Design and analysis of a photovoltaic‐battery ‐ methanol‐diesel power system

Abstract

Summary The utilization of renewable energy resources (RERs) in the traditional power system has gained a global recognition owing to their technical, economic and environmental benefits. The techno‐economic analysis of a microgrid system that consists of diesel generator (DG), methanol generator (MG), photovoltaic (PV) and battery system (BS) is implemented in this study to evaluate the performance of the power system. The feasibility study of the power system is implemented by using HOMER application tool and meteorological data provided by the National Aeronautics and Space Administration. The analysis indicates that PV‐DG‐MG‐BS microgrid system is the most optimized configuration based on the net present cost (NPC) of $213 405.4, cost of energy (COE) of $0.256/kWh, renewable fraction of 88.6%, diesel fuel of 3055 L/y and DG operating hours of 1037 h/y. The results obtained from the optimized configuration translate to a substantial reduction in NPC, COE, diesel fuel and operating hours of DG when compared to the base case study. This indicates that the combination of DG, PV, MG and BS in a microgrid system is the most economical configuration to achieve a feasible result. Moreover, sensitivity analysis is carried out to investigate the impacts of solar radiation, load demand, fuel cost and inflation rate on the performance of the power system. The results obtained from the study clearly prove the effectiveness of using RERs to increase the sustainability and performance of the power system. This improves the standard of living and economic activities in areas where the microgrid systems are sited.

Optimal siting and sizing of custom power system and smart parking lot in the active distribution network

“…In this study, backward/forward sweep power flow is used to obtain the mentioned constraints. Branch-current to bus voltage matrix and bus-injection to branch-current matrix are defined as (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24) to buses voltage deviation in this section. All of the equations are written on radial distribution system, which is studied in [32]: Acquire the initial optimal plans for each objective Perform TOPSIS approach for all plans through (29)(30)(31)(32)(33)(34)(35) Sort all plans based on mean distance from anti-ideal solution Final ranking of the plans End FIGURE 3 Flowchart of the proposed method.…”

Optimal interaction of photovoltaic investor (PVI) in maximizing total benefits of distribution network operator (DNO)

“…Output power of PVs is a function of absorbed sun irradiation. Due to fluctuated behavior of sun irradiation, its PDF is formulated as follows [20]: $$$$\begin{equation} S_h = \mu _h + \lambda _h \times \sigma _h. \end{equation}$$$$…”

“…Output power of PV Output power of PVs is a function of absorbed sun irradiation. Due to fluctuated behavior of sun irradiation, its PDF is formulated as follows [20]:…”

Reliability Evaluation and Financial Viability of an Electricity Power Micro-Grid System With the Incorporation of Renewable Energy Sources and Energy Storage: Case Study of KwaZulu-Natal, South Africa

“…A reliable electricity supply is a booster to the social devel-opment, economic growth, health, and physical well-being of a nation. Reliability plays a crucial role in the design, implementation, and operation of an electrical system [4]. The performance of the electrical system can be measured by utilities using reliability indices.…”

“…They investigated different control methods in different scenarios. Adefarati et al proposed a cost-effective, optimized micro-grid system using solar PV, diesel generator, methanol generator and BESS; implemented by the HOMER application tool [4]. The performance of the system was investigated using fuel cost, inflation rate, load demand and solar radiation.…”