Fault-tolerant control of Y-connected three-phase induction motor drives without speed measurement

An optimized vector control strategy for induction machines during open‐phase failure condition using particle swarm optimization algorithm

“…The proposed controller, as compared with Sayed-Ahmed and Demerdash, 19 has a faster dynamic response thanks to the use of fewer PI controllers. Furthermore, the proposed control scheme has a simpler control structure compared with Nikpayam et al 21 In addition, the proposed IRFOC strategy has better performance in both healthy and faulty modes compared with that of Jannati et al 20 and Nikpayam et al 21 The main contributions of the present study can be highlighted as follows:…”

“…Thus, an unbalanced rotational matrix for the components of the stator voltage (T vs (θ)) can be achieved as (21): : ð21Þ…”

“…Other control methods proposed for 3ϕ IM drives during OPF conditions are based on unbalanced rotational transformations. 20,21 The proposed method in Jannati et al, 20 is too complex and needs considerable computational time. In addition, the proposed extended Kalman filter based on direct vector control system in Nikpayam et al, 21 requires heavy real-time computation and depends on a proper selection of machine parameters and covariance matrices.…”

“…20,21 The proposed method in Jannati et al, 20 is too complex and needs considerable computational time. In addition, the proposed extended Kalman filter based on direct vector control system in Nikpayam et al, 21 requires heavy real-time computation and depends on a proper selection of machine parameters and covariance matrices. Moreover, the proposed control methods in Jannati et al, 20 and Nikpayam et al, 21 were optimized during only healthy mode or faulty mode due to the use of the same PI controllers during these two modes.…”

“…In addition, delta‐connected 3ϕ IMs are mainly utilized for high power industrial applications. Other control methods proposed for 3ϕ IM drives during OPF conditions are based on unbalanced rotational transformations 20,21 . The proposed method in Jannati et al, 20 is too complex and needs considerable computational time.…”