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首页> 外文期刊>International Journal of Engineering Research and Applications >A Single Phase to Three Phase PFC Half-Bridge Converter Using BLDC Drive with SPWM Technique
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A Single Phase to Three Phase PFC Half-Bridge Converter Using BLDC Drive with SPWM Technique

机译：采用SPWM技术的BLDC驱动的单相至三相PFC半桥转换器

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摘要

In this paper, a buck half-bridge DC-DC converter is used as a single-stage power factor correction (PFC) converter for feeding a voltage source inverter (VSI) based permanent magnet brushless DC motor (BLDC) drive. The front end of this PFC converter is a diode bridge rectifier (DBR) fed from single-phase AC mains. The BLDC is used to drive a compressor load of an air conditioner through a three-phase VSI fed from a controlled DC link voltage. The speed of the compressor is controlled to achieve energy conservation using a concept of the voltage control at DC link proportional to the desired speed of the BLDC. Therefore the VSI is operated only as an electronic commutator of the BLDC. The stator current of the BLDC during step change of reference speed is controlled by a rate limiter for the reference voltage at DC link. The proposed BLDC drive with voltage control based PFC converter is designed, modeled and its performance is simulated in Matlab-Simulink environment for an air conditioner compressor driven through a 1.5 kW, 1500 rpm BLDC motor. The evaluation results of the proposed speed control scheme are presented to demonstrate an improved efficiency of the proposed drive system with PFC feature in wide range of the speed and an input AC voltage.
机译：在本文中，降压半桥DC-DC转换器用作单级功率因数校正（PFC）转换器，用于为基于电压源逆变器（VSI）的永磁无刷直流电动机（BLDC）驱动器供电。该PFC转换器的前端是一个二极管桥式整流器（DBR），由单相交流电源供电。 BLDC用于通过从受控的直流母线电压馈入的三相VSI驱动空调的压缩机负载。使用与BLDC所需速度成比例的直流母线电压控制概念，可以控制压缩机的速度以实现节能。因此，VSI仅用作BLDC的电子换向器。在参考速度的阶跃变化期间，BLDC的定子电流由直流链路上参考电压的速率限制器控制。设计，建模了拟议的带有基于电压控制的PFC转换器的BLDC驱动器，并在Matlab-Simulink环境中模拟了通过1.5 kW，1500 rpm BLDC电机驱动的空调压缩机的性能。提出了所提出的速度控制方案的评估结果，以证明所提出的具有PFC功能的驱动系统在较宽的速度范围和输入交流电压下具有更高的效率。

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