What are grid-supporting functions in vector-controlled grid-tied inverters?

The early days of wind- and PV-power were rough: the engineers fought against oil-leaks in the pitch-mechanism of wind-power-systems and PV-inverters lived up to their German name Wechselrichter (wechsel = change) in an unfortunate way, as they had to be replaced very often due to defects. But since the early 1990s lot of things have... Read More