Modeling of electric energy harvesting using piezoelectric windmill

摘要: This letter reports a theoretical model for determination of generated electric power from piezoelectric bimorph transducers in low frequency range far the resonance. The is divided into two parts. In first part open circuit voltage response transducer under ac stress computed based on bending beam theory bimorph. second part, this acts as input to equivalent capacitor connected across pure resistive load. results were verified by comparing it with measured prototype windmill. windmill consisting ten was operated wind speed 1–12 mph. A 7.5 mW at 10 mph matching load 6.7kΩ. found give very accurate prediction and an excellent experim...