Dynamic performance response evaluation of solar gate: Zero export injection equipment for photovoltaic power generation systems

Recently, photovoltaic (PV) panels as a part of renewable energy sources are used in numerous applications. With the prompt growth of photovoltaic system connections to power networks, development of efficient grid interfacing instrumentation has become imperative for photovoltaic systems to ensure utility-compliant zero export. This paper presents the operation principle, controlling method and dynamic response of the Solar Gate designed by Magellan Power, to illustrate the accuracy and capabilities of the presented device with a commercial grid-tie inverter. In addition, the importance of fast response to load´s dynamics is discussed. Furthermore, test results are presented for a typical load using the Power-One Aurora Trio inverter to demonstrate the actual performance.