Latest photovoltaic inverter test specifications

How do I test a PV inverter?

Use an AC / grid emulator to load and test the inverter’s output. Verifying the performance of PV inverters under varying weather and load conditions requires simulating solar arrays in the lab and AC / grid.

Can a PV inverter be connected to a low voltage distribution system?

This document is most applicable to large systems where PV inverters are connected to utility high voltage (HV) distribution systems. However, the applicable procedures may also be used for low voltage (LV) installations in locations where evolving UVRT requirements include such installations, e.g. single-phase or 3-phase systems.

Do inverters need to be tested?

This protocol has been adopted by the California Energy Commission (CEC) and any inverter used in a CEC approved PV system must be tested by an independent lab to this protocol. The CEC lists test results for thousands of inverters on its webpage. An example of a CEC test result is illustrated in the following figure.

How do you test a MPPT inverter?

Make sure to test the inverters according to the industry standards, such as EN50530, which provides a procedure for measuring the efficiency of MPPT. Use an AC / grid emulator to load and test the inverter’s output.

How do I test a solar array en50530?

Verifying the performance of PV inverters under varying weather and load conditions requires simulating solar arrays in the lab and AC / grid. With the Keysight solar array simulator and software, engineers can test up to 12 MPPT channels simultaneously and perform complex static and dynamic EN50530 tests automatically with just a few clicks.

Can a low voltage inverter be used for LV installations?

However, the applicable procedures may also be used for low voltage (LV) installations in locations where evolving UVRT requirements include such installations, e.g. single-phase or 3-phase systems. The assessed UVRT performance is valid only for the specific configuration and operational mode of the inverter under test.