Experimental Analysis of the Arrays of Macro Fiber Composite Patches for Rotational Piezoelectric Energy Harvesting from a Shaft

Four arrays of three MFC patches, glued onto a rotating shaft, were compared in laboratory research. The first array was based on delta circuit and equipped with one three-phase rectifier; the second star third parallel connection full-bridge rectifiers; fourth series rectifiers. generated highest value maximal electric power comparison to rest arrays. It experimentally observed that or circuits patches rectifier higher than connections rectifiers, connected series. current for low values load resistance (from 10 kΩ 40 depending experiment). For connection.