Enhanced DTC induction motor drives for THD minimization performance improvement with multilevel inverter

Chien, Siong Kai; Sim, Sy Yi; Utomo, Wahyu Mulyo; Kek, Sie Long; Mustafa, Farahiyah; Zambri, Nor Aira; Siang, Alvin John Lim Meng; Sim, G.Y.

doi:10.11591/ijpeds.v13.i1.pp93-101

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…where L , and Lr are the self-inductance of the stator and rotor, respectively, and the magnetizing inductance is Lm. Also, the self-inductance can be written as ( 9), (10).…”

Section: Methodsmentioning

confidence: 99%

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Reducing torque ripple of induction motor control via direct torque control

Azze

Hameed

2023

IJECE

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<span lang="EN-US">The induction motor is extremely well known and used as an alternating current (AC) machine. Therefore, torque and speed regulations are very essential for this type of machine. This paper presents direct torque control (DTC) based on induction motors (IM). The mathematical model of IM is reported, and the machine is modeled in a synchronous coordinate farm. Classic DTC is applied to IM with two bandwidths of hysteresis controller for electromagnetic torque and stator flux. The system is simulated and investigated via MATLAB/Simulink and the results carry out a high ripple on the torque. There are numerous of improving torque response, one of them is adding a new loop for speed with proportional, integral, and derivative (PID) controllers. IM model with PID based on DTC is simulated through MATLAB. A contrast performance of IM is presented between traditional DTC and DTC with PID. As result, the new DTC with PID carries out improvement in the speed response as well reduces the ripples of torque.</span>

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“…where L , and Lr are the self-inductance of the stator and rotor, respectively, and the magnetizing inductance is Lm. Also, the self-inductance can be written as ( 9), (10).…”

Section: Methodsmentioning

confidence: 99%

“…𝐿 𝑟 = 𝐿 𝑙𝑟 + 𝐿 𝑚 (10) The develop electromagnetic torque and speed of rotor are given by ( 11)-( 13),…”

Section: Methodsmentioning

confidence: 99%

Reducing torque ripple of induction motor control via direct torque control

Azze

Hameed

2023

IJECE

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“…Furthermore, it is discovered that adding a multilevel inverter to a DTC-based control system lowers distortion in current [8]- [10]. Researchers have looked into a number of multilevel inverter topologies, including Neutral-Point Clamped (NPC) and Cascaded H-Bridge inverters.…”

Section: Introductionmentioning

confidence: 99%

A Novel Sliding Hysteresis Band Based Direct Torque Control Scheme for PMSM Motors to Achieve Improved Current THD With Reduction in Torque and Flux Ripples Eliminating the Low-Speed Problems

Mohan,

Khalid,

Binojkumar

2024

IEEE Access

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The performance of Direct Torque Controlled (DTC) Permanent Magnet Synchronous Motor (PMSM) is severely hampered by high Total Harmonic Distortion (THD) in motor current, especially under low-speed operations. Current THD problems show up as torque ripple, elevated losses, temperature rise, low power factor, and shorter motor lifetime. In DTC, the effects of high THD are magnified, necessitating an indepth study of the challenges and its mitigating techniques. In this paper, novel sliding bands are proposed for torque and flux hysteresis controllers to improve the current THD with a special focus on low-speed region. The proposed DTC schemes offer smooth low-speed operation with only a marginal increase in switching frequency. Even though the low-speed region is the targeted operating region, a significant THD reduction is seen over the whole operating region, with the added benefit of torque ripple and flux ripple reduction. The effectiveness of the proposed scheme is analytically and experimentally verified on a 1.07 kW PMSM drive. The proposed schemes exhibit better performance in comparison with the conventional methods, especially under low-speed regions, and significantly improves the low-speed performance.

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“…This will result in reduction in motor losses, improvement of motor performance and achievement of high motor efficiency [6,17]. The authors in [18] presented a DTC IM drive system for THD minimization applying MLI. However, the values of THD are significantly high at medium and low speeds.…”

Section: Introductionmentioning

confidence: 99%

Multi-Level Inverter Fed Induction Motors Based on Simplified and Efficient Modulation Techniques

Hendawi

2023

IJEETC

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Speed control of three phase and single phase induction motors represents a very important issue in residential and industrial applications. This paper presents a voltage to frequency speed control of both single phase and three phase induction motors derived by multi-level inverters (MLIs). 15-level and 31-level multi-level inverters are considered. Both MLIs are operated by applying two proposed simplified and efficient modulation techniques in addition to the application of conventional multicarrier sinusoidal pulse width modulation technique MC-SPWM. The proposed modulation techniques overcome several difficulties related to MC-SPWM. The scaler voltage to frequency control method operates very well during starting along with step changes in motor speeds. Simulation results verify the high performance of the proposed modulation techniques when controlling both induction motors based on 15-level and 31-level MLIs.

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Enhanced DTC induction motor drives for THD minimization performance improvement with multilevel inverter

Cited by 3 publications

References 18 publications

Reducing torque ripple of induction motor control via direct torque control

Reducing torque ripple of induction motor control via direct torque control

A Novel Sliding Hysteresis Band Based Direct Torque Control Scheme for PMSM Motors to Achieve Improved Current THD With Reduction in Torque and Flux Ripples Eliminating the Low-Speed Problems

Multi-Level Inverter Fed Induction Motors Based on Simplified and Efficient Modulation Techniques

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