基于MODE算法的光伏逆变器机电暂态模型LVRT控制方式与控制参数辨识研究

徐恒山; 王思维; 张旭军; 李晨阳; 黄永章

doi:10.19912/j.0254-0096.tynxb.2024-1242

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (11) : 308-318. DOI: 10.19912/j.0254-0096.tynxb.2024-1242

基于MODE算法的光伏逆变器机电暂态模型LVRT控制方式与控制参数辨识研究

徐恒山¹, 王思维¹, 张旭军², 李晨阳¹, 黄永章³

作者信息 +

RESEARCH ON LVRT CONTROL MODE AND CONTROL PARAMETER IDENTIFICATION OF ELECTROMECHANICAL TRANSIENT MODEL OF PV INVERTER BASED ON MODE ALGORITHM

Xu Hengshan¹, Wang Siwei¹, Zhang Xujun², Li Chenyang¹, Huang Yongzhang³

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文章历史 +

摘要

针对光伏逆变器低电压穿越（LVRT）控制方式及参数难以获取,导致建立精确仿真模型、分析并网特性受限的问题,提出一种基于多目标差分进化（MODE）算法的光伏逆变器机电暂态模型控制方式与参数辨识方法。首先,基于RT-LAB实时仿真平台进行光伏控制器半实物LVRT测试,获取参数辨识所需工况数据;其次,提取工况关键点建立辨识数据集,采用MODE算法分别辨识出逆变器在指定功率和指定电流方式下的控制参数,并引入自适应调参策略和非支配排序法改进算法性能;最后,对比LVRT工况在不同控制方式下的仿真效果以确定逆变器控制方式。结果表明,所提方法能准确辨识逆变器机电暂态模型的控制方式与参数。

Abstract

To address the difficulty in obtaining control methods and parameters for low voltage ride through of photovoltaic inverters, which leads to limitations in establishing precise simulation models and analyzing grid-connection characteristics, a method for identifying the control methods and parameters of photovoltaic inverter electromechanical transient models is proposed based on the multi-objective differential evolution algorithm. First, the hardware in the loop test of the PV controller was carried out based on RT-LAB to obtain the LVRT cases required for parameter identification. Second, key points in the cases are extracted to establish the identification dataset, and the control parameters of the inverter in the specified power and specified current modes are identified separately using the MODE algorithm. An adaptive parameter tuning strategy and non-dominated sorting are introduced to improve the algorithm performance. Finally, the simulation results of LVRT cases under different control modes are compared to determine the control mode of the inverter. The results show that the proposed method can accurately identify the control methods and parameters of the photovoltaic inverter electromechanical transient model.

导出引用

徐恒山, 王思维, 张旭军, 李晨阳, 黄永章. 基于MODE算法的光伏逆变器机电暂态模型LVRT控制方式与控制参数辨识研究[J]. 太阳能学报. 2025, 46(11): 308-318 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1242

Xu Hengshan, Wang Siwei, Zhang Xujun, Li Chenyang, Huang Yongzhang. RESEARCH ON LVRT CONTROL MODE AND CONTROL PARAMETER IDENTIFICATION OF ELECTROMECHANICAL TRANSIENT MODEL OF PV INVERTER BASED ON MODE ALGORITHM[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 308-318 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1242

中图分类号： TM464

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