Application of a Fuzzy Logic Controller in a D-STATCOM in an Electrical Network with Distributed Generation

The article is devoted to the problem of increasing the response speed of the D-STATCOM connected to an electrical network with distributed generation (DG). Distributed generation based on renewable energy sources (RES) has a negative impact on the quality of electricity in distribution networks. The use of the D-STATCOM allows to reduce non-sinusoidal voltage and it fluctuations in the network. The traditional control methods based on the PI controller cause a slow response of the D-STATCOM, which is unacceptable, especially in transient conditions with rapid changes in RES generation. It is proposed to use a fuzzy logic controller to increase the response speed and efficiency of the D-STATCOM and to ensure the better power quality of the DG system.