Control model of intelligent soft switch with energy storage for flexible load

With the large - scale integration of distributed energy into the distribution network, its inherent volatility and uncertainty have brought many challenges to the stable operation of the distribution network, such as voltage violations, increased network losses and other issues [1] [5]. Against this background, this paper aims to explore the control model of energy - storage - type intelligent soft - open - point (E - SOP) for flexible load regulation to enhance the economy and stable operation capabilities of the distribution network, by establishing a mathematical control model of the multi - port E - SOP and aiming at minimizing the annual comprehensive cost and the comprehensive operation cost of the distribution network on both non-fault and fault days. This model realizes the optimal configuration of the E - SOP port connection position, the internal energy - storage capacity, and the transmission capacity of the intelligent soft - open - point, as well as the rational optimization of active and reactive power in the distribution network. The case analysis of the improved IEEE33 distribution system, the effectiveness of the proposed method is verified.