Decoupled asymmetrical three-phase load flow study by parallel processing

A decoupling-compensation technique used to break the three-phase coupled power system model into three sequence-decoupled models is proposed, With such a decoupling, positive-, negative- and zero-sequence system models can be solved simultaneously. By combining these models with the well-known Newton-Raphson or fast-decoupled algorithms, two novel methods used for asymmetrical three phase load flow study are established. Based on these the synchronous parallel algorithm can then be employed and the corresponding software used for this purpose can be implemented onto a multiprocessor system. The validity of the proposed methods is verified and the computation results are analysed herein.