The Effect of Control Area Method on Micro-Grid Concept Implementation in Bali Grid

摘要

This paper studies impact of implementing micro-grids in the electric power system of Bali using multiple control area approach. The main issue with having grid-connected micro-grids in the electric power system is how to quantify the effects of the micro-grids on the overall grid operation. Since micro-grids are connected at the distribution system level, performing power flow analysis from the grid perspective (transmission system level perspective) would be difficult and exhaustive. This work performs an analysis of the effect of Micro-grid implementation on the electric power system of Bali by modeling the micro-grids as the load reduction on a particular bus. For that purpose, two models of the control area, single control area and multiple control area, were investigated. The objective of this study was to evaluate advantages and disadvantages of this approach when used to implement the micro-grid and to perform optimal power flow analysis. It was found that introduction of micro-grids into the electric power system of Bali and its analysis using multiple control area model (ten control areas) has potential; and is able to solve the optimal power flow problem with the best dispatch strategy.