电工技术学报  2018, Vol. 33 Issue (16): 3925-3934    DOI: 10.19595/j.cnki.1000-6753.tces.170560
电机与电器 |
一种消除权重系数三矢量模型预测转矩控制
徐艳平, 李园园, 张保程, 周钦
西安理工大学电气工程系 西安 710048
Three-Vector Based Model Predictive Torque Control of Eliminating Weighting Factor
Xu Yanping, Li Yuanyuan, Zhang Baocheng, Zhou Qin
Department of Electrical Engineering Xi’an University of Technology Xi’an 710048 China
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摘要 提出一种消除权重系数三矢量模型预测转矩控制策略。该策略在一个采样周期中作用三个电压矢量,通过两次电压矢量选择,得出两个有效电压矢量,第三个电压矢量为零矢量;根据转矩和磁链无差拍的控制方式计算出每个电压矢量的作用时间,同时提出一种无权重系数的价值函数,价值函数中只包含转矩一个变量。实验结果表明:所提出的控制策略减小了双矢量模型预测控制中转矩和磁链脉动,避免了传统价值函数中权重系数需要设计的问题,降低了价值函数计算的复杂度。
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关键词 权重系数三矢量价值函数模型预测转矩控制    
Abstract:In this paper, a three-vector based model predictive torque control (MPTC) strategy for eliminating weighting factor is proposed. In this strategy, there are three voltage vectors in each sampling period. Two effective voltage vectors are selected by twice voltage vector selections, and the third voltage vector is zero voltage vector. The durations of each voltage vector is calculated through the control method of torque and flux deadbeat. At the same time, a cost function without weighting factor is proposed, where the cost function only contains one variable of torque. Experimental results show that the proposed method can reduce torque and flux ripples of two-vector based MPTC, which avoids the need to design the weighting factor and reduces the complexity of cost function calculation.
Key wordsWeighting factor    three-vector    cost function    model predictive torque control   
收稿日期: 2017-05-05      出版日期: 2018-09-03
PACS: TM351  
通讯作者: 徐艳平 女,1977年生,博士,副教授,研究方向为电力电子与现代交流调速。E-mail: xuyp@xaut.edu.cn   
作者简介: 园园 女,1993年生,硕士研究生,研究方向为永磁同步电机及其控制。E-mail: Alicexaut@163.com
引用本文:   
徐艳平, 李园园, 张保程, 周钦. 一种消除权重系数三矢量模型预测转矩控制[J]. 电工技术学报, 2018, 33(16): 3925-3934. Xu Yanping, Li Yuanyuan, Zhang Baocheng, Zhou Qin. Three-Vector Based Model Predictive Torque Control of Eliminating Weighting Factor. Transactions of China Electrotechnical Society, 2018, 33(16): 3925-3934.
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