Investigation of micro-grid behavior while operating under various network conditions

The proposed solution to handle the impact of Distributed Generators is the micro-grid concept. This concept allows conventional grids to be made suitable for large scale deployments of distributed generation. The dynamic structures of micro-grids change very often depending on various network factors. This dynamic behavior of micro-grids to alter operation under various network conditions is an area that needs to be more thoroughly investigated and understood in moving forward with the integration of the micro-grid concept to existing power supply grids. This paper presents the detailed modeling of a typical micro-grid when operated in islanded mode or when connected to a Standard IEEE T14 Bus system or when connected to an IEEE Standard 34 Bus system. Various power/load flow studies conducted give a detailed outline of the operation of the micro-grid under various conditions such as: islanded operation, operation when connected to transmission and distribution networks.