrating its scalability. IEEE

2021

A Dijkstra-Inspired Graph Algorithm for Fully Autonomous Tasking in Industrial Applications

Authors
Lotfi, M; Osorio, GJ; Javadi, MS; Ashraf, A; Mahmoud, M; Samih, G; Catalao, JPSPS;

Publication
IEEE Transactions on Industry Applications

Abstract