A new load flow and short-circuit analysis for unbalanced modern distribution system

Akhilesh Mathur, Rajesh Kumar, Vinay Pratap Singh

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This paper proposes a new load flow and short-circuit analysis method for unbalanced distribution system incorporating three-phase transformer models and inverter-based distributed generation (IBDG). Initially, a load flow method of an unbalanced distribution system is developed in this paper, which incorporates the mathematical model of three-phase transformer of any vector group and different modes of operation of IBDG. The advantage of the proposed method is that the required simulation time for the proposed method is smaller than the backward/forward method available in the literature. The fault analysis method developed subsequently in this paper also incorporates three-phase transformer model and IBDG in the short-circuit calculations. The mode of operation of IBDG during short-circuit analysis depends upon the magnitude of its short-circuit capacity. The results obtained from the proposed method have been compared with the time domain simulation studies carried out using PSCAD/EMTDC software to verify the accuracy of the proposed method.

Original languageEnglish
Article numbere13257
JournalInternational Transactions on Electrical Energy Systems
Volume31
Issue number12
DOIs
Publication statusPublished - Dec 2021
Externally publishedYes

ASJC Scopus subject areas

  • Modeling and Simulation
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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