A Simplified Finite-State Predictive Direct Torque Control for Induction Motor Drive

作     者：Habibullah, Md. Lu, Dylan Dah-Chuan Xiao, Dan Rahman, Muhammed Fazlur 

作者机构：Univ Sydney Sch Elect & Informat Engn Sydney NSW 2006 Australia Univ New S Wales Sch Elect Engn & Telecommun Sydney NSW 2052 Australia 

出 版 物：《IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS》 (IEEE Trans Ind Electron)

年 卷 期：2016年第63卷第6期

页      面：3964-3975页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

主　　题：Average switching frequency execution time induction motor (IM) predictive torque control (PTC) simplified algorithm torque and flux ripple 

摘      要：Finite-state predictive torque control (FS-PTC) is computationally expensive, since it uses all voltage vectors (VVs) available from a power converter for prediction and actuation. The computational burden is rapidly increased with the number of VVs and objectives to be controlled. Moreover, designing a cost function with more than two control objectives is a complex task. This paper proposes a simplified algorithm based on a new direct torque control (DTC) switching table to reduce the number of VVs to be predicted and objectives to be controlled. The new switching table also assists to reduce average switching frequency and its variation range. As a result, the cost function is simplified by not requiring to include the frequency term. Experimental results show that the average execution time and the average switching frequency for the proposed algorithm are greatly reduced without affecting the torque and flux performances achieved in the conventional FS-PTC.