An approach for modeling self-commutated static power converters for photovoltaic islanding studies

The development of a model for a commercially available self-commutated static power converter (SPC) to investigate the conditions under which isolated operation (islanding) occurs is described. The approach used in modeling the SPC is unique in islanding studies. It is based on solving complex-AC system equations and phase-locked loop differential equations simultaneously to determine the SPC response. The model accurately and optimistically predicts the islanding performance of the self-commutated SPC, as verified in laboratory experiments and detailed computer simulations.<
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