Performance enhancement for stand-alone wind energy conversion system using super-twisting algorithm

IF 4.7 3区工程技术 Q2 ENERGY & FUELS

Energy Reports Pub Date : 2025-01-27 DOI:10.1016/j.egyr.2025.01.048

Daniel Borice Tchoumtcha, Clotaire Thierry Sanjong Dagang, Godpromesse Kenné

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引用次数: 0

Abstract

This paper presents the super-twisting algorithm (STA) of a permanent magnet synchronous generator (PMSG) associated with a rectifier, a bidirectional DC–DC converter, and an inverter, all controlled by pulse width modulation (PWM). The bidirectional DC–DC converter, which feeds a battery, is controlled to maintain the DC bus voltage at a desired constant value. The purpose of the developed STA is to regulate the d-axis current, monitor the maximum power point, regulate the DC bus voltage by controlling the charge/discharge of a parallel-mounted battery, and regulate the voltage at the load. The STA was studied, and the results obtained were compared with the synergetic control method and the fractional-order PI control method. The results show that the mean value of the THD of the PMSG stator current for the synergetic control is 90.1%, for the FO-PI control is 94.80%, and for the STA is 94.85%; the mean value of the THD of the current at the load terminals is 0.92% for the synergetic control, 1.371% for the FO-PI, and 0.4775% for the STA; the mean value of the THD of the voltage at the load terminals is 1.22% for the synergetic control, 1.618% for the FO-PI, and 0.595% for the STA; the mean value of the relative error in rotational speed is 4.7306e−05 for the synergetic control, 7.9849e−04 for the FO-PI, and 4.5787e−04 for the STA; the mean value of the relative error in d-axis load terminal voltage is 0.0161 for the synergetic control, 0.0035 for the FO-PI, and 0.0023 for the STA; the mean value of the relative error in DC bus voltage is 0.0156 for the synergetic control, 0.0140 for the FO-PI, and 0.0067 for the STA. Simulations performed in the Matlab/Simulink numerical environment demonstrated the effectiveness of the proposed control method when the wind power system is operated under load variations and parameter uncertainties.

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基于超扭转算法的单机风能转换系统性能增强

本文提出了由整流器、双向DC-DC变换器和逆变器组成的永磁同步发电机（PMSG）的超扭转算法。为电池供电的双向DC - DC转换器被控制以保持直流母线电压在所需的恒定值。开发的STA的目的是调节d轴电流，监测最大功率点，通过控制并联电池的充放电来调节直流母线电压，并调节负载电压。对STA进行了研究，并与协同控制方法和分数阶PI控制方法进行了比较。结果表明：协同控制的PMSG定子电流THD均值为90.1%，FO-PI控制的THD均值为94.80%，STA控制的THD均值为94.85%；协同控制的负载端电流THD平均值为0.92%，FO-PI为1.371%，STA为0.4775%；协同控制的负载端电压THD平均值为1.22%，FO-PI为1.618%，STA为0.595%；协同控制的转速相对误差均值为4.7306e−05，FO-PI为7.9849e−04，STA为4.5787e−04；协同控制的d轴负载端电压相对误差均值为0.0161，FO-PI为0.0035，STA为0.0023；协同控制的直流母线电压相对误差均值为0.0156，FO-PI为0.0140，STA为0.0067。在Matlab/Simulink数值环境下进行的仿真验证了所提出的控制方法在负荷变化和参数不确定的情况下运行的有效性。

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

Energy Reports Energy-General Energy

CiteScore

8.20

自引率

13.50%

发文量

2608

审稿时长

38 days

期刊介绍： Energy Reports is a new online multidisciplinary open access journal which focuses on publishing new research in the area of Energy with a rapid review and publication time. Energy Reports will be open to direct submissions and also to submissions from other Elsevier Energy journals, whose Editors have determined that Energy Reports would be a better fit.