Steady State Primary Frequency Estimation for Microgrid Transferring Mode Using Distributed Slack Bus Load Flow Analysis

This paper proposes a calculation method to determine the frequency deviation of microgrid (MG) system in transferring mode, using the mathematical model of distribution slack bus load flow (DSLF). In the proposed method, the modified incorporating Newton-Raphson load flow incorporating generation control equations are used to find the primary frequency deviation. The IEEE radian distribution 33-bus was modified as an microgrid model and used to test the proposed method.