Design of Fuzzy Control on Motor Drive and Regenerative Braking for Switched Reluctance Machine

• Main Authors: Yu-HengLee, 李昱亨
• Other Authors: Le-Ren Chang-Chien
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/28ekc2

碩士 === 國立成功大學 === 電機工程學系 === 106 === The theme of this thesis is to improve the torque ripple suppression and regenerative braking of the SRM. Several torque ripple reduction methods are surveyed including torque sharing function (TSF), direct torque control (DTC) and direct instantaneous control (DITC). Based on direct torque control (DTC), this thesis introduces constant frequency modulator with fuzzy logic, to further reduce torque ripple and maintain fixed operating frequency. A 3kW SRM and an asymmetric half bridge converter are used to verify the effectiveness of the proposed strategy. Besides, this thesis also addresses regenerative braking mode of the SRM by current hybrid chopping. Fuzzy logic is applied to the current controller to suppress current spikes when the SRM operates in high current condition (saturated region).