电源学报

基于NPC型三电平逆变器的固定开关频率改进模型预测控制策略

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王朝晖 ¹ , 冯凌 ² , 杨顺风 ¹ , 李哲 ¹ , 胡亮 ²

电源学报 | DC-AC逆变器 2025,23(5): 79-87

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电源学报 |DC-AC逆变器 2025 , 23 (5) : 79 -87

基于NPC型三电平逆变器的固定开关频率改进模型预测控制策略

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王朝晖¹, 冯凌², 杨顺风¹, 李哲¹, 胡亮²

作者信息

^1.西南交通大学电气工程学院，成都　611756

^2.中车株洲电力机车研究所有限公司，株洲　412001

通讯作者:

杨顺风（1984—　），男，通信作者，博士，副教授。研究方向：模块化多电平变流器运行与控制。E-mail：syang@swjtu.edu.cn。

作者简介:

王朝晖（1998—　），男，硕士研究生。研究方向：电力牵引交流传动及其控制。E-mail：Wang_zhh@foxmail.com。

冯凌（1991—　），男，博士。研究方向：电力牵引交流传动及其控制。E-mail：feng_ling@foxmail.com。

李哲（1997—　），男，硕士研究生。研究方向：电力牵引交流传动及其控制。E-mail：li_zhe_li@163.com。

胡亮（1989—　），男，硕士。研究方向：电力牵引交流传动及其控制。E-mail：huliang2@csrzic.com。

Improved Model Predictive Control Strategy with Fixed Switching Frequency Based on NPC Three-level Inverter

Zhaohui WANG¹, Ling FENG², Shunfeng YANG¹, Zhe LI¹, Liang HU²

Affiliations

^1.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China

^2.CRRC Zhuzhou Institute Co., Ltd., Zhuzhou 412001, China

出版时间: 2025-09-30 doi: 10.13234/j.issn.2095-2805.2025.5.79

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摘要

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为了减少三电平逆变器模型预测电流控制MPCC（model predictive current control）算法的计算量，消除权重因子，实现固定开关频率并改善系统动静态性能，提出1种基于矢量集选择的三矢量固定频率模型预测电流控制算法。首先，通过分析电流和电压的关系，利用无差拍思想将对旋转坐标系下电流的控制转换为对静止坐标系下电压的控制，根据参考电压所在扇区选择候选矢量集，减少计算量。其次，为实现中点电位控制，根据中点钳位NPC（neutral point clamped）型三电平逆变器不同开关矢量对中性点的作用不同和切换平滑原则，合理选择不同的候选矢量集，利用伏秒平衡原理计算开关矢量作用时间，之后根据评价函数选择最优开关序列。最后，对比研究传统MPCC算法和所提算法，实验结果表明，所提算法具有计算量小、开关频率固定、电流谐波含量低等优点。

关键词

模型预测控制 / 计算量 / 权重因子 / 三电平逆变器

Abstract

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To reduce the calculation amount in the model predictive current control (MPCC) algorithm for a three-level inverter model, eliminate the weighting factor, achieve a fixed switching frequency and improve the steady-state performance of the system, a three-vector fixed frequency MPCC algorithm based on vector set selection is proposed. First, through the analysis of the relationship between current and voltage, the control of current under the rotational coordinate system is converted into the control of voltage under the stationary coordinate system by using the beat-free idea, and the candidate vector set is selected according to the sector where the reference voltage is located, thus reducing the calculation amount. Second, to achieve the midpoint potential control, according to the different effects of different switching vectors of a neutral point clamped (NPC) three-level inverter on the neutral point and the principle of switching smoothness, different candidate vector sets are reasonably selected, and the switching vector action time is obtained by using the principle of volt-second balance. Afterwards, the optimal switching sequence is selected according to the evaluation function. Finally, the traditional MPCC and the proposed algorithm are compared, and experimental results show that the proposed algorithm has advantages such as small calculation amount, fixed switching frequency and low current harmonic content.

Key words

Model predictive control / calculation amount / weighting factor / three-level inverter

引用本文

王朝晖, 冯凌, 杨顺风, 李哲, 胡亮. 基于NPC型三电平逆变器的固定开关频率改进模型预测控制策略. 电源学报, 2025 , 23 (5) : 79 -87 . DOI: 10.13234/j.issn.2095-2805.2025.5.79

Zhaohui WANG, Ling FENG, Shunfeng YANG, Zhe LI, Liang HU. Improved Model Predictive Control Strategy with Fixed Switching Frequency Based on NPC Three-level Inverter[J]. Journal of Power Supply, 2025 , 23 (5) : 79 -87 . DOI: 10.13234/j.issn.2095-2805.2025.5.79

参考文献

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2025年第23卷第5期

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文章信息

doi: 10.13234/j.issn.2095-2805.2025.5.79

接收时间：2022-09-02
首发时间：2026-10-26
出版时间：2025-09-30

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收稿日期：2022-09-02
修回日期：2022-10-20
录用日期：2022-11-03

基金

作者信息

^1.西南交通大学电气工程学院，成都　611756

^2.中车株洲电力机车研究所有限公司，株洲　412001

通讯作者:

杨顺风（1984—　），男，通信作者，博士，副教授。研究方向：模块化多电平变流器运行与控制。E-mail：syang@swjtu.edu.cn。

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https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2025.5.79

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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