Design and Control of Single-Phase-to-Three-Phase PFC for Cereals Grinding System Fed by PV-Battery Microgrid

American Journal of Electrical Power and Energy Systems Pub Date : 2019-03-15 DOI:10.11648/J.EPES.20190801.14

Moustapha Diop, M. Thiam, A. Ndiaye, Samba Gueye, L. Thiaw

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引用次数: 1

Abstract

PV/Battery microgrids hold the most promising solution for providing electricity to remote areas. However, the power quality of these microgrids is vulnerable to nonlinear loads and power electronics components, often necessary to power certain systems such as the cereal grinding systems. These grinding systems consist of mills locally designed driven by induction motors. Given the constraints of microgrids and the structure of the cereal grinding system, a single-phase-to-three-phase Power Factor Corrector with two control strategies is proposed. The PFC control is used to control the power quality of the microgrid but also to regulate the DC-link voltage. The field oriented control strategy is used to improve the system efficiency. The performance of the power converter and control strategies are evaluated in simulation under Simulink environment. Results have verified the effectiveness of the proposed controls with a low current Total Harmonic Distortion, a near-unity power-factor and a significant efficiency improvement of cereals grinding system.

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光伏-电池微电网谷物研磨系统单相-三相PFC的设计与控制

光伏/电池微电网是向偏远地区供电最有希望的解决方案。然而，这些微电网的电能质量很容易受到非线性负载和电力电子元件的影响，而非线性负载和电力电子元件通常是为谷物研磨系统等特定系统供电所必需的。这些研磨系统由当地设计的由感应电机驱动的研磨机组成。考虑微电网的约束和磨粉系统的结构，提出了一种具有两种控制策略的单相-三相功率因数校正器。PFC控制用于控制微电网的电能质量，也用于调节直流链路电压。采用面向现场的控制策略，提高了系统的效率。在Simulink环境下对功率变换器的性能和控制策略进行了仿真评估。实验结果表明，所提出的控制方法具有较低的电流总谐波失真、接近统一的功率因数和显著的谷物研磨系统效率提高。

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American Journal of Electrical Power and Energy Systems

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