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Comparative investigation of bus-clamping PTC strategies for IM drives

机译：IM驱动器的总线钳位PTC策略的比较研究

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摘要

This paper presents a comparative investigation of four predictive torque control (PTC) strategies for two-level three-phase inverter fed induction motor drives. Among the considered PTC strategies, three novel PTC schemes based on bus-clamping techniques are developed. The proposed bus-clamping PTC (BC-PTC) schemes are founded on the basis of the clamping of each stator phase during 60°-interval in every half-cycle of the stator quantities. The performance of the four considered PTC strategies are evaluated through several simulation results at steady-state operation, with emphasis on various comparison criteria, such as: stator phase voltage and current waveforms, stator flux ripple, electromagnetic torque ripple, average total harmonic distortion, average switching frequency, average switching loss factor, and average quality factor. The simulation results reveal that the proposed BC-PTC schemes are much more efficient in terms of torque ripple, switching frequency, and switching power losses over the entire range of the stator frequency.
机译：本文介绍了对两级三相逆变器供电的感应电动机驱动器的四种预测转矩控制（PTC）策略的比较研究。在考虑的PTC策略中，开发了三种基于总线钳位技术的新颖PTC方案。所提出的母线夹紧PTC（BC-PTC）方案是基于在定子数量的每个半周期内的60°间隔内每个定子相位的夹紧的基础上建立的。通过几种稳态条件下的仿真结果评估了四种考虑的PTC策略的性能，重点是各种比较标准，例如：定子相电压和电流波形，定子磁通纹波，电磁转矩纹波，平均总谐波失真，平均开关频率，平均开关损耗因子和平均品质因子。仿真结果表明，在整个定子频率范围内，所提出的BC-PTC方案在转矩脉动，开关频率和开关功率损耗方面效率更高。

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