Total Quadrant Security Region for Active Distribution Network with High Penetration of Distributed Generation

The region-based method has been applied in transmission systems and traditional passive distribution without power sources. This paper proposes the model of total quadrant security region (TQSR) for active networks (ADN) with high penetration distributed generation (DG). Firstly, TQSR is defined as a closed set all N-1 secure operation points state space ADN. Then, modeled considering constraints space, normal criterion. characteristics are observed analyzed on test different DG penetrations. can be located any space. For penetrations, shape features also different. Finally, map discovered, which summarizes types networks.