F型三电平并网逆变器频率自适应PR控制研究

武婷婷; 刘靓雯; 胡春璇; 蒋琪; 王欢; 王建渊

doi:doi:10.19912/j.0254-0096.tynxb.2024-2135

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F型三电平并网逆变器频率自适应PR控制研究

更新时间：2026-07-22

- F型三电平并网逆变器频率自适应PR控制研究
- Vol. 47, Issue 4, Pages: 31-37(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-2135
  CLC： TM464
- Online First：08 May 2026，
  
  Published：2026
- 稿件说明：
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武婷婷, 刘靓雯, 胡春璇, et al. F型三电平并网逆变器频率自适应PR控制研究[J]. 2026, 47(4): 31-37.
DOI：

武婷婷, 刘靓雯, 胡春璇, et al. F型三电平并网逆变器频率自适应PR控制研究[J]. 2026, 47(4): 31-37. DOI： doi:10.19912/j.0254-0096.tynxb.2024-2135.

摘要

针对传统三电平逆变器成本高、损耗大的问题

特别是其在电网电压不平衡和频率波动条件下并网电流谐波含量高的局限性

提出一种基于F型三电平并网逆变器的频率自适应比例谐振控制器控制策略。通过在F型三电平逆变器平台上验证

实验结果表明相较于传统准比例谐振控制

频率自适应比例谐振控制策略能使并网电流总谐波畸变率显著降低

在电网电压不平衡和频率波动工况下分别下降0.35%和0.45%

证实了所提控制策略的有效性和优越性

提升了并网电能质量。

Abstract

This study addresses the limitations of traditional three-level inverters

including high costs and significant power losses

particularly their elevated grid-connected current harmonic content under unbalanced grid voltages and frequency fluctuations. A frequency-adaptive proportional resonant（PR） control strategy is proposed for Type-F three-level grid-connected inverters. Experimental verification on the Type-F three-level inverter platform demonstrates that

compared with conventional quasi-PR control

the frequency-adaptive PR strategy significantly reduces the total harmonic distortion （THD） of grid-connected currents. Specifically

THD decreases by 0.35% and 0.45% under grid voltage imbalance and frequency fluctuation conditions

respectively. These results validate the effectiveness and superiority of the proposed control strategy in enhancing grid-connected power quality.

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references

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