An Effective Four-Level Voltage Switching State Algorithm for Direct Torque Controlled Open End Winding Induction Motor Drive by Using Two Two-Level Inverters

Kumar, K. Vijay; Kumar, Thippiripati Vinay

doi:10.1080/15325008.2017.1405104

Cited by 4 publications

(7 citation statements)

References 16 publications

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“…The parameters used for simulation and experimentation are shown in Table 7. The effectiveness of proposed algorithms (DTC‐II, DTC‐III, PTC‐II and PTC‐III) is verified by comparing the simulated and experimental results with DTC‐I, PTC‐I and other control strategies [24, 32, 34].…”

Section: Simulation and Experimental Resultsmentioning

confidence: 98%

“…By neglecting null vector in DTC [24] torque ripple, flux ripple and distortions in current increase. DTC algorithm used in [32] utilises modified switching state tables for its operation; therefore, it gives less ripples in torque and flux when compared with DTC‐I. Torque ripple and flux ripples are measured by taking sum of the difference between measured and reference values of torque and flux over 1,25,000 samples.…”

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

“…Elimination/reduction of CMV for open‐loop configuration of OEWIM configuration was reported [25–28]. DTC and PTC strategies to an OEWIM drive with two‐level and more than two‐level inversion schemes are reported [29–37]. DTC of OEWIM drive with two‐level inversion was reported [29].…”

Section: Introductionmentioning

confidence: 99%

“…Five‐level inversion‐based space vector modulated DTC strategy introduced for an OEWIM drive [31]. In [32, 33], effective voltage switching state algorithms introduced to an OEWIM drive for three‐level and four‐level inversion, the modified look‐up tables utilises rotor speed. PTC of OEWIM drive with equal and unequal DC‐link voltages are reported in [34–37].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhanced direct torque control and predictive torque control strategies of an open‐End winding induction motor drive to eliminate common‐mode voltage and weighting factors

Kumar

2019

IET Power Electronics

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Direct torque control (DTC) and predictive torque control (PTC) strategies emerged as powerful tools for speed control of variable frequency drives (VFD). The limitations in classical DTC and PTC are: higher ripple in torque, flux, variable switching frequency, and higher common-mode voltage (CMV). High dv/dt and CMV results in shaft voltages, bearing currents, malfunction of power electronic devices and electromagnetic interference (EMI). To eliminate the CMVs and also to reduce the switching frequency, voltage vector selection-based DTC and PTC strategies are introduced to an open-end winding induction motor (OEWIM) drive. Another limitation of classical PTC is cumbersome tuning of weighting factors. To address this limitation, modified cost function-based PTC strategy has been developed to eliminate weighting factors. OEWIM drive operates with dual inverter configuration and the two inverters are operated with equal DC-link voltages; therefore, it delivers three-level output voltage. This article introduces various DTC and PTC strategies to an OEWIM drive to reduce torque, flux ripples, switching frequency, elimination of CMV, and weighting factors. The effectiveness of proposed DTC and PTC strategies is tested by dspace-1104 real-time interface controller and comparing the obtained results with classical DTC and PTC.

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Section: Simulation and Experimental Resultsmentioning

confidence: 98%

Section: Simulation and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced direct torque control and predictive torque control strategies of an open‐End winding induction motor drive to eliminate common‐mode voltage and weighting factors

Kumar

2019

IET Power Electronics

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“…These six active voltage vectors may pronounce zero common‐mode voltages but highly increases the torque and flux ripples of the motor drive. In [38–40], three‐level DTC methods were presented for the isolated DC bus of OEW‐IM. In [38], the voltage switching vector tables are designed based on the speed condition of the motor.…”

Section: Introductionmentioning

confidence: 99%

Reduction of torque and flux ripples in direct torque control for three‐level open‐end winding PMSM drive

Eshwar

Kumar

2020

IET Electric Power Applications

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The direct torque control (DTC) of permanent magnet synchronous motor (PMSM) drives is a noticeable practice in industrial applications due to its quick dynamic performance. However, due to the presence of hysteresis controllers and inaccurate switching tables especially for the multilevel fed DTC drives are facing higher ripples in torque and flux response. An improved DTC for three-level open-end winding PMSM drive is proposed in this article and features reduction of flux and torque ripples. The torque and flux performances of the PMSM are directly controlled by the calculated reference voltage vector in the stationary reference frame. The voltage vector tables are proposed based on the length of the voltage space vectors and the actual voltage vector nearer to the calculated reference voltage vector is selected so that the minimum ripples exist in flux and torque responses. The steady-state and dynamic conditions of the proposed DTC method are verified in the real-time experiment and also compared with the conventional DTC as well as the recently developed control methods.

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Intelligent control of induction motor for photovoltaic water pumping system

Errouha¹,

Motahhir²,

Combe

et al. 2021

SN Appl. Sci.

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This work aims to improve the performance of direct torque control (DTC) technique for induction motor based photovoltaic (PV) water pumping system (PVWPS). The innovative aspect of this work consists in introducing the adaptive fuzzy logic control and the fuzzy logic control techniques as alternative approaches to conventional DTC to control the PVWPS. To ensure a good operation of the PV array, a variable step size incremental conductance (VSS INC) is implemented. Simulation studies of the proposed topology based on intelligent approaches will be investigated using Matlab/Simulink under various operating conditions to validate the suitability of the proposed PVWPS. From the obtained results, the proposed control strategies appear to be very convenient for water pumping applications. Article Highlights• An intelligent control based on the advanced techniques is proposed for PV water pumping system. • An adaptive fuzzy logic PID approach and optimal fuzzy rules are proposed for better operation of PV system.• The suggested PV water pumping system achieves better performance, in particular minimization of torque and flux ripples, reduction of torque overshoot and high dynamic response.

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An Effective Four-Level Voltage Switching State Algorithm for Direct Torque Controlled Open End Winding Induction Motor Drive by Using Two Two-Level Inverters

Cited by 4 publications

References 16 publications

Enhanced direct torque control and predictive torque control strategies of an open‐End winding induction motor drive to eliminate common‐mode voltage and weighting factors

Enhanced direct torque control and predictive torque control strategies of an open‐End winding induction motor drive to eliminate common‐mode voltage and weighting factors

Reduction of torque and flux ripples in direct torque control for three‐level open‐end winding PMSM drive

Intelligent control of induction motor for photovoltaic water pumping system

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