三电平并网逆变器低复杂度定频模型预测控制研究

张传金; 王珂; 张行; 唐轶; 李雨潭

doi:10.19912/j.0254-0096.tynxb.2024-1619

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (1) : 323-333. DOI: 10.19912/j.0254-0096.tynxb.2024-1619

三电平并网逆变器低复杂度定频模型预测控制研究

张传金^1,2, 王珂¹, 张行¹, 唐轶³, 李雨潭^1,2

作者信息 +

RESEARCH ON LOW COMPLEXITY FIXED FREQUENCY MODEL PREDICTIVE CONTROL OF THREE LEVEL GRID CONNECTED INVERTER

Zhang Chuanjin^1,2, Wang Ke¹, Zhang Xing¹, Tang Yi³, Li Yutan^1,2

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文章历史 +

摘要

为解决传统三电平并网逆变器模型预测控制中开关频率不固定、滚动优化计算量大的问题,提出一种低复杂度固定开关频率三电平并网逆变器模型预测控制策略。首先,利用冗余小矢量对中电电位的作用机理,构建参考电流跟踪单目标价值函数;然后,通过电压中轴矢量滚动优化并结合目标预测差值的q轴分量定位寻优核心区域,二次滚动优化后确定最优三矢量;进一步结合所选电压矢量在目标价值函数评估中产生的目标价值优化分配矢量作用时间;最后,通过Matlab/Simulink仿真模型和三电平并网逆变器实验平台对所提低复杂度定频模型预测控制策略进行验证。

Abstract

In order to solve the problems of variable switching frequency and large rolling optimization calculation in traditional three-level grid connected inverter model predictive control, a low complexity fixed switching frequency model predictive control strategy is proposed for three-level grid connected inverter. Firstly, utilizing the mechanism of action of redundant small vectors on the neutral-point potential, a reference current tracking single objective function is constructed. Then, rolling optimization of the voltage middle-axis vector and combining it with the q-axis component of the target prediction error to locate the optimal core area, the optimal three vectors are determined after a second rolling optimization. Further optimize the allocation of vector action time based on the error value generated by the selected voltage vector in the evaluation of the objective value function. Finally, the proposed low complexity fixed frequency model predictive control strategy is validated through Matlab/Simulink simulation model and three-level grid connected inverter experimental platform.

导出引用

张传金, 王珂, 张行, 唐轶, 李雨潭. 三电平并网逆变器低复杂度定频模型预测控制研究[J]. 太阳能学报. 2026, 47(1): 323-333 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1619

Zhang Chuanjin, Wang Ke, Zhang Xing, Tang Yi, Li Yutan. RESEARCH ON LOW COMPLEXITY FIXED FREQUENCY MODEL PREDICTIVE CONTROL OF THREE LEVEL GRID CONNECTED INVERTER[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 323-333 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1619

中图分类号： TM464

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