A reliable complex power flow calculation based on bus current equations

It is important to know the power system condition by calculating power flows. As an alternative to the Newton-Raphson method which requires much calculation and complex program, this paper proposes a highly reliable complex power flow calculation method that requires not Jacobian matrix but the I=YE equation. To consider the proposed method, two approaches were tested. Simulations are carried out to determine which approach is suitable for the proposed method and a reliable and fast power flow calculation technique was developed. In addition, the proposed method is applied to circuit calculations for transient stability calculations, which use the I=YE equation. Simulations were run to verify the validity of the proposed method.