Abstract
Conference Title: 2015 North American Power Symposium (NAPS) Conference Start Date: 2015, Oct. 4 Conference End Date: 2015, Oct. 6 Conference Location: Charlotte, NC, USA This paper investigates the large signal stability of a DC to AC inverter using a Lure-type Lyapunov function. The Lyapunov function is systematically calculated for an inverter modeled as an electrostatic machine. The calculated Lyapunov function takes into account the impedance between the inverter and the grid. The stability of the inverter was studied under three scenarios: purely inductive, slightly resistive and purely resistive grid impedance. Simulation results show that the grid impedance has a pronounced effect on the large signal stability of inverters.