Hierarchical power flow algorithm for standalone hybrid AC/Multi-DC microgrids

Ernauli Aprilia, Ke Meng, Zhao Yang Dong, Youwei Jia, Zhao Xu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)


Recent development in hybrid ac/dc microgrid has led researchers to study the mixed ac/dc power flow algorithm. This paper proposes a hierarchical approach to solve power flow of islanded hybrid ac/dc microgrids based on the well-established Newton Raphson approach where the ac and dc power flow is solved iteratively. It also takes into account the absence of slack bus in islanded operation, the coupling of ac frequency and dc voltage, as well as the droop control of distributed generations. To achieve power sharing between the ac and dc subgrids, this method incorporates the interlinking converter droop constants in the equation. The algorithm was implemented in Matlab and tested on modified systems involving one ac and single/multiple dc subgrids. Simulation results show the adaptability of the proposed algorithm in solving mixed power flow of several interconnected hybrid grids. Such straightforward and easy-to-implement algorithm will aid the design and planning process of microgrids.

Original languageEnglish
Title of host publication2017 IEEE Power and Energy Society General Meeting, PESGM 2017
PublisherIEEE Computer Society
Number of pages5
ISBN (Electronic)9781538622124
Publication statusPublished - 29 Jan 2018
Event2017 IEEE Power and Energy Society General Meeting, PESGM 2017 - Chicago, United States
Duration: 16 Jul 201720 Jul 2017

Publication series

NameIEEE Power and Energy Society General Meeting
ISSN (Print)1944-9925
ISSN (Electronic)1944-9933


Conference2017 IEEE Power and Energy Society General Meeting, PESGM 2017
Country/TerritoryUnited States


  • Droop control
  • Hybrid ac/dc microgrid
  • Newton-Raphson
  • Power flow analysis

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering


Dive into the research topics of 'Hierarchical power flow algorithm for standalone hybrid AC/Multi-DC microgrids'. Together they form a unique fingerprint.

Cite this