scholarly journals Comparative performance study of alternate fault-tolerant inverter configurations for direct torque control-based three-phase PM BLAC drives under single-phase open-circuit fault

2016 ◽  
Author(s):  
K.D. Hoang ◽  
Z.Q. Zhu
Keyword(s):  
Single Phase ◽  
Fault Tolerant ◽  
Direct Torque Control ◽  
Open Circuit ◽  
Torque Control ◽  
Performance Study ◽  
Comparative Performance ◽  
Three Phase

Direct-Torque-Control Fault-Tolerant Strategies for Three Induction Motor Drive Systems Operating Under Single-Phase Open-Circuit Fault

2020 ◽  
Author(s):  
Pedro H. M. Martins ◽  
Victor F. M. B. Melo ◽  
Gilielson F. da Paz ◽  
Isaac S. de Freitas
Keyword(s):  
Induction Motor ◽  
Single Phase ◽  
Fault Tolerant ◽  
Direct Torque Control ◽  
Open Circuit ◽  
Torque Control ◽  
Necessary Condition ◽  
Motor Drive ◽  
Induction Motor Drive ◽  
Drive Systems

This paper discusses Direct-torque-control(DTC)-based fault-tolerance strategiesapplied to three fault-tolerant induction motor drive systems when they operate under single-phase open-circuit fault. Despite the fact that these drive systems have already been discussed in the literature, the reported papers always make use of Field-oriented-control(FOC)-based fault compensation strategies. In this way, performed simulations show that DTC-based strategies are feasible and are able to provide circular flux trajectory, which is the necessary condition for the motor operate properly.

scholarly journals Switching Sequence Model Predictive Direct Torque Control of IPMSMs for EVs in Switch Open-Circuit Fault-Tolerant Mode

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5593
Author(s):  
Ting Yang ◽  
Takahiro Kawaguchi ◽  
Seiji Hashimoto ◽  
Wei Jiang
Keyword(s):  
Fault Tolerant ◽  
Direct Torque Control ◽  
Open Circuit ◽  
Torque Control ◽  
Flux Linkage ◽  
Switching Sequence ◽  
Space Vectors ◽  
Stator Flux ◽  
Maximum Torque Per Ampere ◽  
Capacitor Voltage Balance

A switching sequence model predictive direct torque control (MPDTC) of IPMSMs for EVs in switch open-circuit fault-tolerant mode is studied in this paper. Instead of selecting one space vector from the possible four space vectors, the proposed MPDTC method selects an optimized switching sequence from two well-designed switching sequences, including three space vectors, according to a new designed cost function of which the control objectives have been transferred to the dq-axes components of the stator flux-linkage under the maximum-torque-per-ampere control. The calculation method of the durations of the adopted space vectors in the optimized switching sequence is studied to realize the stator flux-linkage reference tracking. In addition, the capacitor voltage balance method, by injecting a dc offset to the current of fault phase, is given. Compared with the conventional MPDTC method, the complicated weighting factors designing process is avoided and the electromagnetic torque ripples can be greatly suppressed. The experimental results prove the effectiveness and advantages of the proposed scheme.

DTC of Three-Phase PM BLAC Motor Having One Phase Open-Circuit Fault with Current Model Flux Estimator

2012 ◽  
Vol 433-440 ◽  
pp. 2556-2560
Author(s):  
Kasem Utaikaifa
Keyword(s):  
Permanent Magnet ◽  
Current Model ◽  
Direct Torque Control ◽  
Design Procedure ◽  
Open Circuit ◽  
Measured Data ◽  
Torque Control ◽  
Three Phase ◽  
Control Topology

Direct torque control (DTC) of three-phase permanent magnet brushless AC (PM BLAC) motor having one phase open-circuit fault (OPOF) is presented. Torque and flux linkages of the faulty motor are estimated by proposed estimators. Control topology, voltage vectors and design procedure are described. Simulated results show that the proposed topology can be operated under fault situation at rated torque and speed operation. Performances of the system are validated by the measured data.

scholarly journals Comparative Study of Hysteresis Controller, Resonant Controller and Direct Torque Control of Five-Phase IM under Open-Phase Fault Operation

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1317
Author(s):  
Mahmoud A. Mossa ◽  
Hamdi Echeikh ◽  
Ahmed A. Zaki Diab ◽  
Hassan Haes Alhelou ◽  
Pierluigi Siano
Keyword(s):  
Fault Tolerant ◽  
Direct Torque Control ◽  
Detailed Comparison ◽  
Open Circuit ◽  
Performance Comparison ◽  
Torque Control ◽  
Control Techniques ◽  
Open Phase ◽  
Hysteresis Controller ◽  
Resonant Controller

The need for regulating the operation of unhealthy motor drives has motivated the researchers to modify the control techniques in order to be valid for the new drive state. The use of a fault-tolerant facility is an attractive feature of multiphase machines; therefore, the applicability of different controllers has been established for the operation under open-phase fault conditions. The considered control algorithms were utilized to analyze the operation of the unhealthy system and evaluating the capability of the control to regulate the speed and torque under the fault condition. However, the majority of these studies considered only one control algorithm to be tested with the faulty system without comparing its performance with other techniques. The performance comparison is a vital way to visualize the features and characteristics of each algorithm. For this purpose, this paper deals with the performance comparison of the hysteresis controller, RFOC based on resonant controller and direct torque control (DTC) control under open-circuit fault conditions. A detailed comparison between the three control techniques is presented to outline the main differences between the three control procedures and identify the most appropriate technique in between.

Adaptive Torque Ripple Suppression Methods of Three-Phase PMSM During Single-Phase Open-Circuit Fault-Tolerant Operation

2020 ◽  
Vol 56 (5) ◽  
pp. 4955-4965 ◽  
Author(s):  
Yuliang Guo ◽  
Lijian Wu ◽  
Xiaoyan Huang ◽  
Youtong Fang ◽  
Jiaming Liu
Keyword(s):  
Single Phase ◽  
Fault Tolerant ◽  
Torque Ripple ◽  
Open Circuit ◽  
Three Phase
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