Next Article in Journal
A New Entity Relationship Extraction Method for Semi-Structured Patent Documents
Previous Article in Journal
AM-ESRGAN: Super-Resolution Reconstruction of Ancient Murals Based on Attention Mechanism and Multi-Level Residual Network
Previous Article in Special Issue
An Adaptive Virtual-Impedance-Based Current-Limiting Method with the Functionality of Transient Stability Enhancement for Grid-Forming Converter
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Electronics
Volume 13
Issue 16
10.3390/electronics13163143
electronics-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

A Grid-Forming Converter with MVDC Supply and Integrated Step-Down Transformer: Modeling, Control Perspectives, and Control Hardware-in-the-Loop (C-HIL) Verification

by
Saeed Golestan
1,*,
Manuel Barrios
1,
Hessam Golmohamadi
1,
Florin Iov
1,
Birgitte Bak-Jensen
1 and
Mohammad Monfared
2
1
AAU Energy, Aalborg University, 9220 Aalborg Øst, Denmark
2
Department of Electronic and Electrical Engineering, Swansea University, Swansea SA2 8PP, UK
*
Author to whom correspondence should be addressed.
Electronics 2024, 13(16), 3143; https://doi.org/10.3390/electronics13163143
Submission received: 13 July 2024 / Revised: 4 August 2024 / Accepted: 6 August 2024 / Published: 8 August 2024
(This article belongs to the Special Issue Power Quality Conditioning and Stability Enhancement of More-Electronics Power Systems, 2nd Edition)
Browse Figures
Versions Notes

Abstract

A grid-forming voltage source converter with an integrated step-down transformer could be a promising solution for supplying low-voltage alternating current loads from a medium-voltage direct current supply. However, it may require a control system that gathers feedback signals from both the primary and secondary sides of the transformer, which in turn complicates the derivation of a standard form linear model. The absence of such a model complicates control tuning, as well as the assessment of dynamics and stability of the converter system. The objective of this paper is to address this gap in knowledge. For the case study, a conventional H-bridge converter with a step-down transformer and an αβ-frame dual-loop grid-forming controller is considered. Initially, comprehensive guidelines on deriving a standard form linear model for this converter system are presented. Then, the impact of controlling the VSC in a dq frame and the changes in the transformer vector group on the small-signal model of the VSC are analyzed. The aspects of control tuning are also discussed in detail, and the model’s accuracy and efficacy are validated both theoretically and through control hardware-in-the-loop (C-HIL) tests using a Typhoon HIL setup.
Keywords: control hardware-in-the-loop (C-HIL); control tuning; grid-forming control; low-voltage alternating current (LVAC); medium-voltage direct current (MVDC); small-signal modeling; transformer; voltage source converter (VSC); voltage control control hardware-in-the-loop (C-HIL); control tuning; grid-forming control; low-voltage alternating current (LVAC); medium-voltage direct current (MVDC); small-signal modeling; transformer; voltage source converter (VSC); voltage control

Share and Cite

MDPI and ACS Style

Golestan, S.; Barrios, M.; Golmohamadi, H.; Iov, F.; Bak-Jensen, B.; Monfared, M. A Grid-Forming Converter with MVDC Supply and Integrated Step-Down Transformer: Modeling, Control Perspectives, and Control Hardware-in-the-Loop (C-HIL) Verification. Electronics 2024, 13, 3143. https://doi.org/10.3390/electronics13163143

AMA Style

Golestan S, Barrios M, Golmohamadi H, Iov F, Bak-Jensen B, Monfared M. A Grid-Forming Converter with MVDC Supply and Integrated Step-Down Transformer: Modeling, Control Perspectives, and Control Hardware-in-the-Loop (C-HIL) Verification. Electronics. 2024; 13(16):3143. https://doi.org/10.3390/electronics13163143

Chicago/Turabian Style

Golestan, Saeed, Manuel Barrios, Hessam Golmohamadi, Florin Iov, Birgitte Bak-Jensen, and Mohammad Monfared. 2024. "A Grid-Forming Converter with MVDC Supply and Integrated Step-Down Transformer: Modeling, Control Perspectives, and Control Hardware-in-the-Loop (C-HIL) Verification" Electronics 13, no. 16: 3143. https://doi.org/10.3390/electronics13163143

APA Style

Golestan, S., Barrios, M., Golmohamadi, H., Iov, F., Bak-Jensen, B., & Monfared, M. (2024). A Grid-Forming Converter with MVDC Supply and Integrated Step-Down Transformer: Modeling, Control Perspectives, and Control Hardware-in-the-Loop (C-HIL) Verification. Electronics, 13(16), 3143. https://doi.org/10.3390/electronics13163143

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop