SunSine300, utility interactive AC module anti-islanding test results

Test results are presented for the SunSine300 AC photovoltaic module's anti-islanding protection. These tests were conducted on a single SunSine300 AC module inverter under controlled laboratory conditions. The various passive and active anti-islanding methods used in the SunSine300 are discussed. Other forms of anti-islanding protection are also discussed. Data is presented to show how tightly matched the PV and load must be for special islanding detection methods to be needed. The data also shows how effectively our proprietary Zebra method of anti-islanding performs. In all of the trip tests conducted, the SunSine300 never exhibited run-on. In this paper, run-on is defined as operation into an islanded load longer than 2 seconds.