Dynamic Active Power Control with Improved Undead-Band Droop for HVDC Grids

T.K. Vrana, Lorenzo Zeni, O.B. Fosso

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Abstract

The earlier developed control method using a piecewise linear droop curve, with different droop values for the different segments, has now been optimised for dynamic performance. Non-linearities at the junctions of two linear droop sections have been adressed. Also non-linearity of power based DC voltage control has been adressed. Dynamic instability due to high control gains has been treated and a new improved control structure has been proposed. The concepts have been validated with RMS simulation with the DIgSILENT PowerFactory software on the CIGRE B4 DC grid test system.
Original languageEnglish
Publication date2012
Number of pages6
Publication statusPublished - 2012
Event10th International Conference on AC and DC Power Transmission - The Holiday Inn Birmingham City, Birmingham, United Kingdom
Duration: 4 Dec 20126 Dec 2012

Conference

Conference10th International Conference on AC and DC Power Transmission
LocationThe Holiday Inn Birmingham City
CountryUnited Kingdom
CityBirmingham
Period04/12/201206/12/2012

Keywords

  • HVDC
  • Power Converter
  • Active Power Control
  • Droop Control
  • Meshed DC Grid

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