A Sliding Mode Approach to Enhance the Power Quality of Wind Turbines Under Unbalanced Voltage Conditions

Mohammad Javad Morshed; Afef Fekih

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A Sliding Mode Approach to Enhance the Power Quality of Wind Turbines Under Unbalanced Voltage Conditions

机译：在不平衡电压条件下提高风力发电机功率质量的滑模方法

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An integral terminal sliding mode-based control design is proposed in this paper to enhance the power quality of wind turbines under unbalanced voltage conditions.The design combines the robustness,fast response,and high quality transient characteristics of the integral terminal sliding mode control with the estimation properties of disturbance observers.The controller gains were auto-tuned using a fuzzy logic approach.The effectiveness of the proposed design was assessed under deep voltage sag conditions and parameter variations.Its dynamic response was also compared to that of a standard SMC approach.The performance analysis and simulation results confirmed the ability of the proposed approach to maintain the active power,currents,DC-link voltage and electromagnetic torque within their acceptable ranges even under the most severe unbalanced voltage conditions.It was also shown to be robust to uncertainties and parameter variations,while effectively mitigating chattering in comparison with the standard SMC.

机译：为了提高风力发电机在不平衡电压条件下的电能质量，本文提出了一种基于整体终端滑模控制的控制设计。该设计结合了整体终端滑模控制的鲁棒性，快速响应和高质量的瞬态特性。控制器的增益通过模糊逻辑方法自动调整，在深电压骤降条件和参数变化的情况下评估了该设计的有效性，并将其动态响应与标准SMC方法进行了比较。性能分析和仿真结果证实了该方法能够将有功功率，电流，直流母线电压和电磁转矩保持在可接受的范围内，即使在最严重的不平衡电压条件下也是如此。它也显示出对不确定性的鲁棒性和参数变化，同时有效缓解比较中的颤动使用标准SMC。

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《自动化学报（英文版）》 |2019年第2期|566-574|共9页
作者
Mohammad Javad Morshed; Afef Fekih;
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作者单位

Department of Electrical and Computer Engineering, University of Louisiana at Lafayette, Lafayette, LA 70504 USA;

Department of Electrical and Computer Engineering, University of Louisiana at Lafayette, Lafayette, LA 70504 USA;

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收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 eng
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A Sliding Mode Approach to Enhance the Power Quality of Wind Turbines Under Unbalanced Voltage Conditions

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