Contribution of Distribution Network Control to Voltage Stability: A Case Study

Petros Aristidou, Gustavo Valverde, Thierry Van Cutsem
2017 IEEE Transactions on Smart Grid  
A case study dealing with long-term voltage instability in systems hosting active distribution networks is reported in this paper. It anticipates future situations with high penetration of dispersed generation, where the latter are used to keep distribution voltages within desired limits, in complement to load tap changers. The interactions between transmission and active distribution networks are investigated on a 3108-bus test system. It involves transmission grid, large generators, and forty
more » ... nerators, and forty distribution networks, each with dispersed generation steered by a controller inspired of model predictive control. The reported simulations show the impact of distribution network voltage restoration as well as the benefit of load voltage reduction actuated by the dispersed generators. Index Terms-Active distribution networks, voltage control, voltage stability, emergency control, load voltage reduction. P. Aristidou is with the
doi:10.1109/tsg.2015.2474815 fatcat:yqhkckj52bhznd64uhb5ufqjfi