Speed sensorless direct torque control for three-level diode-clamped inverter fed induction motor using adaptive flux observer

Usta, Mehmet Ali; Okumuş, Halil İbrahim; Güven, Seher; Durak, Elif Selin

doi:10.1109/eleco.2015.7394457

Cited by 3 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, the adaptive observer was often utilized because of the abandonment of open-loop integration and the insertion of available mechanism in the stator resistance estimation [72]. An example of the sensorless DTC using speed adaptive flux observer was shown in Figure 10 by using NPC-DTC.…”

Section: Sensorless Controlmentioning

confidence: 99%

A review of direct torque control development in various multilevel inverter applications

Tarusan¹,

Jidin²,

Jamil³

et al. 2020

IJPEDS

View full text Add to dashboard Cite

<span>Multilevel inverter (MLI) is commonly utilized in direct torque control (DTC) for medium and high power applications. The additional voltage vectors generated by MLI can be manipulated to achieve the optimal selection for the inverter switching states in the DTC control systems. Previously, a review of DTC which focused more on the two-level inverter for induction motor as well as a review of the multilevel converter in industrial applications had been implemented individually. However, a review on DTC development in MLI was insufficient in both papers. Therefore, this paper aims to give a comprehensive review of the improvement of DTC via various MLI applications. It is reviewed according to the applicable multilevel inverter topologies in the DTC system. The comparison of DTC by using conventional and multilevel inverter is synthesized. Thus, this review paper will hopefully lead researchers in further research activities actively.</span>

show abstract

Section: Sensorless Controlmentioning

confidence: 99%

A review of direct torque control development in various multilevel inverter applications

Tarusan¹,

Jidin²,

Jamil³

et al. 2020

IJPEDS

View full text Add to dashboard Cite

show abstract

“…The emboldening characteristics of IM, peculiarly the cage IM, are low cost, high efficiency, simple construction and less maintenance (Lin and Fang, 2001; Cabal-Yepez et al , 2015). Nonetheless its multiple advantages, the dynamic behavior of the IM is often very complex, given that its modeling culminates in a system of nonlinear, strongly coupled and multi-variables equations (Usta et al , 2015). These constraints require more advanced control algorithms, which is theoretically a challenging task to face.…”

Section: Introductionmentioning

confidence: 99%

Sensorless DTC-SVM applied to an induction motor controlled by a three-level inverter using SMSFO

Jnayah

Khedher

2022

COMPEL

View full text Add to dashboard Cite

Purpose The direct torque control (DTC) of induction motor (IM) drive is featured by high ripples in the electromagnetic torque and stator flux profiles because they are controlled by two hysteresis regulators. Furthermore, the machine flux is not directly measurable. Hence, it is better to reconstitute it from the instantaneous electrical equations of the machine. Once the stator flux is estimated, we can guarantee a reliable sensorless DTC control. Thus, the purpose of this research work is to ensure fast response and full reference tracking of the IM under sensorless DTC strategy with desired dynamic behavior and low ripple levels. Design/methodology/approach In this work, an improved DTC strategy, which is DTC_SVM_3L, is suggested. The first step of the designed approach is to substitute the conventional inverter feeding the motor with a three-level inverter because it guarantees reduced switching losses, improved quality of voltage waveform and low-current total harmonic distortion rate. The second aim of this paper is to make the IM operate at a constant switching frequency by using the nearest three vectors-based space vector modulation (SVM) technique rather than hysteresis controllers. The third objective of this study is to conceive a sliding-mode stator flux observer, which can improve the control performances by using a sensorless algorithm to get an accurate estimation, and consequently, increase the reliability of the system and decrease the cost of using sensors. The stability of the proposed observer is demonstrated based on the Lyapunov theory. To overcome the load change disturbance in the proposed DTC control strategy, this paper exhibits a comparative assessment of four speed regulation methods: classical proportional and integral (PI) regulator, fuzzy logic PI controller, particle swarm optimization PI controller and backstepping regulator. The entire control algorithm was tested under different disturbances such as stator resistance and load torque variations. Findings It was ascertained that the IM, controlled with three-level inverter, exhibits good performances under the proposed DTC-SVM strategy based on a sliding-mode observer. The robustness of the suggested approach against parameter variations is also proved. Originality/value The theoretical development of the proposed control strategy is thoroughly described. Then, simulations using Matlab/Simulink software are launched to investigate the merits of the sensorless DTC-SVM command of three-level inverter-fed IM drive with different speed regulators.

show abstract

Dynamic simulation of ST-DTC with three-level inverter for three-phase induction motor

Mahanta

Barik

Panigrahi³

et al. 2017

2017 International Conference on Power and Embedded Drive Control (ICPEDC)

View full text Add to dashboard Cite

Speed sensorless direct torque control for three-level diode-clamped inverter fed induction motor using adaptive flux observer

Cited by 3 publications

References 8 publications

A review of direct torque control development in various multilevel inverter applications

A review of direct torque control development in various multilevel inverter applications

Sensorless DTC-SVM applied to an induction motor controlled by a three-level inverter using SMSFO

Dynamic simulation of ST-DTC with three-level inverter for three-phase induction motor

Contact Info

Product

Resources

About