Chad solar vfd drive

What is a solar VFD drive?

While solar VFD drive only accounts for a small portion of the total cost of an entire solar water pumping system, it is the main component of the whole system. The solar VFD controller regulates and controls how the system operates and converts that DC energy generated by PV module into AC power which can directly control the pump’s performance.

Is it safe to drive a VSD/VFD controller from a solar inverter?

I have however been told that it is risky to drive a VSD/VFD controller from a solar inverter, as the VSDs/VFDs apparently aren't very well behaved if they are not powered from a near perfect / smooth AC waveform supply (as one would get from the utility grid or a rotating generator).

How do I protect a PV inverter from a VFD?

The Generated Harmonics can (and are likely) to not be friendly to the PV inverter output. I'd suggest you construct a 3 phase 480VAC solar grid with 3, phased inverters, and run the motor directly from that. Otherwise, a 60KVA isolation transformer with additional high frequency filtering, may protect the PV inverter from the VFD

Why is my PV inverter NOT working with VFD & motor?

The actual issue is with the strange harmonics the VFD & Motor generate. In the industry, there are many instances of a perfectly fine 3 phase motor, fails with VFD. The Generated Harmonics can (and are likely) to not be friendly to the PV inverter output.