Testing advanced photovoltaic inverters conforming to IEEE standard 1547 - Amendment 1

This paper introduces a new test plan and provides results for testing photovoltaic inverters with advanced grid support features including voltage regulation, wider voltage and frequency operating ranges, and voltage and frequency ride-through, as allowed by IEEE Standard 1547-Amendment 1. The test plan emphasizes testing for interactions between and among advanced inverter features and conventional features (e.g., unintentional islanding), and it includes testing of inverter dynamic response when regulating voltage. Results are included from testing of a single-phase inverter and a three-phase inverter.