A High Power Rotating Energy Harvester Based On Gyroscopic Effect For Self-Powered Wireless Sensors

In this paper, a gyroscopic energy harvester is proposed with watts level output power that is capable to power wireless sensors with large energy requirement. The rotor, magnet and coil of the gyroscopic energy harvester are optimally designed to increase the electro-magnetic rotation effect. An experimental prototype was also built with power conversion stage to form a fully self-powered system. The output power of this gyroscopic energy harvester reaches to 904 mW at a speed of 4800 rpm. The output power of the gyroscopic energy harvester increases with its speed. And its output can provide sufficient power for the wireless sensor after the power conversion circuit. The proposed gyroscopic energy harvester can be applied to collect vibration energy from ocean wave and overhead lines for on-line monitoring of deep-sea floating wind power platform and long-distance power transmissions.