I'm doing some experiments on a wind turbine in my spare time. At the moment, my system runs well and I can measure good output values from my generator. For example:
- 38V @18Hz at 30 RPM
- 97V @37Hz at 60 RPM
- 220V @72Hz at 120 RPM
- 343V @108Hz at 180 RPM
- 466V @144Hz at 240 RPM
The maximum measured current output is 18A.
Now, I would like to use an inverter in order to obtain a three phase output. The problem is that I tried to search on the net and I only found inverters for solar panels which require a stable voltage input (my rectified voltage output keeps changing depending on the RPMs). My system has a variable voltage output depending on the RPMs (obviously) and the frequency changes when the RPMs increase, too.
What is the most suitable solution to obtain a stable voltage output regardless the input RPMs? Is there a commercial inverter which accepts variable inputs?