期望扇区三矢量模型预测电流控制  

Three-Vector Model Predictive Current Control by Expected Sector

作　　者：卓书芳[1] 黄宴委[2] 傅忠云[3] 何用辉[1] ZHUO Shufang;HUANG Yanwei;FU Zhongyun;HE Yonghui(College of Digital Technology,Fujian Polytechnic of Information Technology,Fuzhou 350003,China;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China;Jincheng College,Nanjing University of Aeronautics and Astronautics,Nanjing 211156,China)

机构地区：[1]福建信息职业技术学院数字技术学院,福建福州350003 [2]福州大学电气工程与自动化学院,福建福州350108 [3]南京航空航天大学金城学院,江苏南京211156

出　　处：《长春师范大学学报》2024年第2期28-37,67,共11页Journal of Changchun Normal University

基　　金：国家自然科学基金项目“基于混杂动态监督控制技术的高性能工业伺服传动系统研究”(51977040);福建省中青年教师科研项目“永磁同步电机滑模控制技术研究”(JAT210726);福建省中青年教师科研项目“永磁同步电机模型预测电流控制研究”(JAT220564)。

摘　　要：三矢量模型预测电流控制需要依次计算6扇区电压矢量的作用时间,再由价值函数选取期望电压矢量,存在计算量大的缺点。本文提出一种基于期望扇区的三矢量模型预测电流控制,以快速确定期望电压矢量。首先,建立d-q轴的三矢量电流模型,给出其三矢量作用时间;然后,令预测电流为期望电流,可以获得期望电压矢量,并利用Clark变换得到α-β轴的期望电压矢量;最后,利用反正切函数求得期望电压矢量角度,确定期望电压矢量所在的期望扇区,得到期望三矢量及其作用时间。仿真和实验表明,该方法能够保持很好的控制系统性能。同时,该方法只需一次计算期望电压矢量角度即可确定期望三矢量及其作用时间,比传统三矢量方法有效缩短了算法执行时间约60%。The value function is used to select the expected voltage vector from the six groups of voltage vectors as the control variable in three-vector model predictive current control,which has the disadvantages on heavy computing cost.A novel three-vector model predictive current control with the expected sector is proposed to quickly determine the expected voltage vector as the current control variable.Firstly,three vector current model of d-q axis is set up with the execution time of the expected vector.Moreover,the expected vector is determined with the condition that predictive current is equal to expected current,and the expected voltage vector ofα-βaxis is determined by Clark transformation.Finally,the angle of the expected voltage vector is obtained by arctangent function to determine the expect sector and execution times of the expected vectors.Simulations and experiments show that the proposed method can maintain excellent control performance and effectively reduce the execution time on control cycle by about 60%of the traditional three-vector model prediction method.

关 键 词：永磁同步电机 电流控制 三矢量模型预测 期望扇区 计算量小 

分 类 号：TM341[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]