Control of variable speed drive (VSD) based on diode clamped multilevel inverter using direct torque control and fuzzy logic

Alqudah, Amin; Mohaidat, Mohsen; Altawil, Ibrahim

doi:10.1109/aeect.2013.6716434

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…A fuzzy inference system with an estimating method was created to determine the origins of electrical disturbances and estimate electrical parameters, and a number of different PMUs were employed for simultaneous comparison between measurement systems. Either the PMU OS or a remote server can benefit from this fuzzy inference system's incorporation [10]. Improving the precision of measurements and diagnoses is the goal of this study, which will employ a variety of Violet and Hilbert transformations to extract features from the PMU and then use those features to generate identification data for use in fuzzy logic.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis and classification of disturbances in the power distribution network by phasor measurement unit based on fuzzy intelligent system

Khosravi,

Trik,

Ansari

2024

The Journal of Engineering

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The dynamic nature of distribution networks raises fresh issues with how such electrical systems function. These networks have some characteristics that indicate the need for better monitoring and control capabilities, including dispersed generation employing renewable resources, changing load profiles, and rising reliability requirements. Phasor measurement units (PMUs) offer simultaneous voltage and current phasor measurements at various places and offer a variety of options for gauging the condition and health of the power distribution network. In this regard, a cost‐optimized PMU with some unique features for distribution systems is presented in this work. These features include a fuzzy inference system to determine the root cause of potential electrical disturbances and methods to estimate electrical parameters through measured field data, which are necessities. This study takes into account the modelling of PMUs, utilizing a process for fault detection and classification with a fuzzy inference network. The 9‐bus distribution network's dependability model is built once the components and their functions are first outlined. The proposed model is then used to calculate the availability of the presented model, which has been examined to provide an analogous reliability model for PMUs. Depending on the specific manufacturer, the PMU's design and specs will change. To extract phase and size measurement features for the proposed model adaptive neural‐fuzzy inference system network's training, two PMU structures and associated reliability models are described here. When merging input data for fuzzy neural network prediction using MATLAB software, fuzzy sets are taken into account for error classification analysis.

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Section: Introductionmentioning

confidence: 99%

Diagnosis and classification of disturbances in the power distribution network by phasor measurement unit based on fuzzy intelligent system

Khosravi,

Trik,

Ansari

2024

The Journal of Engineering

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Section: Introductionmentioning

confidence: 99%

Impact of the control constraint on a buck converter design based on multi-objective optimization procedure

Larouci

Ejjabraoui

Lefranc

et al. 2012

International Journal of Power Electronics and Drive Systems (IJPEDS)

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“…As a result, more precise control can be obtained. Several control method have been proposed for DTC scheme using multilevel inverter (DTC-MLI); hysteresis-based and non-hysteresis-based such as predictive control strategy [11,15,17,18,20,22,26,27,30], space vector modulation strategy [2, 4, 8-10, 14, 21, 28, 29, 33] and fuzzy logic control strategy [3,5,7,19,31,[34][35][36].The employment of hysteresis-based control strategy in discrete implementation has led to high torque ripple even with a small hysteresis band. This is due to the delay in sampling time.…”

mentioning

confidence: 99%

Constant Frequency Torque Controller for DTC with Multilevel Inverter of Induction Machines

Nordin

Azli

Idris

et al. 2016

IJPEDS

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Direct Torque Control using multilevel inverter (DTC-MLI) with hysteresis controller suffers from high torque and flux ripple and variable switching frequency. In this paper, a constant frequency torque controller is proposed to enhance the DTC-MLI performance. The operational concepts of the constant switching frequency torque controller of a DTC-MLI system followed by the simulation results and analysis are presented. The proposed system significantly improves the DTC drive in terms of dynamic performance, smaller torque and flux ripple, and retains a constant switching frequency. Keyword:Constant INTRODUCTIONSince it has been introduced in early 1980s [1], Direct Torque Control (DTC) has gained its popularity in electrical drives research area. Recently, the application of high-power medium voltage in AC drives has shown rapid development. Thus, the use of multilevel inverters in DTC scheme has become an important structure for further development and improvement. Numerous technical papers have shown a superior performance of DTC scheme using multilevel inverters .By utilizing the multilevel inverter in DTC scheme, the choices of voltage vectors that can be used to control the torque and flux are increased. As a result, more precise control can be obtained. Several control method have been proposed for DTC scheme using multilevel inverter (DTC-MLI); hysteresis-based and non-hysteresis-based such as predictive control strategy [11,15,17,18,20,22,26,27,30], space vector modulation strategy [2, 4, 8-10, 14, 21, 28, 29, 33] and fuzzy logic control strategy [3,5,7,19,31,[34][35][36].The employment of hysteresis-based control strategy in discrete implementation has led to high torque ripple even with a small hysteresis band. This is due to the delay in sampling time. Besides that, it created a variable switching frequency of the switching devices which leads to an unpredictable harmonics current.As a result, some researchers preferred to use non-hysteresis-based control strategy. Significant improvements are accomplished in terms of flux and torque ripple and devices switching frequency. However it involves a complex mathematical equations and algorithm which has led to the complexity of the DTC-MLI scheme and high computational burden particularly when the multilevel inverter's level is increased.

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Control of variable speed drive (VSD) based on diode clamped multilevel inverter using direct torque control and fuzzy logic

Cited by 8 publications

References 4 publications

Diagnosis and classification of disturbances in the power distribution network by phasor measurement unit based on fuzzy intelligent system

Diagnosis and classification of disturbances in the power distribution network by phasor measurement unit based on fuzzy intelligent system

Impact of the control constraint on a buck converter design based on multi-objective optimization procedure

Constant Frequency Torque Controller for DTC with Multilevel Inverter of Induction Machines

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