Transient Torque Peak Reduction During DOL Starting of Three-Phase Induction Motors Using Zero-Crossing Switching Approach

Aree, Pichai

doi:10.1109/tec.2020.3019606

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…These may damage the motor windings and adversely affects the mechanical parts of the machine. Recent researches [13][14][15] proposed adding a parallel RC circuit in the stator circuit at starting and until reaching the steady state. However, the added capacitor, if not accurately designed, may lead to spikes due to charging and discharging cycles.…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Starting Transients in Slip-Energy Recovery Drives

Amer

Eskander

2022

Int. Res. J. multidiscip. Technovation

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Starting voltage and current transients in slip energy recovery drives (SERD) may damage the stator and rotor windings. The resulting torque oscillations damage the induction machine mechanical parts. In this paper three schemes for damping starting transients and torque oscillations are proposed. In the first scheme a parallel RL impedance is connected between the supply and the stator coils, in the second scheme a parallel RL impedance is added in the rotor circuit, and in the third scheme the two impedances are connected simultaneously. Transient performance is simulated and the results of the three schemes are compared. Also, the effect of each proposed scheme on the steady state values of the SERD currents, voltages, and electric torque is studied and demonstrated. Lower current and voltage transients, and lower torque oscillations resulted in all schemes, with optimum transient performance observed when adding the two impedances simultaneously.

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Section: Introductionmentioning

confidence: 99%

Mitigation of Starting Transients in Slip-Energy Recovery Drives

Amer

Eskander

2022

Int. Res. J. multidiscip. Technovation

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“…Third, CVRST can be determined using an analytical solution of the speed-time characteristics curve. These approaches are beneficial as they give simple expressions [13,23], and can be calculated using different program packages (such as Matlab, Maple, and others).…”

Section: Introductionmentioning

confidence: 99%

A Novel Exact Analytical Solution Based on Kloss Equation towards Accurate Speed-Time Characteristics Modeling of Induction Machines during No-Load Direct Startups

et al. 2021

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The acceleration time of induction machines (IMs) is essential for proper protection-relay settings of the machine to prevent voltage sags in local power areas. In this paper, mathematical modeling of IMs’ speed-time characteristics during no-load direct startup has been presented. Unlike the approaches presented in the literature, the proposed approach includes the bearing losses, in which two expressions of the speed-time characteristics of IMs during no-load direct startup are derived. The first expression was derived based on the Kloss equation used for representing the torque, and the second expression was derived based on the torque expression determined from the Thevenin equivalent circuit of the machine. The derived expressions’ accuracy was validated using laboratory measurement and computer simulation approaches. The results obtained show a good agreement between the measured and simulated speed-time characteristics of two IMs. Finally, the proposed formulations can provide a simple analytical base to enable accurate IM modeling.

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Transient Torque Peak Reduction During DOL Starting of Three-Phase Induction Motors Using Zero-Crossing Switching Approach

Cited by 2 publications

References 17 publications

Mitigation of Starting Transients in Slip-Energy Recovery Drives

Mitigation of Starting Transients in Slip-Energy Recovery Drives

A Novel Exact Analytical Solution Based on Kloss Equation towards Accurate Speed-Time Characteristics Modeling of Induction Machines during No-Load Direct Startups

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