ZHANG Jin,ZHU Chenguang,YU Feng,et al.Improved Double-vector-based Model Predictive Flux Control of a Three-level-based Permanent Magnet Synchronous Motor[J].MICROMOTORS,2020,53(06):72-77.
永磁同步电机三电平改进型双矢量模型预测磁链控制
- Title:
- Improved Double-vector-based Model Predictive Flux Control of a Three-level-based Permanent Magnet Synchronous Motor
- Keywords:
- permanent magnet synchronous motor; three-level inverter; model predictive flux control; double vector
- 分类号:
- TM351; TM341; TP272
- 文献标志码:
- A
- 摘要:
- 为提高三电平逆变器控制的永磁同步电机系统的稳态性能,提出一种永磁同步电机三电平改进型双矢量模型预测磁链控制方法。首先,通过磁链预测模型来消除传统预测转矩控制中的权重系数。进一步,根据正负小矢量对中点电位作用效果相反来实现中点电位的平衡。同时,通过将无差拍控制目标由参考值更改为测量值,消除了传统零矢量占空比控制中的磁链偏差项,便于工程实现。最后,通过实验验证了该控制策略的有效性
- Abstract:
- In order to improve the steady-state performance of a permanent magnet synchronous motor supplied by a three-level inverter, an improved double-vector-based model predictive flux control method was proposed. Firstly, the weight coefficient in the traditional predictive torque control was cancelled out in term of flux prediction model. Secondly, the neutral point potential balance could be ensured along with the positive/ negative small vectors inherent to their opposite effect to neutral point potential. Meanwhile, the flux deviation term in the traditional zero vector duty cycle control scheme could be effectively eliminated by changing the deadbeat control target from the reference value to the measurement value, which was convenient for the practical implementation. Finally, the effectiveness of the control strategy was conducted and verified through experiments
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备注/Memo
收稿日期:2019-10-18
基金项目:宿迁市科技计划项目(H201921); 江苏省第十四批"六大人才高峰"人才资助项目(GDZB-167); 江苏高校品牌专业建设项目(PPZY2015C252)。
作者简介:张 锦(1986),男,硕士,讲师,研究方向为高性能电机控制技术及电力电子技术。
朱晨光(1996),男,硕士研究生,研究方向为电力电子与电力传动。
於 锋(1985),男,博士,副教授,研究方向为永磁电机变频调速控制。