Abstract

In this paper, a simplified model of an isolated microgrid (IMG) with hybrid photovoltaic (PV)-battery energy storage system (BESS) is discussed. The concept of peak load shaving is also demonstrated. The developed model helps an isolated power system to minimize the demand and maximize the economic benefit. MATLAB/Simulink tool was used to simulate the electrical circuit of the IMG system. The IMG model contains four sub-systems, namely the PV model, time varying load profile model, BESS model and gas turbine generator (GTG) dispatch model. To evaluate the performance of the developed IMG, a simulation case study was conducted under realistic load conditions of Universiti Teknologi PETRONAS (UTP). Results indicated that simulation illustrates the precise situation of the real-time system, as found in the UTP microgrid. Results also revealed that the concept of peak load shaving broadly illustrated in this study. The implementation of the proposed IMG model may bring economic benefit by minimizing peak load demand.

Keyword

Isolated microgrid system, Photovoltaic, Battery energy storage system, Peak load shaving, Hybrid system modelling.

Cite this article

Rana MM, Romlie MF, Abdullah MF, Uddin M, Rahman MO

Refference

[1][1]Yu B, Guo J, Zhou C, Gan Z, Yu J, Lu F. A review on microgrid technology with distributed energy. In international conference on smart grid and electrical automation 2017 (pp. 143-6). IEEE.

[2][2]Mizani S, Yazdani A. Optimal design and operation of a grid-connected microgrid. In Electrical Power & Energy Conference 2009 (pp. 1-6). IEEE.

[3][3]Vijayan RJ, Ch S, Roy R. Dynamic modeling of micro grid for grid connected and intentional islanding operation. In international conference on advances in power conversion and energy technologies 2012 (pp. 1-6). IEEE.

[4][4]Uddin M, Romlie MF, Abdullah MF, Hassan KN, Tan CK, Bakar AH. Modeling of campus microgrid for off-grid application. 5th IET international conference on clean energy and technology 2018 (pp.1-5).

[5][5]Baimel D, Belikov J, Guerrero JM, Levron Y. Dynamic modeling of networks, microgrids, and renewable sources in the dq0 reference frame: a survey. IEEE Access. 2017; 5:21323-35.

[6][6]Nordin AH, Omar AM. Modeling and simulation of Photovoltaic (PV) array and maximum power point tracker (MPPT) for grid-connected PV system. In international symposium & exhibition in sustainable energy & environment 2011 (pp. 114-9). IEEE.

[7][7]Hernández JC, Sanchez-Sutil F, Muñoz-Rodríguez FJ. Design criteria for the optimal sizing of a hybrid energy storage system in PV household-prosumers to maximize self-consumption and self-sufficiency. Energy. 2019; 186:1-21.

[8][8]Zhang F, Fu A, Ding L, Wu Q. MPC based control strategy for battery energy storage station in a grid with high photovoltaic power penetration. International Journal of Electrical Power & Energy Systems. 2020; 115:1-9.

[9][9]Singh SN, ØSTERGAARD J, Jain N. Distributed generation in power systems: an overview and key issues. Fuel Cells. 2009; 9:1-9.

[10][10]Hemmes K. Towards multi-source multi-product and other integrated energy systems. International Journal of Integrated Energy Systems. 2009; 1(1):1-5.

[11][11]Tsai CT, Shen TW, Chen YP, Hsu PH. Control strategy of PV/diesel/battery hybrid system for island-based microgrid. In international symposium on computer, consumer and control (IS3C) 2018 (pp. 121-4). IEEE.

[12][12]Mahmud K, Hossain MJ, Ravishankar J. Peak-load management in commercial systems with electric vehicles. IEEE Systems Journal. 2018; 13(2):1872-82.

[13][13]Dagdougui H, Dessaint L, Gagnon G, Al-Haddad K. Modeling and optimal operation of a university campus microgrid. In power and energy society general meeting (PESGM) 2016 (pp. 1-5). IEEE

[14][14]Mahmud K, Hossain MJ, Town GE. Peak-load reduction by coordinated response of photovoltaics, battery storage, and electric vehicles. IEEE Access. 2018; 6:29353-65.

[15][15]Rana MM, Romlie MF, Abdullah MF. Peak load shaving in isolated microgrid by using hybrid PV-BESS system. International Journal. 2020; 8(1.1):7-14.

[16][16]Washom B, Dilliot J, Weil D, Kleissl J, Balac N, Torre W, Richter C. Ivory tower of power: microgrid implementation at the University of California, San Diego. IEEE Power and Energy Magazine. 2013; 11(4):28-32.

[17][17]AbdelHady R. Modeling and simulation of a micro grid-connected solar PV system. Water Science. 2017; 31(1):1-10.

[18][18]Khalil A, Ateea K. Modelling and control of photovoltaic-based microgrid. International Journal of Renewable Energy Research. 2015; 5(3):826-35.

[19][19]Uddin M, Romlie MF, Abdullah MF. Performance assessment and economic analysis of a gas-fueled islanded microgrid—a Malaysian case study. Infrastructures. 2019; 4(4):1-14.

[20][20]Atef M, Khatib T, Abdullah MF, Romlie MF. Optimization of a hybrid solar PV and gas turbine generator system using the loss of load probability index. Clean Technologies. 2020; 2(3):240-51