Impact of load modeling on the harmonic impedance seen from the transmission network

Barakou, F.; Bollen, Math; Mousavi-Gargari, S.; Lennerhag, Oscar; Wouters, P.A.A.F.; Steennis, E.F.

doi:10.1109/ichqp.2016.7783466

Cited by 11 publications

(2 citation statements)

References 7 publications

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“…In [17], the impact of different components in the downstream network on the harmonic impedance as seen from the high voltage side of a 220/70 kV transformer is investigated. It was found that the 70 kV cables were the dominating factor with regards to the harmonic impedance, but also that the increasing use of capacitors in LV equipment may have an impact, and should therefore be considered.…”

Section: Changes In Load Compositionmentioning

confidence: 99%

Power system impacts of decreasing resonance frequencies

Lennerhag¹,

Bollen

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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As the energy system is transitioning to a more sustainable one several of the related changes will affect the power system in different ways. Renewable electricity sources, energy efficiency measures and increased operational flexibility lead to more serious resonances in the electricity network and an increased uncertainty in terms of frequency and damping of those resonances. This could have a large impact on the spread of harmonics and on temporary overvoltages. In this paper, some examples of changes in the grid are presented and their impact on the spread of harmonics and temporary overvoltages, as a consequence of changes in resonances, is discussed.

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Section: Changes In Load Compositionmentioning

confidence: 99%

Power system impacts of decreasing resonance frequencies

Lennerhag¹,

Bollen

2018

2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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show abstract

“…To reproduce the harmonic resonance observed in a real LV network by simulation, another, more advanced approach for an admittance model of households is proposed in [6]. Eventually, as shown in [14, 15], accurate admittance modelling is also important with regard to the aggregated impedance of the LV network as seen from the upstream network, e.g. for harmonic studies in MV networks.…”

Section: Introductionmentioning

confidence: 99%