What Is an AC-Coupled Inverter?
Before introducing AC Coupled Inverters, let's understand the difference between DC Coupled and AC Coupled systems. There are a wide variety of system solutions available for photovoltaics plus energy storage, often referred to as photovoltaic storage systems. These systems primarily consist of photovoltaic panels, inverters, energy storage batteries, and loads. While there are several ways to establish these systems, energy in all cases needs to converge at a certain point. There are two main types of systems: Direct Current (DC) Coupling and Alternating Current (AC) Coupling. What is an AC-coupled inverter? What is AC-coupling? In an AC-coupled system , a grid-tied PV inverter is connected to the output of a Multi, Inverter or Quattro. PV power is first used to power the loads, then to charge the battery, and any excess PV power can be fed back to the grid. In AC-coupled systems, two inverters are used: the photovoltaic inverter and the energy storage invert...