A single-phase cable model based on lumped-parameters for transient calculations in the time domain

Hoshmeh, Abdullah; Malekian, Kaveh; Schuftt, Wolfgang; Schmidt, Uwe

doi:10.1109/eeeic.2015.7165255

Cited by 7 publications

(10 citation statements)

References 9 publications

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“…This method of fitting has been shown to be accurate, robust, and efficient. The authors of [26,33] use VF to fit longitudinal parameters for the single-line case. The longitudinal impedance Z(ω) can be represented as follows:…”

Section: Vector Fittingmentioning

confidence: 99%

Electric drive systems with long feeder cables

Xie

Vakil

Gerada

2019

IET Electric Power Applications

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Electric drive systems with long feeder cables connecting inverter and machine are used for oil exploration, mining, remote operated vehicles, industrial, and aerospace applications. Though this topology has the advantage of providing a better operating environment and easier serviceability for the inverter if the machine is located in an inhospitable and inaccessible environment, it does come with its own drawbacks. Steep-fronted switched voltages and cable-machine surge impedance mismatch can lead to high-amplitude, high-frequency (HF) voltage oscillations along the feeder cable, at the machine terminals, and throughout the machine's stator windings. These effects can cause high-electromagnetic interference, corona discharge, insulation failure in the feeder cable and machine's stator windings, common-mode, differential-mode, and bearing currents. This study discusses the HF issues relating to electric drive systems with long cable feeders. HF models for feeder cable and machine to analyse these phenomena are presented. The effects on long feeder cable loading on inverter switching characteristics are discussed. Methods to mitigate high-amplitude and HF oscillations in such systems are shown.

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Section: Vector Fittingmentioning

confidence: 99%

Electric drive systems with long feeder cables

Xie

Vakil

Gerada

2019

IET Electric Power Applications

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“…The elements of section I can be evaluated in a similar way as in Hoshmeh et al [21]. The elements of section II are obtained as follows:…”

Section: Approachmentioning

confidence: 99%

“…In order to execute the time domain simulations, the differential equations for single conductors in the developed cable model have to be formulated. As shown in Hoshmeh et al [21], the differential equations can be represented using state space techniques. A numerical backward Euler rule of integration can then be applied to find the solution for the related state space equations of Meyer and Dommel [44].…”

Section: Approachmentioning

confidence: 99%

“…In Hoshmeh et al [21], an RL network has been used. Using such a network allows us to employ only the real poles and residues in the approximation (the complex terms are discarded).…”

Section: Approachmentioning

confidence: 99%

“…Therefore, the results of this model will only be valid for steady state simulations. For simulations of transients, the traditional PI section model has to be further developed [21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Full Frequency-Dependent Cable Model for the Calculation of Fast Transients

Hoshmeh

Schmidt

2017

Energies

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Abstract:The calculation of frequency-dependent cable parameters is essential for simulations of transient phenomena in electrical power systems. The simulation of transients is more complicated than the calculation of currents and voltages in the nominal frequency range. The model has to represent the frequency dependency and the wave propagation behavior of cable lines. The introduced model combines an improved subconductor method for the determination of the frequency-dependent parameters and a PI section wave propagation model. The subconductor method considers the skin and proximity effect in all conductors for frequency ranges up to few megahertz. The subconductor method method yields accurate results. The wave propagation part of the cable model is based on a cascaded PI section model. A modal transformation technique has been used for the calculation in the time domain. The frequency-dependent elements of the related modal transformation matrices have been fitted with rational functions. The frequency dependence of cable parameters has been reproduced using a vector fitting algorithm and has been implemented into an resistor-inductor-capacitor network (RLC network) for each PI section. The proposed full model has been validated with measured data.

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A three-phase cable model based on lumped parameters for transient calculations in the time domain

Hoshmeh

2016

2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia)

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A single-phase cable model based on lumped-parameters for transient calculations in the time domain

Cited by 7 publications

References 9 publications

Electric drive systems with long feeder cables

Electric drive systems with long feeder cables

A Full Frequency-Dependent Cable Model for the Calculation of Fast Transients

A three-phase cable model based on lumped parameters for transient calculations in the time domain

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