Fuzzy logic control of active and reactive power for a grid-connected photovoltaic system using a three-level neutral-point-clamped inverter

Q2 Energy

International Journal of Power Electronics and Drive Systems Pub Date : 2021-03-01 DOI:10.11591/IJPEDS.V12.I1.PP453-462

Ghrissi Tahri, Z. A. Foitih, A. Tahri

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引用次数: 5

Abstract

This paper aims to present a fuzzy logic control (FLC) of active and reactive power for a grid-connected photovoltaic system. The PV system is connected to the grid utility using a three-level neutral point clamped inverter (3L-NPC) and LCL filter. Two control strategies, fuzzy logic control, and conventional PI control are applied. The design of the two control strategies is based on calculating the instantaneous active and reactive power from the measured grid voltages and currents to allow the system to have a dynamic robustness performance against a sudden change in reactive power and satisfactory active power tracking under rapid solar radiation changes. The control strategies can transfer the total active power generated by the PV array to the grid utility with high power quality and a unity power factor. The simulation results using the Matlab-Simulink environment show that the FLC strategy has a better dynamic performance with less settling time, and overshoot compared to the conventional PI control.

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采用三电平中性点箝位逆变器的并网光伏系统有功与无功模糊控制

提出了一种并网光伏系统有功功率和无功功率的模糊逻辑控制方法。光伏系统通过三电平中性点箝位逆变器(3L-NPC)和LCL滤波器连接到电网公用事业。采用模糊逻辑控制和传统PI控制两种控制策略。这两种控制策略的设计基于从实测电网电压和电流中计算瞬时有功和无功功率，使系统对无功功率的突然变化具有动态鲁棒性，并在太阳辐射快速变化的情况下具有令人满意的有功跟踪。该控制策略可以将光伏阵列产生的总有功功率以较高的电能质量和统一的功率因数传输到电网公用事业。在Matlab-Simulink环境下的仿真结果表明，与传统PI控制相比，FLC策略具有更好的动态性能，稳定时间短，超调量小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Power Electronics and Drive Systems Energy-Energy Engineering and Power Technology

CiteScore

3.50

自引率

0.00%

发文量

期刊介绍： International Journal of Power Electronics and Drive Systems (IJPEDS) is the official publication of the Institute of Advanced Engineering and Science (IAES). The journal is open to submission from scholars and experts in the wide areas of power electronics and electrical drive systems from the global world. The scope of the journal includes all issues in the field of Power Electronics and drive systems. Included are techniques for advanced power semiconductor devices, control in power electronics, low and high power converters (inverters, converters, controlled and uncontrolled rectifiers), Control algorithms and techniques applied to power electronics, electromagnetic and thermal performance of electronic power converters and inverters, power quality and utility applications, renewable energy, electric machines, modelling, simulation, analysis, design and implementations of the application of power circuit components (power semiconductors, inductors, high frequency transformers, capacitors), EMI/EMC considerations, power devices and components, sensors, integration and packaging, applications in motor drives, wind energy systems, solar, battery chargers, UPS and hybrid systems and other applications.