Dynamic Model of Commercially Available Inverters With Validation Against Hardware Testing

The increasing penetration of photovoltaics (PV) in the bulk power system has led to growing need for better understanding behavior PV inverters during grid disturbances. A configurable dynamic model is presented this paper emulating a Low Voltage (LV) connected off-the-shelf inverter faults and voltage dips. been developed validated against results acquired throughout empirical characterization real inverter. physical testing Device Under Test (DUT) was performed at Power Networks Demonstration Centre (PNDC), where required network conditions were applied output using Real Time Digital Simulator (RTDS). Further simulations, conducted with aid model, aim reflect distribution dominated by generation under number imposed fault scenarios.