PV Inverter

I'm not sure there is really a difference, but PV inverters might have some provision to compensate for varying input voltage depending on how sunny it is, whereas industrial inverters would typically assume a near-constant input voltage from batteries.

Dear jinxnao,

I think that there isn't much difference. Normally Solar Inverters in Grid Tied/Off Grid Systems work on 12VDC, 24VDC & 48VDC range. They are connected directly to the battery system like in UPS System.

I hope this info helps.

Regards,

The overall efficiency of photovoltaic (PV) systems connected to the grid depends on the efficiency of direct current (DC) of the solar modules to alternate current (AC) inverter conversion.

The requirements for PV inverter connection include: maximum power point, high efficiency, control power injected into the grid, high power factor and low total harmonic distortion of the currents injected into the grid. According to the grid demands; both the injected active and reactive powers are controlled.

Industrial inverters do not require to address items like max power point or to control reactive power and are usually standby when the AC source is available (on failure of regular AC source the batteries take up the load).

I have heard some people refer to industrial servo motor drives and vfd's as inverters. In some sense, they are not wrong, but the term can be misleading when confused with a PV inverter.