Enhanced Torque Control and Reduced Switching Frequency in Direct Torque Control Utilizing Optimal Switching Strategy for Dual-Inverter Supplied Drive

Rahim, M. Khairi; Jidin, Auzani; Sutikno, Tole

doi:10.11591/ijpeds.v7.i2.pp328-339

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…However, the effect of motor degradation was reflected in the change in motor load, which usually increased as the motor degraded [ 23 ]. Screw wear was also related to the motor load, which decreased as the screw wore out because the screw speed increased owing to the reduced radius of the blade [ 24 ]. Note that the motor load decreased with increasing screw speed caused by wear but increased with an increase in the setting speed of the screw.…”

Section: Degradation Feature Analysis In the Systemmentioning

confidence: 99%

Degradation Feature Extraction Method for Prognostics of an Extruder Screw Using Multi-Source Monitoring Data

Park

Lee²,

Kim³

et al. 2023

Sensors

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Laboratory-scale data on a component level are frequently used for prognostics because acquiring them is time and cost efficient. However, they do not reflect actual field conditions. As prognostics is for an in-service system, the developed prognostic methods must be validated using real operational data obtained from an actual system. Because obtaining real operational data is much more expensive than obtaining test-level data, studies employing field data are scarce. In this study, a prognostic method for screws was presented by employing multi-source real operational data obtained from a micro-extrusion system. The analysis of real operational data is more challenging than that of test-level data because the mutual effect of each component in the system is chaotically reflected in the former. This paper presents a degradation feature extraction method for interpreting complex signals for a real extrusion system based on the physical and mechanical properties of the system as well as operational data. The data were analyzed based on general physical properties and the inferred interpretation was verified using the data. The extracted feature exhibits valid degradation behavior and is used to predict the remaining useful life of the screw in a real extrusion system.

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Section: Degradation Feature Analysis In the Systemmentioning

confidence: 99%

Degradation Feature Extraction Method for Prognostics of an Extruder Screw Using Multi-Source Monitoring Data

Park

Lee²,

Kim³

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…This is done by floating the neutral point of motor winding to connect the dual two-level inverters into both ends of motor windings. Some improvements of its look-up table has been discussed in [24]- [27] related to the extra operation, modified look-up table and improvised switching table. On the other hand, the matrix converter (MC) on DTC was introduced in the early 2000's [28].…”

Section: Multilevel Inverter Dtc 31 Modified Look-up Tablementioning

confidence: 99%

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

Tarusan¹,

Jidin²,

Jamil³

et al. 2020

IJPEDS

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<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>

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“…In general, total voltage vector produced by conventional or two-level inverter is eight thus it limits the variation of voltage vector for the inverter switching. By employing MLI, the voltage vector increases thus large degree of freedom for optimal switching can be achieved [17]. Several topologies of MLI have been developed and employed in DTC as studied in [18][19][20][21][22][23].On the other hand, Space Vector Pulse Width Modulation (SVPWM) strategy is another approach employed in DTC (DTC-SVM).…”

Section: Introductionmentioning

confidence: 99%

The simulation analysis of torque ripple reduction by using optimal voltage vector in DTC fed by five-level CHB inverter

Tarusan

Jidin

Jamil

2020

IJEECS

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<span>In this paper, the improvement of torque ripple reduction will be focused based on the optimal voltage vector. This is attained by using five-level CHB inverter that applies in DTC drive control as a proposed method. The analysis is performed and simulated by using MATLAB/Simulink. In order to support the analysis, the comparison is realized between proposed method and conventional method which it applies two-level inverter. It will be analysed at constant torque region or steady-state operation on different range of operating speed which the speed is controlled by adjusting the motor load. Meaning that, the speed controller is neglected during analysis. Nevertheless, the adjustment of motor load must be applicable to the optimal voltage vector. The look-up table of five-level CHB inverter will become a guideline to select the optimal voltage vector. Therefore, it can maintain the simple structure of DTC hysteresis-based that fed by using five-level CHB inverter. As a result, the torque ripple can be minimized and torque capability can be retained even at low operating speed compared to the conventional DTC.</span>

show abstract

Enhanced Torque Control and Reduced Switching Frequency in Direct Torque Control Utilizing Optimal Switching Strategy for Dual-Inverter Supplied Drive

Cited by 3 publications

References 14 publications

Degradation Feature Extraction Method for Prognostics of an Extruder Screw Using Multi-Source Monitoring Data

Degradation Feature Extraction Method for Prognostics of an Extruder Screw Using Multi-Source Monitoring Data

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

The simulation analysis of torque ripple reduction by using optimal voltage vector in DTC fed by five-level CHB inverter

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