Forum Title: Electronic load control (for wind turbine etc)
Hello Everyone,I am looking for a controller, or circuit and ideas for a controller for a Wind turbine for heating purposes. I.e it would take the available energy from the turbine and heat water. Therefore it would have to match the load to match the turbine's output. Perhaps using PWM. I would like to experiment with 3-5kW, and high voltage (~200V) DC. I imagine this might give the simplest overall solution.
Category: General Electrical Discussion Post By: Noah Bradley (Chase, WI), 03/23/2017
at 200 volts DC you are are looking a commercial grade material. Have you checked with the turbine's maker?

- Keep Cool Air Cond. (Ojus, FL), 03/25/2017

Simple 230V AC electric resistance heating elements would work with 200V DC, I'd think- output would always match the input. Of course, at that level of power, you may be better off using an inverter (feeding a small battery bank) to feed a conventional heat pump for the higher efficiency. Might be easiest just to buy an off-the-shelf electric generating wind turbine to reduce electric costs vice trying to do something fancy.

- Ronald F (Fountain City, IN), 03/25/2017

You mention PWM. What are you thinking in this regard? I just want to know exactly what you are trying to do. PWM is consistant with the use of VFD's. How would you incorporate a VFD in this application? VFD's convert ac to a dc bus, then via the IGBT's it is outputed in a simulated signwave that is ac. So it's ac in and ac out.

- Leo H. Baker (Aurelius, NY), 03/25/2017

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