Techno-Economic and Power System Optimization of a Renewable Rich Islanded Microgrid Considering Different Dispatch Strategies

IEEE Access

Ananta Bijoy Bhadra¹  Ripon K. Chakrabortty¹  Shahriar Rahman Fahim²  Subrata K. Sarker²  Michael J. Ryan²  Sajal K. Das³  Md. Alamgir Hossain⁴  M. M. Rashid⁴  Md. Fatin Ishraque⁵  Sk. A. Shezan⁶ 

[1] Technology, Rajshahi, Bangladesh;Capability Systems Centre, School of Engineering and Information Technology, UNSW Canberra at ADFA, Campbell, ACT, Australia;Department of Electrical and Electronic Engineering, American International University-Bangladesh, Dhaka, Bangladesh;Department of Electrical and Electronic Engineering, Rajshahi University of Engineering &x0026;Department of Electrical, Electronic and Communication Engineering, Pabna University of Science and Technology, Pabna, Bangladesh;School of Engineering, RMIT University, Melbourne, VIC, Australia;

关键词: Microgrid;    dispatch strategies;    optimization;    techno-economic analysis;    power system performance;   

DOI  :  10.1109/ACCESS.2021.3082538

来源: DOAJ

【 摘 要 】

In this work, the evaluation of the design and optimization of proposed offgrid hybrid microgrid systems for different load dispatch strategies is presented by assessing the component sizes, system responses and different cost analyses of the proposed system. This study optimizes the sizing of the Barishal and Chattogram (two popular divisions in Bangladesh) hybrid microgrid systems consisting of wind turbine, storage unit, solar PV, diesel generator and a load profile of 27.31 kW for five dispatch techniques: (i) generator order, (ii) cycle charging, (iii) load following, (iv) HOMER predictive dispatch and (v) combined dispatch strategy. The considered microgrids are optimized for the least CO₂ gas emission, Net Present Cost, and Levelized Cost of Energy. The two microgrids are analyzed for the five dispatch techniques using HOMER software, and subsequently, the power system performance and feasibility study of the microgrids are performed in MATLAB Simulink. The results in this research provide a guideline to estimate different component sizes and probable costing for the optimal operation of the proposed microgrids under various load dispatch conditions. The simulation results suggest that ‘Load Following’ is the best dispatch strategy for the proposed microgrids having a stable power system response with the lowest net present cost, levelized cost of energy, operating cost, and CO₂ emission rate. Additionally, the combined dispatch strategy is determined to be the worst dispatch technique for the proposed off-grid hybrid microgrid design having the maximum levelized cost of energy, net present cost, operating cost and CO₂ emission.

【 授权许可】

Unknown