Operation of Parallel Inverters in Microgrid Using New Adaptive PI Controllers Based on Least Mean Fourth Technique

Figure 8

Voltage profile, power sharing, and THD at PCC for balanced loads by proposed control.

(a) Voltage waveforms before and after filter per phase

(b) Voltage profile at PCC for balanced loads by proposed control

(c) Active power consumed by all loads in microgrid

(d) Injected active power by inverter 1

(e) Injected active power by inverter 2

(f) Injected active power by inverter 3

(g) Voltage THD at PCC for balanced loads by proposed control