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Analysis and design of reduced order linear quadratic regulator control for three phase power factor correction using Cuk rectifiers

机译:使用Cuk整流器进行三相功率因数校正的降阶线性二次调节器控制的分析和设计

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摘要

In this paper, the analysis and design of reduced order linear quadratic regulator (ROLQR) control for power factor correction (PFC) in a three phase system is presented. The front end is a three phase diode rectifier followed by DC-DC Cuk converter modules with the common DC output. Instantaneous symmetrical component theory is used for the generation of reference current. The control strategy uses three inner ROLQR current controllers for source current shaping and an outer voltage loop using PI controller for load voltage regulation. It uses a single stage converter for both PFC and voltage regulation. The proposed method offers simple control strategy, fast transient response and power factor closed to unity. This type of three-phase three switch PFC converter features a simple and robust configuration compared to conventional six switch topology. To validate the proposed method, a prototype controlled by dSPACE 1104 signal processor is set up. Simulation and experimental results indicate that the proposed system offers regulated output voltage for wide load variations and power factor close to unity.
机译:本文针对三相系统中功率因数校正(PFC)的降阶线性二次调节器(ROLQR)控制进行了分析和设计。前端是一个三相二极管整流器,其后是具有公共DC输出的DC-DC Cuk转换器模块。瞬时对称分量理论用于生成参考电流。该控制策略使用三个内部ROLQR电流控制器进行电源电流整形,并使用一个外部电压环路使用PI控制器进行负载电压调节。它使用单级转换器进行PFC和电压调节。所提出的方法提供了简单的控制策略,快速的瞬态响应和接近统一的功率因数。与传统的六开关拓扑相比,这种类型的三相三开关PFC转换器具有简单而强大的配置。为了验证所提出的方法,建立了一个由dSPACE 1104信号处理器控制的原型。仿真和实验结果表明,所提出的系统为宽负载变化和功率因数接近统一提供了稳定的输出电压。

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