Analysis and implementation of a three-phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions
Analysis and implementation of a three-phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions
复制标题
使用模块化 Cuk 整流器平衡和不平衡供电条件的三相功率因数校正方案的分析和实现
DOI：
10.1049/iet-pel.2012.0243
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Viswanathan
中科院分区：
文献类型：
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作者：
M. Umamaheswari;Govindarajan Uma;S. Viswanathan
在这项研究中，提出了一种三相AC-DC变流器配合DC-DC Cuk变流器模块以实现单位功率因数的分析和设计。采用了两种参考电流产生技术。在第一种方案中，参考电流是在平衡供电条件下利用瞬时对称分量理论产生的。在第二种方案中，扩展的同步检测方法如等电流判据、等功率判据和等阻抗判据被用于不平衡供电条件下的参考电流产生。该控制策略采用三个滞环电流控制器进行电源电流整形，外环电压环采用比例积分控制器进行负载电压调节。为了验证所提方法的有效性，搭建了dSPACE信号处理器控制的样机。仿真和实验结果表明，该系统能在较宽的负载变化范围内提供稳定的输出电压，功率因数接近1。
In this study, the analysis and design of a three-phase AC–DC converter followed by DC–DC Cuk converter modules to achieve unity power factor is presented. Two methods of reference current generation techniques are employed. In the first scheme, reference current is generated using instantaneous symmetrical component theory under balanced supply conditions. In the second scheme, extended synchronous detection methods such as equal current criterion, equal power criterion and equal impedance criterion are used for reference current generation under unbalanced supply conditions. The control strategy uses three hysteresis current controllers for source current shaping and an outer voltage loop with proportional-integral controller for load voltage regulation. To validate the proposed method, a prototype controlled by dSPACE signal processor is set up. Simulation and experimental results indicate that the proposed system offers regulated output voltage for wide load variations and provides power factor close to unity.