Inverter is a device that inverts (or you can say converts) the DC into AC – in simple terms. It means, you can attach some specified ‘direct current (DC)’ to its input and it will produce some specific type of ‘alternating current (AC)’ output. A Solar inverter (or converter) is the most critical component in the balance of system (BOS) of solar projects. Solar inverters have different powering capabilities, they can power ‘electrical AC loads’ of various classes including inductive, resistive, capacitive, combination type, linear, non-linear etc., and are available in both power delivery circuits of single or three phase; solar inverters also comes with some specific functions not found in other types of converters like maximum power point tracking (MPPT) and anti-islanding features.
Because of the intermittent nature of solar and its connectivity – AC input beside DC are also common in solar Inverters like the grid input; the classification of these inverters is thus based on two of its main facets i.e., the input source(s) and how its output is put to work (generated/connected). In our view, off-grid, off-grid/hybrid, on-grid, grid-tied/hybrid types are generally in use.