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A coordinated voltage control strategy for on-load tap changing transformers with the utilisation of distributed generators

Christof Deckmyn (UGent) , Tine Vandoorn (UGent) , Bart Meersman (UGent) , Louis Gevaert (UGent) , Jan Desmet (UGent) and Lieven Vandevelde (UGent)
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Abstract
The increased deployment of Distributed Energy Resources (DER) and their connection to the existing distribution networks influences the feeder voltage profiles and challenges the voltage control in distribution networks. Traditionally, On- Load Tap Changing (OLTC) transformers are the most common voltage control devices. In this paper, the problem of voltage rise mitigation in distribution networks with high penetration of Distributed Generation (DG) will be addressed. Electronic on-load tap changers are an expensive alternative to the mechanical devices, but the grid conditions of today may justify their use. An area-based control strategy for an on-load tap changer, based on measurements from different locations in the distribution network, is proposed and tested on a feeder model. The method uses the voltage information of remote measurement points and determines the optimal tap position in order to minimise the voltage deviation. The control strategy proposed in this paper makes use of a heuristics-based optimisation methodology which is able to handle the discrete decision variables of the tap changer. The studied system includes three-phase voltage data obtained by measurements from three different locations in an existing network. The results demonstrate that the area-based control strategy is able to mitigate the voltage deviation in every line of the network. Additional simulations were done for an OLTC were the tap positions are treated as a continuous variable.
Keywords
Genetic algorithms, Voltage control, Microgrids, Distributed power generation, Substation automation, DISTRIBUTION NETWORKS, REACTIVE POWER, RISE MITIGATION, SMART GRIDS, INTEGRATION, ALGORITHMS, OPTIMIZATION, PENETRATION

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Chicago
Deckmyn, Christof, Tine Vandoorn, Bart Meersman, Louis Gevaert, Jan Desmet, and Lieven Vandevelde. 2016. “A Coordinated Voltage Control Strategy for On-load Tap Changing Transformers with the Utilisation of Distributed Generators.” In Proceedings of the IEEE International Energy Conference (Energycon 2016), 1–6. Leuven: IEEE.
APA
Deckmyn, C., Vandoorn, T., Meersman, B., Gevaert, L., Desmet, J., & Vandevelde, L. (2016). A coordinated voltage control strategy for on-load tap changing transformers with the utilisation of distributed generators. Proceedings of the IEEE International Energy Conference (Energycon 2016) (pp. 1–6). Presented at the IEEE International Energy Conference (ENERGYCON), Leuven: IEEE.
Vancouver
1.
Deckmyn C, Vandoorn T, Meersman B, Gevaert L, Desmet J, Vandevelde L. A coordinated voltage control strategy for on-load tap changing transformers with the utilisation of distributed generators. Proceedings of the IEEE International Energy Conference (Energycon 2016). Leuven: IEEE; 2016. p. 1–6.
MLA
Deckmyn, Christof, Tine Vandoorn, Bart Meersman, et al. “A Coordinated Voltage Control Strategy for On-load Tap Changing Transformers with the Utilisation of Distributed Generators.” Proceedings of the IEEE International Energy Conference (Energycon 2016). Leuven: IEEE, 2016. 1–6. Print.
@inproceedings{7178198,
  abstract     = {The increased deployment of Distributed Energy Resources (DER) and their connection to the existing distribution networks influences the feeder voltage profiles and challenges the voltage control in distribution networks. Traditionally, On- Load Tap Changing (OLTC) transformers are the most common voltage control devices. In this paper, the problem of voltage rise mitigation in distribution networks with high penetration of Distributed Generation (DG) will be addressed. Electronic  on-load tap changers are an expensive alternative to the mechanical devices, but the grid conditions of today may justify their use. An area-based control strategy for an on-load tap changer, based on measurements from different locations in the distribution network, is proposed and tested on a feeder model. The method uses the voltage information of remote measurement points and determines the optimal tap position in order to minimise the voltage deviation. The control strategy proposed in this paper makes use of a heuristics-based optimisation methodology which is able to handle the discrete decision variables of the tap changer. The studied system includes three-phase voltage data obtained by measurements from three different locations in an existing network. The results demonstrate that the area-based control strategy is able to mitigate the voltage deviation in every line of the network. Additional simulations were done for an OLTC were the tap positions are treated as a continuous variable.},
  author       = {Deckmyn, Christof and Vandoorn, Tine and Meersman, Bart and Gevaert, Louis and Desmet, Jan and Vandevelde, Lieven},
  booktitle    = {Proceedings of the IEEE International Energy Conference (Energycon 2016)},
  isbn         = {978-1-4673-8463-6},
  issn         = {2164-4322 },
  keyword      = {Genetic algorithms,Voltage control,Microgrids,Distributed power generation,Substation automation,DISTRIBUTION NETWORKS,REACTIVE POWER,RISE MITIGATION,SMART GRIDS,INTEGRATION,ALGORITHMS,OPTIMIZATION,PENETRATION},
  language     = {eng},
  location     = {Leuven},
  pages        = {1--6},
  publisher    = {IEEE},
  title        = {A coordinated voltage control strategy for on-load tap changing transformers with the utilisation of distributed generators},
  url          = {http://dx.doi.org/10.1109/ENERGYCON.2016.7514093},
  year         = {2016},
}

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