| Abstract |
A control for a three phase inverter, acting as a voltage source, is presented. The inverter is able to
work in parallel with a constant-voltage constant-frequency system, as well as with other inverters or
also in standalone. There’s no communication interface needed. The different power sources can share
the load also under unbalanced conditions. To achieve this the frequency and the amplitude of the grid
voltage can have small variations. By introducing a secondary control load sharing is even possible
without frequency or amplitude deviations in steady-state. Measurements are presented to prove the
good control behaviour. |
