Open AccessDirect torque control of matrix converter‐fed permanent magnet synchronous motor drives based on master and slave vectors
Author(s) -
Yan Yan,
Zhao Jiaxin,
Xia Changliang,
Shi Tingna
Publication year - 2015
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2014.0031
Subject(s) - direct torque control , control theory (sociology) , vector control , torque , torque motor , flux (metallurgy) , damping torque , computer science , magnet , duty cycle , voltage , engineering , physics , induction motor , control (management) , materials science , electrical engineering , artificial intelligence , thermodynamics , metallurgy
A novel direct torque control strategy is proposed for matrix converter (MC)‐based permanent magnet synchronous motor drive systems, which can achieve smooth control of torque and flux with fixed switching frequency. Analytical expression of torque and flux corresponding to different MC voltage vectors are derived. Evaluation functions for torque and flux are established. A master‐vector and a slave‐vector are selected from a switching table, whose duty cycles are calculated by the evaluation functions. Experiments with a prototype are carried out. The results show that the proposed method can achieve smooth torque and flux performance and fast dynamic response.