Hi,
I run an ESS and have done for years. I've had very few issues with electrical noise.
The only time I've had noise issues is when I push the VFD to 75% or higher. In the event I put a line reactor on the input oft he VFD and that solved it.
The problem is that VFDs draw a lot of current and particularly harmonic currents. These currents will impress themselves on the incoming 230VAC supply
and thereby pollute the power supply to your PC, your ESS , 24V and 48V supplies.
I'd recommend a line reactor of 5mH to 10mH at the input of your VFD. I would also recommend two stage EMI filters on the 230VAC input
to your PC, your ESS 5V supply and each of the other supplies.
https://nz.element14.com/corcom-te-c...ase/dp/9586474
Most people think shielding and earthing is the solution to electrical noise often overlooking that 'conducted' electrical noise is by far and away the most direct source
electrical noise to your noise sensitive components.
Craig