An Electrical Energy Regeneration Scheme for Energy Harvesting From a Vibration Absorption System in Tall Buildings

Electrical energy regeneration and storage in a tall structure with the installed passive pendulum tuned mass and damper (PPTMD) is investigated. While the passive vibration absorbing system works as an energy harvesting device, an electrical system including an electric motor, power electronic converters, a battery charger and storage subsystem are designed in order to store the energy taken from the structure vibrations which may be resulted from various external disturbances such as wind or earthquakes. The whole ۷۶-story structure and the relevant electrical energy regeneration system are modeled and simulated and the design scheme is implemented on a two-story reduced order lab structure equipped with PPTMD, the electronic circuit and the battery. A boost AC rectifier is designed and controlled to rectify the AC output voltage and is followed by a boost DC-DC converter as a battery charger for the Li-ion battery. A passivity-based controller (PC) and a sliding mode controller are designed for the rectifier and the battery charger, respectively. The simulation and the real test results demonstrate the efficient harvesting and storage of the energy extracted from the building.

کلیدواژه ها:

Energy regeneration ، Boost AC rectifier ، Boost DC-DC converter ، Passivity-based control ، and Sliding mode control