I have a question about designing a solar-hydro energy system, as we ran into a problem in the implementation phase. We have 1 kW pv plant connected directly to a charge controller, and the 1 kW hydro turbine connects to it after a rectifier. The problem is that the charge controller draws as much power as it can from the turbine, making it stall.
The hydro turbine typically produces about 400 W, and when connected to the charge controller, it tries to produce the rated 1 kW, its frequency plummets and it stalls.
What options do we have to limit the power output of the turbine? Finding a cheap, off-the-shelf solution would be preferable but I wouldn't rule out building something ourselves.
Thank you for the help!