单相NPC逆变器三矢量模型预测电流控制

徐岸非; 蔡玉华; 袁雷; 梅加伟

doi:10.19912/j.0254-0096.tynxb.2023-1712

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (2) : 175-183. DOI: 10.19912/j.0254-0096.tynxb.2023-1712

单相NPC逆变器三矢量模型预测电流控制

徐岸非, 蔡玉华, 袁雷, 梅加伟

作者信息 +

3-VECTOR MODEL PREDICTIVE CURRENT CONTROL OF SINGLE-PHASE NPC INVERTER

Xu Anfei, Cai Yuhua, Yuan Lei, Mei Jiawei

Author information +

文章历史 +

摘要

针对单相三电平中点钳位型（NPC）逆变器有限集模型预测电流控制（FCS-MPCC）无调制器、频率不固定、开关频率高的缺点,提出一种优化的三矢量多目标预测电流控制。该方法将电压矢量分成固定开关动作的若干扇区,通过计算占空比,从而实现开关频率固定的脉冲调制。其代价函数应用多目标预测控制,实现中点电位均衡和降低开关频率。此外,该文还考虑了延迟补偿。利用DSP-TMS320F28374D在单相NPC逆变器实验平台上实现所提策略,验证该方法的有效性。

Abstract

Aiming at the drawbacks of finite constraint set-model predictive current control （FCS-MPCC） for single-phase neutral point clamped （NPC） three-level inverters without modulator, unfixed frequency, and high switching frequency, an optimized 3-vector multi-objective predictive current control is proposed in this paper. The method divides the voltage vector into a number of sectors with fixed switching action by calculating the duty cycle, thus achieving pulse modulation with fixed switching frequency. The cost function applies multi-objective predictive control to achieve the balance of neutral point potential and reduce the switching frequency. In addition, the paper considers delay compensation. The effectiveness of the method is verified by implementing the proposed strategy on a single-phase NPC inverter experimental platform using a DSP-TMS320F28374D.

导出引用

徐岸非, 蔡玉华, 袁雷, 梅加伟. 单相NPC逆变器三矢量模型预测电流控制[J]. 太阳能学报. 2025, 46(2): 175-183 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1712

Xu Anfei, Cai Yuhua, Yuan Lei, Mei Jiawei. 3-VECTOR MODEL PREDICTIVE CURRENT CONTROL OF SINGLE-PHASE NPC INVERTER[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 175-183 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1712

中图分类号： TM464

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