基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略

林珊; 赵涛; 农兴中; 朱泓钢; 王春芳

doi:10.19912/j.0254-0096.tynxb.2025-0213

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基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略

更新时间：2026-07-22

- 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略
- 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略
- 太阳能学报 2026年47卷第6期页码：120-130
- 作者机构：
- 作者简介：
- 基金信息：
  
  国家自然科学基金青年项目（52307209）;广州市科技计划项目（2024B04J0011）
- DOI：10.19912/j.0254-0096.tynxb.2025-0213
  中图分类号： TM464
- 网络首发：2026-07-08，
  
  纸质出版：2026
- 稿件说明：
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林珊, 赵涛, 农兴中, 等. 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略[J]. 太阳能学报, 2026,47(6):120-130.

林珊, 赵涛, 农兴中, et al. 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略[J]. 2026, 47(6): 120-130.
林珊, 赵涛, 农兴中, 等. 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略[J]. 太阳能学报, 2026,47(6):120-130. DOI： 10.19912/j.0254-0096.tynxb.2025-0213.

林珊, 赵涛, 农兴中, et al. 基于自适应三次谐波注入的级联H桥逆变器直流侧电压纹波抑制策略[J]. 2026, 47(6): 120-130. DOI： 10.19912/j.0254-0096.tynxb.2025-0213.

摘要

针对三相级联H桥拓扑直流侧电压会出现二倍电网电压频率的纹波问题

提出一种基于自适应三次谐波注入的控制策略

能够在功率因数角发生变化的情况下

有效避免过调制风险

并根据系统实时运行状态计算出最佳的三次谐波注入量

从而实现对直流侧电压纹波的最优抑制。该策略能够有效抑制光伏阵列偏离最大功率点运行的问题

从而提高系统的发电量。最后

构建全实物实验平台

并通过实验结果证明所提策略的有效性和可行性。

Abstract

The cascaded H-bridge topology exhibits distinct advantages in the field of photovoltaic （PV） power generation with its modular design

smaller filtering inductance

and simplified layout. However

the three-phase cascaded H-bridge inevitably inherits the inherent issue of the single-phase full-bridge inverter

namely

double-line frequency voltage ripple on the DC-link. This issue leads to an output voltage deviation of photovoltaic array from its maximum power point

thereby reducing the power generation efficiency of system. To address this issue

this paper presents an innovative control method based on adaptive third-harmonic injection

which effectively avoids over-modulation risks under varying power factor angles. The method can calculate the optimal third-harmonic injection based on the real-time operating conditions of the system

thereby achieving optimal suppression of DC-link voltage ripple. Finally

a full-scale experimental platform is constructed

and experimental results confirm the effectiveness and feasibility of the proposed method.

关键词

Keywords

references

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