基于新型权重因子校正和延时补偿的永磁同步电动机模型预测转矩控制 *

doi:10.11985/2021.01.004

电气工程学报 ›› 2021, Vol. 16 ›› Issue (1): 26-33.doi: 10.11985/2021.01.004

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基于新型权重因子校正和延时补偿的永磁同步电动机模型预测转矩控制 ^*

王海良¹^,²(), 刘世民³(), 陈永清⁴(), 尹玉才⁵()

1.北京科技大学能源与环境工程学院北京 100083
2.新兴际华集团技术中心北京 100070
3.中国五矿集团(唐山曹妃店)矿山控股有限公司唐山 063200
4.泰豪军工集团研究院北京 100166
5.新兴重工集团有限公司北京 100070

收稿日期:2020-04-02 修回日期:2020-05-22 出版日期:2021-03-25 发布日期:2021-03-25
作者简介:王海良,男,1964年生,硕士。主要研究方向为工业自动化及新能源、新材料。E-mail：wahal@163.com
刘世民,男,1965年生,教授级高级工程师。主要研究方向为工业自动化、电机控制系统调节。E-mail：liushimin_jd@126.com
陈永清,男,1969年生,教授级高级工程师。主要研究方向为永磁电机控制及电机优化设计。E-mail：chenyq00@vip.163.com
尹玉才,男,1964年生,高级工程师。主要研究方向为机械及自动控制。E-mail：13986363100@139.com
基金资助:
* 国家重点研发计划资助项目(2018YFC0810002)

PMSM Model Predictive Direct Torque Control Based on Novel Weighting Factor Tuning and Computation Delay Compensation

WANG Hailiang¹^,²(), LIU Shimin³(), CHEN Yongqing⁴(), YIN Yucai⁵()

1. School of Energy and Environment Engineering, University of Science and Technology Beijing, Beijing 100083
2. XXCIG Technology Center, Beijing 100070
3. China Minmetals Group (Tangshan Caofedian) Mine Holding Co., Ltd., Tangshan 063200
4. Tellhow Jungong Group Research Institute, Beijing 100166
5. Xinxing Heavy Industry Group Co., Ltd., Beijing 100070

Received:2020-04-02 Revised:2020-05-22 Online:2021-03-25 Published:2021-03-25

摘要/Abstract

摘要：

为解决永磁同步电动机(Permanent magnet synchronous motor,PMSM)模型预测直接转矩控制(Model predictive direct torque control,MPC-DTC)权重因子和计算延时问题,提出了新型权重因子校正和延时补偿策略,改善PMSM控制性能,完善模型预测转矩控制理论方法。为校核代价函数中的磁链和转矩权重因子,分析了权重因子的本质,利用标准化算法将磁链和转矩转换至无量纲、同幅值范围的变量,并根据转矩和磁链对控制电压波动的响应速度不同,理论地计算出MPC-DTC控制器中的权重因子。与传统的两步计算延时补偿策略不同,所提出的新型补偿方案基于“单周期双采样”算法,需要分三步执行：延时时间计算,补偿电流预测和补偿磁链及转矩预测。试验结果表明,提出的权重因子校核和延时补偿方法能够保证良好的系统性能。

关键词: 永磁同步电动机, 模型预测转矩控制, 权重因子校正, 计算延时补偿

Abstract:

In order to tune the weighting factors and solve the computation delay problem for the PMSM model predictive direct torque control (MPC-DTC), a novel factor tuning method and a compensation method are proposed. The proposed techniques have improved the PMSM control performance and enriched the MPC-DTC theories. To tune the weighting factors for the flux and torque,their natures are analyzed firstly. Then, normalization method is applied to the system, removing the units of the two parameters and converting them into the same range. Finally, according to the different response speed of the flux and torque to the voltage variations, a theoretical analysis and tuning method is developed. By contrast to the two-step compensation strategy, the novel delay compensation method is based on dual sampling in one switching period. The implementation of the new method is divided into three steps: delay calculation, current compensation and flux/torque compensation. The experimental results verify that the proposed tuning and compensation methods can ensure that the PMSM has good performance.

Key words: Permanent magnet synchronous motor (PMSM), model predictive direct torque control, weighting factor tuning, computation delay compensation

中图分类号:

TM351

王海良, 刘世民, 陈永清, 尹玉才. 基于新型权重因子校正和延时补偿的永磁同步电动机模型预测转矩控制 ^*[J]. 电气工程学报, 2021, 16(1): 26-33.

WANG Hailiang, LIU Shimin, CHEN Yongqing, YIN Yucai. PMSM Model Predictive Direct Torque Control Based on Novel Weighting Factor Tuning and Computation Delay Compensation[J]. Journal of Electrical Engineering, 2021, 16(1): 26-33.

图/表 11

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参考文献 19

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数值	参数
额定转速/ (r·min^-1)	3 000
直流电压U_dc/V	300
额定转矩T_l / (N·m)	4.5
绕组电感L_s/H	0.001 7
极对数p	5
转动惯量J/(kg·m²)	0.000 6
摩擦因数B	0.000 3
转子磁链幅值Ψ_f/Wb	0.055
绕组电阻R_s/Ω	0.43
采样频率/kHz	10

基于新型权重因子校正和延时补偿的永磁同步电动机模型预测转矩控制 ^*

PMSM Model Predictive Direct Torque Control Based on Novel Weighting Factor Tuning and Computation Delay Compensation

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