verytricky
New Member
I have a wind turbine that generates from 40v to 150v.
I have been experimenting with various blade designs to try and get a blade great for low wind, but which twists in high winds, so the turbine does not overspeed.
To compare results I have a computer logged anometer, and I have been recording the units of electricity generated from the linked inverter, measured hourly. Sort of like picking your nose with boxing gloves. It gives me a rough idea of what works, but there is no direct corelation - which I need.
I have - from a previous project - a 0 to 30 volt data logger. I can link it up to the same computer as the anometer, and get per second readings of the wind speed and the voltage produced, which is perfect.....
BUT
The turbine produces 40v to 150v so that is useless for the data logger.
I am too cheap to spend the 300+ for a data logger in the correct voltage range. I figure there has to be some type of clever thingy you can do with a few resistors or so to get the voltage divided down to the data loggers range, but still representitive of the original voltage.
If it were an AC system I could use a transformer, but the voltage is DC.
My skill level is more mechanical than electronic. ie I can build a powerstation and wire up a house, but can do no more than plug in a computer, so and answers need to be dumbed down to my level.....
I have been experimenting with various blade designs to try and get a blade great for low wind, but which twists in high winds, so the turbine does not overspeed.
To compare results I have a computer logged anometer, and I have been recording the units of electricity generated from the linked inverter, measured hourly. Sort of like picking your nose with boxing gloves. It gives me a rough idea of what works, but there is no direct corelation - which I need.
I have - from a previous project - a 0 to 30 volt data logger. I can link it up to the same computer as the anometer, and get per second readings of the wind speed and the voltage produced, which is perfect.....
BUT
The turbine produces 40v to 150v so that is useless for the data logger.
I am too cheap to spend the 300+ for a data logger in the correct voltage range. I figure there has to be some type of clever thingy you can do with a few resistors or so to get the voltage divided down to the data loggers range, but still representitive of the original voltage.
If it were an AC system I could use a transformer, but the voltage is DC.
My skill level is more mechanical than electronic. ie I can build a powerstation and wire up a house, but can do no more than plug in a computer, so and answers need to be dumbed down to my level.....