A high-efficiency electromechanical battery

Series Hybrid Vehicles and Optimized Hydrogen Engine Design

“…Flywheels are used for energy storage in all vehicles, due to their high energy and power densities, and high turnaround efficiency. A detailed flywheel model has been incorporated into HVEC, which describes the measured performance of a flywheel which is c m n t l y in the prototype stage (Post et al 1993). The model predicts flywheel turnaround efficiency and bearing losses as a function of flywheel state of charge and power.…”

Characterization of Carbon Fiber Polymer Matrix Composites Subjected to Simultaneous Application of Electric Current Pulse and Low Velocity Impact

“…The EMB consisted of a carbon fiber rotor connected to magnetic bearings surrounded by a permanent magnet array. Applications included electric hybrid vehicles and other solidstate electronics on the order of 1 kW-hr (Post et al, 1993). In addition to EMB's, researchers have investigated the use of fiber-reinforced polymer matrix composites for the purpose of actually carrying an electric current.…”

Trapped-flux internal-dipole superconducting motor/generator

“…The Halbach array has a further advantage that the self demagnetization field is less than for conventional designs. The Halbach array can be used to produce external poles [9], or internal poles [10], [11], and the internal dipole concept is the subject of the present paper.…”