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首页> 外文期刊>Power Electronics, IET >Analysis and implementation of a three-phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions
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Analysis and implementation of a three-phase power factor correction scheme using modular Cuk rectifier for balanced and unbalanced supply conditions

机译:平衡和不平衡电源条件下使用模块化Cuk整流器的三相功率因数校正方案的分析和实现

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摘要

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.
机译:在这项研究中,提出了三相AC-DC转换器和DC-DC Cuk转换器模块以实现单位功率因数的分析和设计。使用两种参考电流产生技术的方法。在第一种方案中,使用瞬时对称分量理论在平衡电源条件下生成参考电流。在第二种方案中,在不平衡电源条件下,使用扩展的同步检测方法(例如,相等电流标准,相等功率标准和相等阻抗标准)来生成参考电流。该控制策略使用三个磁滞电流控制器进行电源电流整形,并使用一个外部电压环路和比例积分控制器进行负载电压调节。为了验证所提出的方法,建立了一个由dSPACE信号处理器控制的原型。仿真和实验结果表明,所提出的系统可为各种负载变化提供稳定的输出电压,并提供接近于1的功率因数。

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