Reliability Assessment Method of a Nanogrid Connected to Main Grid

Abstract

Microgrids are autonomous electric power distribution systems for small communities that utilize distributed generation to improve performance. Various microgrid advantages, such as increased reliability, efficiency, etc. are causing the penetration of the electric power system to be increased every day. Currently, microgrid applications have evolved to a smaller scale called nanogrids. The increasing number of microgrids and nanogrids raises the need for a tool that can be used to assess their performance. The tool would be used to compare one nanogrid system to another and to measure the ups and downs of a system's performance over time or after an improvement has been made. To realize this tool, a quantitative reliability indicator is needed. The Loss of Load Expectation (LOLE) was chosen in this study because this indicator is well established and has been used to assess the reliability of power systems throughout the world. As a validation, this model will be used to evaluate the reliability of nanogrids in the energy management laboratories, physics engineering study programs, the Institut  Teknologi Bandung