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

Tarusan, Siti Azura Ahmad; Jidin, Auzani; Jamil, Mohd Luqman Mohd; Karim, Kasrul Abdul; Sutikno, Tole

doi:10.11591/ijpeds.v11.i3.pp1675-1688

Cited by 13 publications

(6 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in practice, dSPACE-based DTC operates at a minimum sample rate of 50μs, which may cause the torque to travel between the upper and lower band vigorously, resulting in overshoot and undershoot. In addition, the system will often select the reverse voltage vector during overshoot and undershoot, which may cause the system to produce the common DTC problem, namely variable switching frequency [57]- [59]. Integrating the DTC with predictive control has lately received much attention due to its capacity to minimise torque ripple and operate at a constant switching frequency [60]- [62].…”

Section: Introductionmentioning

confidence: 99%

Torque ripple minimization in direct torque control at low-speed operation using alternate switching technique

Aihsan

Jidin

Alias

et al. 2022

IJPEDS

Self Cite

View full text Add to dashboard Cite

Direct torque control (DTC) of induction motor is prominent to offer instant torque and flux control with a simple control structure. However, this scheme suffers from two major drawbacks namely high torque ripple and variable switching frequency of the inverter, especially during low-speed operation. During the low-speed condition, the positive torque slope is very steep and torque overshoot occurs frequently resulting in the torque ripple become of great significance. This paper proposes a new and effective technique to reduce the torque ripple by integrating the alternate switching technique to the inverter switching status to limit the torque slope surge. By varying the frequency and duty cycle of the alternate switching, the rate of surge can be controlled resulting in the chances of overshoots, and selection of reverse voltage vector can be avoided. The feasibility of the proposed technique has been validated using MATLAB/Simulink software and through experimental results. The results show the proposed alternate switching technique minimizes over 40% reduction in the torque ripple while maintaining the simple structure of DTC.

show abstract

Section: Introductionmentioning

confidence: 99%

Torque ripple minimization in direct torque control at low-speed operation using alternate switching technique

Aihsan

Jidin

Alias

et al. 2022

IJPEDS

Self Cite

View full text Add to dashboard Cite

show abstract

“…To address these flaws, a group of researchers collaborated to combine the benefits DTC and FOC into a single framework, resulting in the novel DTC-SVM approach [31]. Unlike conventional DTC, which uses instantaneous values and direct computations to produce the inverter switching state, the DTC-SVM uses average values and the SVM algorithm to produce the inverter switching state [32]. The DTC-SVM technique is used to estimate the reference voltage vector, which is subsequently adjusted using the SVM technique to build inverter switches.…”

Section: Dtc-svm Algorithmmentioning

confidence: 99%

Performance Enhancement of Induction Motor Based on Three-Level T-Type Inverter Using DTC-SVM

Abbas

Hassan

2022

ITM Web Conf.

View full text Add to dashboard Cite

Induction motors (IM) that are driven using the conventional direct torque control algorithm (DTC) suffer from vital drawbacks which are high ripples in the torque and flux. These ripples result due to the use of a look-up table and hysteresis comparators which causes variable switching frequency. Moreover, the use of a traditional two-level inverter leads to the production of low-quality voltage and current. The work presented in this paper proposed a modified control system to overcome these drawbacks. The proposed control system is based on the use of the space vector modulation-based DTC algorithm (DTC-SVM) for driving three-phase IM via a three-level T-Type inverter. The conventional DTC-SVM algorithm has been modified to match the work of the proposed inverter. The modification process was based on the mapping of the standard DTC-SVM algorithm in the space vector of the three-level inverter. The conventional and the modified control systems are implemented using MATLAB/Simulink package. The comparison of the standard and the modified DTC-SVM has been performed by simulation. Simulation results showed the superiority of the proposed algorithm in terms of reducing ripple in torque and flux and improving the quality of current and voltage supplied to the motor.

show abstract

“…The measured amplitudes of the stator fluxes and electric torque are compared to their reference values. So, the outputs of the comparators with the number of sectors are located as it is in Table ( 1) [33,34]. Table 1 shows the switching selection table for the stator flux vector in the first sector of the d-q plane [25].…”

Section: The Conventional Dtc Architecturementioning

confidence: 99%

An Improved Direct Torque Control Topology of a Double Stator Machine Using the Fuzzy Logic Controller

et al. 2021

View full text Add to dashboard Cite

In this paper, a dual stator induction machine is studied. This nonlinear system is built on the Matlab Simulink tool to test the efficiency of the direct torque control loop for controlling this complicated system. It makes the speed and torque tracking more comfortable. On the other side, it is mandatory to assure the independence of the electrical alimentation of the dual stator. All these goals are guaranteed with this direct torque control technic. The conventional Direct torque control loop is based on the switches' controllers. This method makes many fluctuations in the speed performances, the flux evolution, and the electromagnet torque progress. The conventional direct torque control drawbacks are resolved by improving this control loop by using the fuzzy control topology. Then, an improved direct torque control loop using the intelligent controllers is presented to control the torque and speed of a dual stator induction machine and supervise the two stator fluxes and currents. Matlab Simulink tool was used for implanting this innovation and showing the behavior of the results.

show abstract

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

Cited by 13 publications

References 64 publications

Torque ripple minimization in direct torque control at low-speed operation using alternate switching technique

Torque ripple minimization in direct torque control at low-speed operation using alternate switching technique

Performance Enhancement of Induction Motor Based on Three-Level T-Type Inverter Using DTC-SVM

An Improved Direct Torque Control Topology of a Double Stator Machine Using the Fuzzy Logic Controller

Contact Info

Product

Resources

About