| Summary: | 碩士 === 國立中正大學 === 電機工程研究所 === 92 === This thesis presents the design and implementation of a driving system for self-sourcing magnetic braking bikes. The driving system can be divided into three parts, namely, the power converter, eddy current with braking magnetic force, and digital control system. In this thesis, a pulsating current is used to control the magnetic field of the electromagnet to increase the torque and to improve the performance of the conventional self-sourcing magnetic braking bikes. Thus, the maximum torque of the bike can be increased to 1.87-2.86 times than that of the conventional magnetic braking bikes. In addition, a digital control system is used to achieve the functions of linear power consumption and zero magnetic force start-up. As a result, self-sourcing magnetic braking bikes can be more suitable for human needs of exercise. Finally, a prototype is implemented to demonstrate the feasibility of the proposed self-sourcing magnetic braking bikes. The hardware experimental results show that the proposed self-sourcing magnetic braking bike has better performance than the conventional one.
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