In orthopaedic surgeries, permanent magnet DC motors are used to drill the bone and fix the screws. The Motor drive employs an inner current and outer speed control loop with a conventional or modern controller. To en...In orthopaedic surgeries, permanent magnet DC motors are used to drill the bone and fix the screws. The Motor drive employs an inner current and outer speed control loop with a conventional or modern controller. To enhance the performance of the drive, this paper proposes a Brain Emotional Logic Based Intelligent Controller based chopper drive. The proposed drive scheme has been simulated using Matlab/Simulink and physically realized for validation. A comparative analysis has been made between the conventional PI controller based drive and the proposed system in order to prove that the proposed scheme has an edge over the traditional PI controller scheme counterpart.展开更多
超大功率电机斩波串级调速系统节能空间远大于小功率电机,但目前鲜有研究,主要是因为单个IGBT构成的斩波器不能解决超大功率电机转子电压高且电流过大问题。针对性提出多路斩波并联电路拓扑结构,基于状态空间平均法对主回路进行分析,建...超大功率电机斩波串级调速系统节能空间远大于小功率电机,但目前鲜有研究,主要是因为单个IGBT构成的斩波器不能解决超大功率电机转子电压高且电流过大问题。针对性提出多路斩波并联电路拓扑结构,基于状态空间平均法对主回路进行分析,建立系统数学模型。采用叠层母排结构,利用每个斩波器的电抗器自动均流,实现5 400 k W多路并联调速系统,突破了单路斩波器小电流瓶颈。实验数据表明各斩波支路电流均衡,总和为母线电流值,设备运行稳定,节能效果明显,经济和社会效益突出。展开更多
文摘In orthopaedic surgeries, permanent magnet DC motors are used to drill the bone and fix the screws. The Motor drive employs an inner current and outer speed control loop with a conventional or modern controller. To enhance the performance of the drive, this paper proposes a Brain Emotional Logic Based Intelligent Controller based chopper drive. The proposed drive scheme has been simulated using Matlab/Simulink and physically realized for validation. A comparative analysis has been made between the conventional PI controller based drive and the proposed system in order to prove that the proposed scheme has an edge over the traditional PI controller scheme counterpart.
文摘超大功率电机斩波串级调速系统节能空间远大于小功率电机,但目前鲜有研究,主要是因为单个IGBT构成的斩波器不能解决超大功率电机转子电压高且电流过大问题。针对性提出多路斩波并联电路拓扑结构,基于状态空间平均法对主回路进行分析,建立系统数学模型。采用叠层母排结构,利用每个斩波器的电抗器自动均流,实现5 400 k W多路并联调速系统,突破了单路斩波器小电流瓶颈。实验数据表明各斩波支路电流均衡,总和为母线电流值,设备运行稳定,节能效果明显,经济和社会效益突出。
