METHOD AND DEVICE FOR OBTAINING THREE-PHASE POWER FLOW OF POWER DISTRIBUTION NETWORK WITH UNGROUNDED TRANSFORMERS

摘要

A method for obtaining a three-phase power flow of a power distribution network and a device for obtaining a three-phase power flow of a power distribution network are provided. The method comprises steps of: selecting a three-phase power transformer with an ungrounded neutral connection in the power distribution network; correcting a three-phase admittance matrix of the three-phase power transformer; and applying the three-phase admittance matrix to a preset algorithm to obtain a three-phase power flow of the power distribution network.