功率质量改进的PMBLDCM驱动器可调速度应用与减少传感器Buck-Boost PFC转换器

2011 Fourth International Conference on Emerging Trends in Engineering & Technology Pub Date : 2011-11-18 DOI:10.1109/ICETET.2011.39

Sanjeev Singh, Bhim Singh

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引用次数: 45

摘要

本文采用一种改进电能质量的降压升压变换器馈入永磁无刷直流电动机(PMBLDCM)驱动器，实现永磁无刷直流电动机的调速运行。采用基于非隔离降压升压变换器的单相单开关AC-DC变换器拓扑结构进行功率因数校正(PFC)，并在断续导通模式(DCM)下通过电压跟随器控制进行传感器降阶。该PFC控制器确保在驱动器的宽速度范围内接近统一的功率因数，同时将交流电源电流的总谐波失真(THD)限制在IEC标准的规定范围内。以2kw、5.2 Nm PMBLDC电机驱动的空调压缩机为研究对象，在Matlab-Simulink环境下设计了基于PFC变换器的PMBLDCM驱动控制方案，并对其进行了建模和仿真。仿真结果验证了所提控制方案在改善交流市电电能质量方面的有效性。

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Power Quality Improved PMBLDCM Drive for Adjustable Speed Application with Reduced Sensor Buck-Boost PFC Converter

In this paper an improved power quality buck-boost converter fed permanent magnet brush less DC motor (PMBLDCM) drive is employed for adjustable speed operation of PMBLDCM. A single-phase, single-switch AC-DC converter topology based on non-isolated buck-boost converter is employed for power factor correction (PFC) and operated with voltage follower control in discontinuous conduction mode (DCM) operation for sensor reduction. This PFC controller ensures near unity power factor in wide speed range of the drive while restricting the total harmonic distortion (THD) in AC mains current within the specified limits of the IEC standard. The proposed control scheme with PFC converter based PMBLDCM drive is designed, modeled and simulated in Matlab-Simulink environment for an air conditioner compressor driven through a 2 kW, 5.2 Nm PMBLDC motor. The obtained results are presented to validate the effectiveness of the proposed control scheme for power quality improvement at AC mains.

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2011 Fourth International Conference on Emerging Trends in Engineering & Technology

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