Assessment of the impacts of voltage dips for a MV customer

Bhattacharyya, S.; Cobben, J.F.G.; Kling, W.L.

doi:10.1109/ichqp.2010.5625396

Cited by 10 publications

(4 citation statements)

References 3 publications

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“…The Dutch MV network entirely uses underground cables [6] and faults are mainly due to ground digging and aging effects of the network components. The use of underground and relatively short cables in the Dutch network attributes to much lower failure frequency of network components than in most other European networks.…”

Section: Case Studymentioning

confidence: 99%

“…In the computer simulations, short-circuit faults are applied on the cables and terminals of the MV network. The average failure rates of cables and terminals used in the simulations are 0.0243/km/year and 0.012/year [6], [7] respectively. Fault types-type I, type II and type III [6], [8], which occur commonly in the MV network, are used in the simulation with distribution frequencies of 50%, 25% and 25% respectively.…”

Section: Case Studymentioning

confidence: 99%

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Monitoring of dips in the MV network for regulation- A case study

Weldemariam

Ćuk

Cobben

et al. 2014

2014 16th International Conference on Harmonics and Quality of Power (ICHQP)

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Voltage dips constitute to a noticeable part of power quality (PQ) problems but causing major financial losses to industrial and commercial customers. This work involves comparative studies to choose the most appropriate location of monitoring dips for regulation. In this paper, a Dutch MV network is used and dip monitoring locations are considered at different points of connections (POC) where customers are connected. To estimate the number of dips per year, simulations are performed on the network using PowerFactory. The voltage dip profiles at the selected monitoring point are analyzed for phase and line voltage dips. The effects of distributed generation (DG) on the voltage dips are also observed and the transfer of voltage dips from MV to LV network is briefly discussed. To analyze the effects of the expected dips on industrial equipment, severity curves are applied onto the standard dip tables.

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Section: Case Studymentioning

confidence: 99%

Section: Case Studymentioning

confidence: 99%

Monitoring of dips in the MV network for regulation- A case study

Weldemariam

Ćuk

Cobben

et al. 2014

2014 16th International Conference on Harmonics and Quality of Power (ICHQP)

Self Cite

View full text Add to dashboard Cite

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“…During the assessment of process trip is important to know how different short-circuits affect distribution networks and its customers [7][8] [9]. Short-circuits are random phenomena which constantly affect distribution networks.…”

Section: Assessment Of Annual Process Trip Probabilitymentioning

confidence: 99%

Applying process immunity time to assess annual industrial process trips

Cebrian

Kagan

Milanović

2014

2014 IEEE PES General Meeting | Conference &Amp; Exposition

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the effect of voltage sag to customer's process has been studied by different authors. They propose methods in order to assess annual indices related to process trip due to sags and long duration interruptions (LDI). However, these methods don't consider the process immunity time (PIT) during the estimation of these indices. This paper introduces a procedure where PIT is included in order to increase the accuracy of annual indices. The procedure is applied to a representative distribution network. The results show that (i) the difference, between the values obtained considering PIT or not, is approx. on average 50% and (ii) only 6% the total of event between sag and LDI affects the customer's process.Index Terms-process immunity time, power quality, voltage sags, reliability.

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“…The voltage dips have attracted a lot of interest due to the potential negative impact on the equipment of the customers connected to the network causing significant financial losses and technical inconveniences [3], [4]. The modern equipment that is connected to the network is more sensitive to power quality disturbances [4] and the customers are more interested in high quality of supply, as their processes are directly affected by the disturbances in the network. Additionally, there is a growing interest to standardize the several PQ phenomena and define the performance criteria.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Voltage Dips based on Field Measurements in MV Networks

Weldemariam

Papathanasiou²,

Ćuk³

et al. 2024

RE&PQJ

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Voltage dip is considered as the PQ problem related to the highest financial losses for the customers. It occurs unpredictably mainly due to short-circuit faults in the networks. Network operators and customers want to know more about the occurrence and the potential impact of voltage dips. PQ monitoring is an essential tool for the assessment of voltage dips and it can ultimately contribute to the regulation of voltage dip events. In this paper, firstly the methods of voltage monitoring and voltage dips characterization are discussed. Voltage dip indices of six substations are presented in order to assess the occurrence, type and severity of dips that occur in typical Dutch MV networks. Finally, an approach, which is based on the disrupted loads because of a voltage dip event, is introduced and applied to the data at one substation in order to assess the quality of supply voltage and its implications for the end-users. Index Terms-assessment of voltage dips, dip monitoring, reporting dips, transfer of dips, voltages dip indices

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Assessment of the impacts of voltage dips for a MV customer

Cited by 10 publications

References 3 publications

Monitoring of dips in the MV network for regulation- A case study

Monitoring of dips in the MV network for regulation- A case study

Applying process immunity time to assess annual industrial process trips

Assessment of Voltage Dips based on Field Measurements in MV Networks

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