System Modeling and Its Effect on State Estimation in Unbalanced Low Voltage Networks in the Presence of Measurement Errors

Kevin M. Banjar-Nahor, Florent Cadoux, Kalle Rauma, Nanang Hariyanto, Ngapuli Sinisuka

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

Nowadays, network operations, including in low voltage systems, are becoming more complex. There is a necessity to monitor the systems which could be realized using the data gathered by the smart meters. This monitoring task can be accomplished through state estimation analysis. It is hence necessary to study some factors that affect the state estimation analysis. In distribution system analysis, the unbalanced parameters of the feeders are mostly simplified with sequence networks. Shunt capacitances and grounding methods are commonly neglected. Furthermore, errors and uncertainty in measurements and power system parameters may exist. Such simplifications and imperfections are likely to affect the results of the analysis. This work covers the abovementioned issues and assesses their impact to estimation results. An AC state estimation algorithm was created in AMPL. Extensive simulations have uncovered some findings in order to obtain satisfactory state estimation in low voltage networks.

Original languageEnglish
Title of host publicationProceedings of the 2nd International Conference on High Voltage Engineering and Power Systems
Subtitle of host publicationTowards Sustainable and Reliable Power Delivery, ICHVEPS 2019
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)978-1-7281-2669-2
ISBN (Print)978-1-7281-2670-8
DOIs
Publication statusPublished - Oct 2019
MoE publication typeA4 Article in a conference publication
Event2nd International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2019 - Denpasar, Bali, Indonesia
Duration: 1 Oct 20194 Oct 2019

Conference

Conference2nd International Conference on High Voltage Engineering and Power Systems, ICHVEPS 2019
Country/TerritoryIndonesia
CityDenpasar, Bali
Period1/10/194/10/19

Keywords

  • low voltage
  • modeling
  • parameter
  • state estimation

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