Load Control Using Sensitivity Identification by Means of Smart Transformer

Giovanni De Carne, Giampaolo Buticchi, Marco Liserre, Constantine Vournas

Research output: Journal PublicationArticlepeer-review

48 Citations (Scopus)

Abstract

The higher variability introduced by distributed generation leads to fast changes in the aggregate load composition, and thus in the power response during voltage variations. The smart transformer, a power electronics-based distribution transformer with advanced control functionalities, can exploit the load dependence on voltage for providing services to the distribution and transmission grids. In this paper, two possible applications are proposed: 1) the smart transformer overload control by means of voltage control action and 2) the soft load reduction method, that reduces load consumption avoiding the load disconnection. These services depend on the correct identification of load dependence on voltage, which the smart transformer evaluates in real time based on load measurements. The effect of the distributed generation on net load sensitivity has been derived and demonstrated with the control hardware in loop evaluation by means of a real time digital simulator.

Original languageEnglish
Pages (from-to)2606-2615
Number of pages10
JournalIEEE Transactions on Smart Grid
Volume9
Issue number4
DOIs
Publication statusPublished - Jul 2018
Externally publishedYes

Keywords

  • Smart transformer
  • load reduction
  • load voltage sensitivity
  • overload control
  • solid state transformer

ASJC Scopus subject areas

  • Computer Science (all)

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