Guru
Joined: 12/11/2017
Location: United StatesPosts: 564
| Posted: 12:48pm 10 Apr 2026 |
I suggest to 'scope the AC output waveform using an isolation transformer. If pwm is close to 100% I am guessing that the waveform peaks will be clipped.
Assuming VB = 22 volts is an accurate voltage at the inverter input, find out if there is excessive wiring voltage drop from the battery terminals to the inverter input with a 3 kW AC load:
Battery terminal voltage = ?
Inverter power input terminal voltage = ?