2016年9月24日土曜日

arduino uno control inverter control fridge

basic sequence is the same as mechanical model.
instead of compressor on and off. control send pulse(duty 50%:50%) to the drive to run high, middle and low.
to too high consume power too much but too low could not make cool enough to the setting.
at the same time, too low rpm could not stop the compressor.
 this sample data.
it should be decided by different condition of the load in side of fridge.

those Hz depends upon compressor manufacturers, cooping capacity and etc.,

inverter compressor running video was uploaded to youtube as "inverter compressor testing".


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