电工技术学报  2020, Vol. 35 Issue (10): 2130-2140    DOI: 10.19595/j.cnki.1000-6753.tces.190520
电机与电器 |
基于矢量分区的永磁同步电机三电平双矢量模型预测磁链控制
於锋1,2, 朱晨光1, 吴晓新1, 张雷2
1. 南通大学电气工程学院 南通 226019;
2. 苏州绿控传动科技股份有限公司 苏州 215000
Two-Vector-Based Model Predictive Flux Control of Three-Level Based Permanent Magnet Synchronous Motor with Sector Subregion
Yu Feng1,2, Zhu Chenguang1, Wu Xiaoxin1, Zhang Lei2
1. School of Electrical Engineering Nantong University Nantong 226019 China;
2. Suzhou Lvkon Transmission S&T Co. Ltd Suzhou 215000 China;
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摘要 为改善永磁同步电机(PMSM)三电平供电系统的稳态控制性能,减小计算负担,该文提出一种基于新型矢量分区的PMSM三电平双矢量模型预测磁链控制方法。首先,将电磁转矩和磁链的控制转化为对单一定子磁链矢量的控制,从而消除了传统预测转矩控制中的权重系数。进一步,深入分析了不同扇区内基本电压矢量对系统运行的影响,通过构建虚拟斜率将备选矢量数量减少至1~3个;同时,为降低电机转矩脉动,建立了占空比优化准则进而获得了双非零矢量的控制效果。最后,仿真与实验的验证表明该控制策略的有效性。
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关键词 永磁同步电机三电平模型预测磁链控制虚拟斜率转矩脉动占空比    
Abstract:A new model predictive flux control scheme with two-vector is proposed in a manner where a novel vector subregion is adopted. The proposed control scheme can improve the steady-state control performance of permanent magnet synchronous motor (PMSM) supplied by a three-level inverter, and reduce the computation burden. Firstly, the control of electromagnetic torque and flux is transformed into the control of single stator flux vector, and thus the weighting factor in traditional predictive torque control can be eliminated. Secondly, the influence of basic voltage vectors in different sectors on system operation is analyzed in depth, and the number of alternative vectors is reduced to 1-3 in terms of virtual slope. Meanwhile, to reduce the torque ripple, the optimization criterion of duty cycle is established, and the control performance of double non-zero vector is further obtained. Finally, the simulation and experimental results show the effectiveness of the proposed control strategy.
Key wordsPermanent magnet synchronous motor    three-level    model predictive flux control    virtual slope    torque ripple    duty cycle   
收稿日期: 2019-05-06     
PACS: TM351  
通讯作者: 吴晓新 男,1978年生,博士,副教授,研究方向为电力电子与电力传动。E-mail: wu.xx@ntu.edu.cn   
作者简介: 於 锋 男,1985年生,博士,副教授,研究方向为永磁电机变频调速控制及电力电子技术在电动汽车中的应用。E-mail: yufeng628@ntu.edu.cn
引用本文:   
於锋, 朱晨光, 吴晓新, 张雷. 基于矢量分区的永磁同步电机三电平双矢量模型预测磁链控制[J]. 电工技术学报, 2020, 35(10): 2130-2140. Yu Feng, Zhu Chenguang, Wu Xiaoxin, Zhang Lei. Two-Vector-Based Model Predictive Flux Control of Three-Level Based Permanent Magnet Synchronous Motor with Sector Subregion. Transactions of China Electrotechnical Society, 2020, 35(10): 2130-2140.
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