Abstract
This paper pushes forward frequency domain (FD) modeling of switched networks aimed at transient simulation, with particular interest in photovoltaic (PV) systems. The PV system simulation is performed via the numerical Laplace transform (NLT) in a sequential (partitioned-time) fashion by using a set of time-windows. The proposed technique enhances existing FD PV models by a) averaging switching functions and b) using sample overlapping to alleviate numerical oscillations due to rise-time phenomenon at time-window interfaces. The proposed enhancements provide a more efficient dynamic simulation compared to both classical single-window full-sample NLT implementation and non-averaged FD PV models. Verification is performed via prevalent electromagnetic transient (EMT) software tools.
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