Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW

Torrent, M. C.; Blanqué, B.

doi:10.3390/en14217130

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…For a 3-phase IM, the standard per-phase equivalent circuit is illustrated in Figure 2a. This affects the operation of the machine, as shown in [25]. In the equivalent circuit: R 1 is the stator winding resistance.…”

Section: Steady-state Equivalent Circuit Analysismentioning

confidence: 99%

Reduction of Starting Current in Large Induction Motors

Habyarimana

Dorrell

Musumpuka³

2022

Energies

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Large induction motors can have a high inrush and run-up current during starting, often up to ten times the rated current. In weak supplies, this could be a problem, causing system stability issues and the voltage to dip below acceptable levels. In islanded systems, the capacity could be pulled below its maximum. There are several different starting methods possible, but they are often only suitable for smaller machines. One method not investigated is the use of parallel capacitor compensation during the starting because large induction motors are very inductive during the starting sequence, so that supplying reactive power may be more effective than supplying energy. This paper first investigates several different induction motors with increasing size and assesses their compensation requirements in terms of the reactive power requirement during starting. It is shown that they do generally become more inductive as they increase in size. It is illustrated, using simulations, that using parallel capacitors during starting can significantly reduce the starting current. The concept is tested using a small experimental motor. Series inductors are added to the motor to make it more inductive and look more like a larger machine. The experimental results confirm that the method works. It is also found that the parallel capacitors require series filters to prevent harmonic current, and these can be realized using inductors in series with the compensation capacitors. Point-on switching using solid-state relays was tested, and these can reduce the transient switch-on current over the first voltage cycle.

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Section: Steady-state Equivalent Circuit Analysismentioning

confidence: 99%

Reduction of Starting Current in Large Induction Motors

Habyarimana

Dorrell

Musumpuka³

2022

Energies

View full text Add to dashboard Cite

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Stochastic optimization algorithms for parameter identification of three phase induction motors with experimental verification

Houili

Hammoudi

Betka

et al. 2023

2023 International Conference on Advances in Electronics, Control and Communication Systems (ICAECCS)

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Exergy Management Strategies for Hybrid Electric Ground Vehicles: A Dynamic Programming Solution

Acquarone,

Pozzato,

James

et al. 2024

Journal of Dynamic Systems, Measurement, and Control

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In this work, exergy management strategies (ExMSs) for hybrid electric ground vehicles (HEVs) are developed. The main advantage of using the exergetic framework is the possibility of pursuing unconventional optimization goals that are inaccessible to the standard energy management strategy (EMS). For instance, in military applications, the critical goal of preventing thermal imaging detection from adversary units does not seem achievable with the conventional EMS. On the other hand, the exergy-based framework can be adopted to reduce the vehicle thermal emissions through the minimization of exergy terms related to heat exchange. Moreover, the overall efficiency of the vehicle can be increased through the minimization of the exergy destruction, a quantity that is not quantifiable by energy-based methods. In this paper, the exergetic model of a series hybrid electric military truck and the exergetic model of the electric induction generator are developed and used to formulate and solve two novel exergy management strategies aiming to minimize genset exergy destruction and thermal emissions, respectively. The optimal solutions to the EMS and ExMSs control problems are obtained through Dynamic Programming over two driving missions. The results show that ExMS for the minimization of exergy destruction achieves similar results to the standard EMS, while the ExMS for the minimization of thermal emissions obtains significantly lower thermal emissions compared to the EMS, effectively reducing the thermal imaging detection risk.

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Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW

Cited by 3 publications

References 19 publications

Reduction of Starting Current in Large Induction Motors

Reduction of Starting Current in Large Induction Motors

Stochastic optimization algorithms for parameter identification of three phase induction motors with experimental verification

Exergy Management Strategies for Hybrid Electric Ground Vehicles: A Dynamic Programming Solution

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