开绕组感应电机无权重系数预测转矩控制策略  

Predictive Torque Control Strategy for Open-end Winding Induction Motor Without Weight Coefficient

作　　者：向婉芹[1] 赖俊峰 XIANG Wan-qin;LAI Jun-feng(Chongqing Electric Power College,Chongqing 400053,China;不详)

机构地区：[1]重庆电力高等专科学校,电力工程学院,重庆400053 [2]重庆大学,自动化学院,重庆400044

出　　处：《电力电子技术》2021年第7期84-87,共4页Power Electronics

基　　金：重庆市科技局技术创新与应用示范一般项目(CSTC2018JSCX-MSYBX0343)。

摘　　要：为了提高开绕组感应电机(OEWIM)驱动系统的控制性能,设计了一种新颖的无权重系数预测转矩控制(PTC)策略。传统模型预测方案采用单一成本函数实现转矩控制、定子磁链控制和开关频率限制控制等多个控制目标,故存在权重系数整定繁琐且复杂的问题。而新方案将转矩和定子磁链控制目标糅合,并结合有限预测电压矢量的简单排序分析代替了单一成本函数,实现了无权重系数的PTC,可以规避与权重系数设置相关的所有问题。利用双逆变器驱动OEWIM实验平台开展了实验测试,实验结果验证了新PTC方案的控制性能。In order to improve the control performance of the open-end winding induction motor(OEWIM)drive system,a novel predictive torque control(PTC)strategy without weight coefficient is designed.The traditional model predictive scheme uses a single cost function to achieve the multiple control objectives such as torque control,stator flux control and switching frequency limitation,so there is a problem of the cumbersome and complicated weight coefficient.The new scheme combines the torque and stator flux control objectives,and replaces the single cost function by a simple ranking analysis with limited the prediction voltage vectors to achieve PTC without weight coefficient,which can avoid all problems related to the setting of weight coefficient.Experiments are carried out by using dual inverters driving OEWIM experimental platform,and the experimental results verified the control performance of the new PTC scheme.

关 键 词：开绕组感应电机 预测转矩控制 无权重系数 

分 类 号：TM31[电气工程—电机]