Dear community. I activated "Weak AC", because otherwise my system would not sync with the generator. This solved my issues. However, I rarely use the generator. But when I do, I really need it.
I read the technical description below:
"In Weak AC mode the phase of the mains voltage with respect to the generated PWM is no longer important. The resulting current will always be automatically in sync with the voltage.
However there will be more losses and the maximum power which can be reached this way is less so the charge current will be less. (...)
The mention of the Power Factor not being 1 indicates that there is quite some variation in the current and it may be far from sinusoidal. It might be relatively ok when using a sinusoidal voltage.
It does not mean that there is a phase shift." and
"This leading or lagging power factor will have the effect of demanding more kVa from the generator for the same or less DC Watts delivered to the batteries. You may need to further reduce the DC Current Limit in the Charger tab of VEConfigure if the generator continues to overload after changing this setting.
Effectively, when Weak AC is enabled, the total charge current possible will be less that the rated maximum charge current output of the charger (under normal conditions)."
Two questions:
- Does this negatively and significantly affect my power consumption when no generator is used, and the Quattro is not inverting? (Pass through from power grid)
- Does this negatively and significantly affect my power consumption when no generator is used, and the Quattro is inverting from accumulators / solar?
It does not sound like it, but I want to be sure. Lower charging speeds and power consumption when generator is running are not an issue for me. But if this would lead to batteries being discharged quicker or electricity bill rising - that would be a problem.
Thank you!
