A Five-Level Torque Controller Based DTC Scheme for Open-End Winding Five-Phase IM Drives With Single DC Source and Auxiliary Plane Harmonic Elimination

Mavila, Prasoon Chandran; Rajeevan, Rajeevan

doi:10.1109/tia.2022.3140361

Cited by 10 publications

(18 citation statements)

References 31 publications

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“…The classic DTC [31] in dual inverter-fed FPOEWIM uses a 3-level torque hysteresis controller with large (VL) vectors only, which yields high torque ripple and flux ripples and current harmonic distortion. A 5-level DTC is introduced with 20 VVVs (both large VL, and medium VM) for a fivephase dual inverter configuration [33] and still, it exhibits high harmonic current distortion and torque ripple. The proposed works in [31] and [33] also under-utilizes the switching states combinations of DI.…”

Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

“…A 5-level DTC is introduced with 20 VVVs (both large VL, and medium VM) for a fivephase dual inverter configuration [33] and still, it exhibits high harmonic current distortion and torque ripple. The proposed works in [31] and [33] also under-utilizes the switching states combinations of DI. The 7-level torque hysteresis controller is introduced to complete utilization 30 voltage vectors in the proposed DTC method's lookup table I during high speeds (speed > 300 rpm), which assists in reduced torque and flux ripple.…”

Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

“…Small voltage vectors are applied at low speeds (speed ≤ 300 rpm) with a separate 3level torque hysteresis controller and 3-level lookup table II, which results in further decreased torque ripple and flux ripple. The 3-level DTC [31], 5-level DTC [33], and proposed DTC scheme are compared with the same torque hysteresis controller band of 0.3 Nm (10% of rated torque) and same flux hysteresis controller band of 0.005Wb (4% of rated flux) with sample time 100e-6 sec.…”

Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

“…A new 5-level torque controller is introduced in DTC of dual inverter fed FPOEWIM with 20 VVV to reduce flux ripple torque ripple and current THD [32] and still, it exhibits high torque-flux ripple, and current distortion and does not eliminate harmonic plane components. In [33], the author extended the work done in [32] by eliminating harmonic plane components in a dual inverter-controlled 5-phase induction motor. The work presented in [34] introduces a 7level Direct Torque Control (DTC) of a dual inverter-fed FPOEWIM that primarily focuses on simulation results with 30 virtual voltage vector combinations with limited explanation, and not discussed motor dynamics.…”

Section: Introductionmentioning

confidence: 99%

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An Isolation Transformer-less Single DC Source fed Dual 5-leg Inverter Controlled 5-Phase Induction Motor with Modified Direct Torque Control

Reddy Chagam,

Devabhaktuni

2024

IEEE Latin Am. Trans.

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A modified hysteresis torque controller is introduced into the direct torque control scheme of a 5-phase open-end winding induction motor, aimed at enhancing steadystate performance by minimizing torque, flux ripple, and current total harmonic distortion (%THD) with the dual 5-leg inverter configuration. The proposed Direct Torque Control (DTC) strategy utilizes a common DC source for both converters without the need for a bulky isolation transformer, accomplished by nullifying common mode voltage in the dual inverter open-end winding configuration. This proposed technique employs 30 virtual voltage vectors (VVVs) generated from the dual inverter configuration, strategically categorized as small, large, and medium voltage vectors. These 30 VVVs are instrumental in forming a 7-level torque controller and a 3-level torque controller in the proposed DTC scheme. In contrast to the existing DTC method, which uses 20 virtual voltage vectors from a dual 5-leg inverter configuration and grapples with challenges like high current harmonic distortion, torque ripple, and flux ripple, the proposed control scheme introduces a new 7-level torque hysteresis controller. The outcome is reduced torque and flux ripple, along with minimized harmonic content across various speeds and loading conditions without disturbing the dynamics. Experimental hardware results are scrutinized, comparing the classical DTC with the proposed DTC schemes in open-end winding induction motors, aiming to know the superior qualities of the proposed control approach. Link to graphical and video abstracts, and to code: https://latamt.ieeer9.org/index.php/transactions/article/view/84 74 Index Terms-Direct Torque Control, dual 5-leg inverter, flux ripple, torque ripple, current %THD, 5-phase open-end winding induction motor I.Recent research focuses on using multi-level inverters (MLI) for high/medium power industrial motors. These inverters offer advantages like fault tolerance, redundant switching states, modularity, and reduced torque and flux

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Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

Section: B Vectors Formation In Dual Inverter Fed Fpoewimmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Isolation Transformer-less Single DC Source fed Dual 5-leg Inverter Controlled 5-Phase Induction Motor with Modified Direct Torque Control

Reddy Chagam,

Devabhaktuni

2024

IEEE Latin Am. Trans.

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show abstract

“…This stabilizing input voltage of the inverter can provide fewer harmonics to the motor, which can improve the lifetime of the motor as compared to high harmonics which improves the reliability [11,12] and continuous availability of power supply of the drive. The problem of long-term interruptions in the power supply is addressed by integrating renewable energy sources (RES) with the DC-link [13,14]. The Photovoltaic (PV) generation method, which converts free solar energy into usable electricity through the photovoltaic effect, is one of the most widely utilized RES.…”

Section: Introductionmentioning

confidence: 99%

TS fuzzy control of PV assisted single phase three phase induction motor drive for rural pumping applications

Rami Reddy,

Mudundi,

Kumar

et al. 2024

TESEA

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The motor drives for aqua farms and large-scale irrigation system needs a reliable electric drive, which requires the continuous power supply and efficient control. However, the rural single phase power supply is frequently interrupted. Renewable assistance would improve the availability of supply and heuristic control approach improves robustness in control. This paper presents a three phase induction motor drive fed from single phase electric grid with assistance from PV and battery energy storage. TS- fuzzy based direct torque control is employed for robust control during load changes, and the topology, component modelling, front-end converter control, PV interface DC–DC converter control, and inverter control are presented. MATLAB/Simulink is used to simulate the proposed drive system. The performance of the proposed system is validated using simulation data for both steady-state and transient states.

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A new space vector PWM techniques control for nine-leg inverters: analysis and FPGA implementation

Guenenna

Khedher²

2022

Electr Eng

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A Five-Level Torque Controller Based DTC Scheme for Open-End Winding Five-Phase IM Drives With Single DC Source and Auxiliary Plane Harmonic Elimination

Cited by 10 publications

References 31 publications

An Isolation Transformer-less Single DC Source fed Dual 5-leg Inverter Controlled 5-Phase Induction Motor with Modified Direct Torque Control

An Isolation Transformer-less Single DC Source fed Dual 5-leg Inverter Controlled 5-Phase Induction Motor with Modified Direct Torque Control

TS fuzzy control of PV assisted single phase three phase induction motor drive for rural pumping applications

A new space vector PWM techniques control for nine-leg inverters: analysis and FPGA implementation

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