Size a grid-forming inverter for microgrid or islanded operation with voltage and frequency regulation.
Input Parameters
Results
--
Inverter Rating
kVA
--
Surge Capacity
kVA
--
Real Power Capacity
kW
--
Reactive Power Capacity
kVAR
Note: Grid-forming inverters create the voltage reference (V/f source). They must handle motor inrush currents of 5-7× rated.
Reference
Continuous kVA = (Peak Load / PF) × 1.2 safety
Motor Surge = Motor Load × 6 (LRA)
Surge kVA = (Peak + Motor Surge) / PF
Real Power = kVA × PF
Reactive Power = kVA × sin(arccos(PF))