Analytical Derivation of the AC-Side Input Admittance of a Modular Multilevel Converter with Open- and Closed-Loop Control Strategies
Journal article, 2018

This paper deals with the derivation of the ac-side input admittance of a grid-connected modular multilevel converter (MMC) under both open- and closed-loop ac-side current control strategies. The contribution of the internal dynamics of the MMC on the input admittance depends on the type of ac-side controllers implemented. For this reason, the input admittance is first derived with the MMC operating in open-loop on the ac side. The results are then modified to include various acside controllers in order to analyze the impact of the internal dynamics of the MMC on the total input admittance. Based on the findings, recommendations are given on modeling the input admittance of the MMC. Finally, the derived analytical models are verified using a detailed switching model of the MMC in the frequency domain.

modeling

input admittance

voltage source converter (VSC)

stability analysis

high voltage direct current (HVDC)

modular multilevel converter (MMC)

Author

Mebtu Bihonegn Beza

Chalmers, Electrical Engineering, Electric Power Engineering

Massimo Bongiorno

Chalmers, Electrical Engineering, Electric Power Engineering

Georgios Stamatiou

Chalmers, Electrical Engineering, Electric Power Engineering

IEEE Transactions on Power Delivery

0885-8977 (ISSN) 1937-4208 (eISSN)

Vol. 33 1 248-256 7919211

Driving Forces

Sustainable development

Areas of Advance

Energy

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TPWRD.2017.2701415

More information

Latest update

4/11/2018