Determination of DG allocation with modal participation factor to enhance voltage stability

Distributed generation (DG) has become increasingly popular in many power systems across the world. It is an effective approach to facilitate the usage of renewable resources for power generation purpose. However, the installation of DGs in a power system may change the pattern of the power flow and cause various complexities in the system. How to plan DGs to best utilize renewable energy source while maintaining system security is an important problem. In this paper, an eigenvalue based analysis method is proposed for DG location planning with detailed case studies.