Research on Control Strategy of Three Phase T-type Three Level Photovoltaic Grid-connected Inverter

CHEN Jie; YANG Ruoting; HE Fengqin; QI Guobiao; LI Xuehong

doi:10.19805/j.cnki.jcspe.2026.250112

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Research on Control Strategy of Three Phase T-type Three Level Photovoltaic Grid-connected Inverter

更新时间：2026-06-11

- Research on Control Strategy of Three Phase T-type Three Level Photovoltaic Grid-connected Inverter
- Chinese Journal of Power Engineering Vol. 46, Issue 6, Pages: 53-59(2026)
- 作者机构：
- 作者简介：
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- DOI：10.19805/j.cnki.jcspe.2026.250112
  CLC： TM615
- Published：2026
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陈杰, 杨若婷, 何凤琴, 齐国彪, 李雪红. 三相T型三电平光伏并网逆变器的控制策略研究[J]. 动力工程学报, 2026, 46(6): 53-59.
陈杰, 杨若婷, 何凤琴, 齐国彪, 李雪红. 三相T型三电平光伏并网逆变器的控制策略研究[J]. 动力工程学报, 2026, 46(6): 53-59. DOI： 10.19805/j.cnki.jcspe.2026.250112.

DOI： 10.19805/j.cnki.jcspe.2026.250112

摘要

三相三电平T型变换器的控制策略是保证光伏并网发电系统安全稳定运行的关键。为解决传统静止坐标系下比例谐振控制器设计复杂问题

提出了一种静止坐标系下的改进控制策略

对三相三电平T型变换器的拓扑结构和基本工作原理进行了研究

分析了静止坐标系下控制策略与传统同步坐标系下控制策略的等效机理

给出了所提出控制策略的控制框图。最终通过Matlab/Simulink仿真软件搭建了三相三电平T型光伏并网逆变器的仿真平台

对所提出的控制策略进行了仿真研究

仿真结果验证了所提控制策略的有效性和可行性。

Abstract

The control strategy of three-phase three-level T-type converter is the key technology to ensure safe and stable operation of photovoltaic (PV) grid-connected power generation systems. In order to solve the complex problem of proportional resonance controller design in traditional stationary coordinate system

an improved control strategy was proposed in stationary coordinate system. The topology structure and basic working principle of three-phase three-level T-type converter were studied. The equivalent mechanism of control strategies was analyzed in stationary coordinate system and synchronous coordinate system. The control block diagram of the proposed control strategy was given. Finally

the simulation platform of three-phase three-level T-type photovoltaic grid-connected inverter was built by Matlab/Simulink simulation software

and the simulation research of the proposed control strategy was carried out. The simulation results verify the effectiveness and feasibility of the proposed control strategy.

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references

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