Energy curtailment analysis of offshore wind farms with DC series-parallel collection systems

Jingli Guo, Xiuli Wang, Zece Zhang, Hui Li, Padmavathi Lakshmanan, Jun Liang

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

Voltage balancing among the series connected wind turbines is one of the main technical challenges of offshore wind farms with DC series-parallel collection systems. Due to wake effect considerations, the power generated among the series connected wind turbines does not remain the same and the series connection causes the output voltages of the turbines to be distributed in proportion to their power output. Power curtailment is required in order to prevent the turbines being subjected to over-voltage and under-voltage conditions. In this paper, a voltage adjustment procedure is proposed to eliminate over-voltage and under-voltage of wind turbines. Based on the voltage adjustment procedure and the power generation model of wind turbines, the energy curtailment of a wind farm is analyzed with the consideration of wake effect due to series connection. A case study on several DC series-parallel collection configurations is presented to analyze the energy curtailment of wind farms using the voltage adjustment procedure.

Original languageEnglish
Title of host publicationProceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015
PublisherIEEE
Pages2014-2019
Number of pages6
ISBN (Electronic)9781467371063
DOIs
Publication statusPublished - 11 Mar 2016
Event5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015 - Changsha, China
Duration: 26 Nov 201529 Nov 2015

Conference

Conference5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015
CountryChina
CityChangsha
Period26/11/1529/11/15

Keywords

  • Dc series-parallel collection system
  • Energy curtailment
  • Offshore wind farm
  • Voltage adjustment
  • Wake effect

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  • Cite this

    Guo, J., Wang, X., Zhang, Z., Li, H., Lakshmanan, P., & Liang, J. (2016). Energy curtailment analysis of offshore wind farms with DC series-parallel collection systems. In Proceedings of the 5th IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies, DRPT 2015 (pp. 2014-2019). [7432570] IEEE. https://doi.org/10.1109/DRPT.2015.7432570