Tối ưu vị trí d-statcom để cải thiện hiện tượng sụt áp ngắn hạn trong lưới phân phối

Abstract

This paper studies and proposes a selection method to optimize the position and capacity of D-Statcom equipment in the power distribution network to overcome short-term voltage drops (SANH) caused by short circuits. The installation of D-Statcom equipment is aimed at ensuring power quality for the grid. In addition, the optimal location and capacity of D-Statcom is selected based on the minimization of the D-Statcom investment cost function and the SANH penalty cost through the total grid voltage deviation. The node impedance matrix method is applied to simulate the SANH improvement effect of D-Statcom. This study applies the genetic algorithm to solve the optimization problem and uses it to a 16-node sample distribution grid. The problem also considers the cases of short-circuit impedance and short-circuit position to assess the effects of these factors on the optimal position results of D-Statcom.