Is your inverter designed to drive passive loads or the network? Or both? The control algorithms are rather different, and you may require extra safety circuits/software when driving the network to handle the case when the power fails. Most inverters shut down when this happens. However, inverters designed for remote area power supplies (RAPS) disconnect the network under power failure, switch over to passive load driving mode and carry on working..
Thanks for the information. Our system is actually is Grid connected and we are planning to keep the inverter connected even when the grid fails. Can you suggest me the parameters we need to consider for the same.
I was reading up online and I came across a few sites which suggested that it is better to use the PR control instead of PI/PID especially for single phase system. Could you please help me with it?