Generic Three-Phase Power Flow methods using symmetrical components for symmetrical and unsymmetrical power system networks

Three phase power flow calculation is required for Transmission Network Analysis (TNA) and Distribution Network Analysis (DNA). In TNA it is needed to calculate voltage and current unbalance factors, required by Power Quality Analysis. In DNA Three Phase Power Flow is a must to have tool, since power flow is used as a basis tool for other DNA methods. This paper presents modeling proposal for using symmetrical components for TNA and DNA. It is applied to Newton-Raphson, Current Injection, and ladder iterative methods. Single phase switching as an operational mode in unsymmetrical power system networks is analyzed efficiently solved using this method.