Design Framework of a Stand-Alone Microgrid Considering Power System Performance and Economic Efficiency

Abstract

Stand-alone microgrids integrating renewable energy sources have emerged as an efficient energy solution for electrifying isolated sites, such as islands and remote areas. The design of a microgrid involves various influential factors, including technological development, economic feasibility, and environmental impacts, based on the conditions and regulations of a particular site. This paper proposes a comprehensive microgrid design framework based on power system analysis and techno-economic analysis. The obtained optimal microgrid configuration satisfies both the design objective and power system performance regulations. The proposed design approach focuses on using practical data and can adapt to any microgrid design problems based on the local characteristics of a specific site. The practicality and effectiveness of the design framework are validated by applying it to the design of a stand-alone microgrid for Deokjeok Island in South Korea. The case study results justify the importance of considering site-specific characteristics and the impacts of power system conditions on the optimal microgrid design.

Design and implementation of Hybrid Renewable energy (PV/Wind/Diesel/Battery) Microgrids for rural areas.

“…The construction of a microgrid necessitates considering various elements, encompassing technology advancements, economic feasibility, and environmental impacts, per pertinent local regulations and legislation. A recent case study supports considering site-specific characteristics and power system conditions when constructing effective microgrids [24], [47]. To optimize the microgrid's performance, it is vital to have the necessary electrical and control infrastructure and devices in place.…”

“…The distribution and administration of electricity within the microgrid is facilitated by an advanced energy management system (AEMS). Various optimization procedures have been employed in recent academic studies to enhance the efficiency of microgrids [24]. These studies have investigated energy sustainability, demand response techniques, control systems, and energy management systems [25].…”

Robust Hierarchical Control Design for the Power Sharing in Hybrid Shipboard Microgrids

“…In the case of a DC source that is linked to a battery that provides constant voltage, a DC source would be connected to such a battery. Moreover, DC load is a constant power load [25]. According to KVL at the DC MG, DC source voltage is the summation of load voltage and potential difference across the line loss.…”

A Review on Peak Load Shaving in Microgrid—Potential Benefits, Challenges, and Future Trend

“…In recent years, the advancements in grid technologies have allowed microgrid technologies to reach a more mature state where wind and solar renewable energies are the commonly integrated sources in a microgrid [8][9][10]. Despite the advantage of renewable sources, these microgrids, if isolated from the main grid, can be easily affected by power fluctuations, which will subsequently lead to unbalances in the power demand and supply system [11][12][13]. This undesirable event is mainly caused by the intermittent nature of the sources of renewable energy as well as the dynamic load profile, particularly during peak load [14,15].…”