Artificial Neural Network Based Identification of Multi-Operating-Point Impedance Model

The black-box impedance model of voltage source inverters (VSIs) can be measured at their terminals without access to internal control details, which greatly facilitate the analysis inverter-grid interactions. However, VSI is dependent on its operating point and have different profiles when changed. This letter proposes a method for identifying under wide range points. approach based artificial neural network (ANN), where general framework applying ANN identify established. effectiveness ANN-based validated with analytical models.