Principles of operation of grids of DC and AC subgrids interconnected by power converters
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Tipus de documentArticle
Data publicació2020-06-15
EditorInstitute of Electrical and Electronics Engineers (IEEE)
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Abstract
The concept of segmented AC power systems interconnected by means of HVDC is becoming more and more significant for many cases worldwide. Such systems are already existing and will become more complex with the increasing emergence of HVDC links and grids defining DC systems and interconnecting multiple different AC systems. The concept of a grid composed of multiple subgrids motivates the need to define the governing roles of interconnecting power converters (IPC) which interconnect the different subgrids. Such IPC can have various operation modes which are analyzed in this paper. The principles of operation needed for each individual subgrid and for the overall system are introduced and discussed. The resulting fundamental equations are outlined and combined in a power flow formulation of the overall system. A simple case study is presented to illustrate the power flow formulation in a grid of multiple subgrids, also introducing example dynamic simulations of transitions between different operating points.
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© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
CitacióGomis-Bellmunt, O. [et al.]. Principles of operation of grids of DC and AC subgrids interconnected by power converters. "IEEE transactions on power delivery", 15 Juny 2020,
ISSN0885-8977
Fitxers | Descripció | Mida | Format | Visualitza |
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Grid_of_Grids.pdf | 2,860Mb | Accés restringit |