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首页> 外文期刊>International Journal of Power Electronics and Drive Systems >Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor
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Analysis and Implementation of a High Boost Ratio DC-DC Converter for Minimizing Commutation Torque Ripple in Brushless DC Motor

机译：高升压比DC-DC转换器的分析与实现，以最小化无刷直流电动机的换向转矩纹波

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摘要

Brushless dc motor still suffers from commutation torque ripple, which primarily depends on transient line current in the commutation interval. In order to control the incoming and outgoing phase currents to change at the same rate during commutation, this paper presents a novel high boost ratio DC-DC circuit topology in the front end of the inverter. With a suitable closed loop control scheme, the proposed high boost ratio DC-DC converter is operated with two different duty ratios one during commutation period and the other during non commutation period. The cause of commutation ripple is analyzed, and the way to adjust the duty ratio for obtaining the desired dc link voltage is introduced in detail. Finally, simulation and experimental results show that, compared with the existing dc–dc converter topologies, the proposed method can obtain the desired voltage much faster and minimize commutation torque ripple more efficiently
机译：无刷直流电动机仍会遭受换向转矩波动，这主要取决于换向间隔中的瞬态线路电流。为了控制换相期间输入和输出相电流以相同的速率变化，本文提出了一种在逆变器前端的新型高升压比DC-DC电路拓扑。通过合适的闭环控制方案，所提出的高升压比DC-DC转换器以两种不同的占空比工作，一个在换向期间，另一个在非换向期间。分析了换向纹波的原因，并详细介绍了调节占空比以获得所需直流母线电压的方法。最后，仿真和实验结果表明，与现有的dc-dc转换器拓扑相比，该方法可以更快地获得所需的电压，并更有效地最小化换向转矩的纹波

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