Power flow algorithm with induction motors

This paper proposes an extended method of Newton-Raphson power flow algorithm to incorporate nonlinear model of induction motor loads. The proposed method is used for finding correct power system operating conditions, which can be employed for solving the problem of initializing the dynamic models of induction motor in stability studies. The power flow solution with a group of induction motors is demonstrated. Moreover, the computational efficiency of the extended algorithm has been investigated using IEEE-30bus system. The results show that this algorithm gives exact active and reactive powers of induction motors that are related with their converged slips, terminal voltages, and mechanical torque profiles. Furthermore, the extended algorithm shows a good convergent characteristic in quadratic manner.