Small Signal Model of Modular Multilevel Converter with Power Synchronization Control

Published On 2023/3/19

Power synchronization control (PSC) is one of the popular control schemes in grid-forming control-based converters because it simulates the grid support capability of conventional synchronous generators. However, prior research is based on two-level converters which do not have complex internal circuits, and whether PSC can be directly applied to the modular multilevel converter (MMC) topology since MMC has sub-module capacitor voltage ripples and inherent second harmonic circulating current algorithm, has not been analyzed. This paper establishes the small signal model of MMC with PSC considering the MMC internal dynamic and circulating current suppression control (CCSC). The power oscillation phenomenon when grid short-circuit ratio (SCR) increases is also demonstrated with the closed-loop system eigenvalues calculation and verified with the experimental results.

Published On

2023/3/19

Page

2815-2820

Authors

Remus Teodorescu

Remus Teodorescu

Aalborg Universitet

Position

Professor at

H-Index(all)

104

H-Index(since 2020)

72

I-10 Index(all)

0

I-10 Index(since 2020)

0

Citation(all)

0

Citation(since 2020)

0

Cited By

0

Research Interests

Power Electronics

Smart Batteries

AI

University Profile Page

Tomislav Dragičević

Tomislav Dragičević

Danmarks Tekniske Universitet

Position

Professor

H-Index(all)

72

H-Index(since 2020)

69

I-10 Index(all)

0

I-10 Index(since 2020)

0

Citation(all)

0

Citation(since 2020)

0

Cited By

0

Research Interests

Microgrids

Electric Drives

Power Electronics

Power Systems

Smart Grids

University Profile Page

Tamás Kerekes

Tamás Kerekes

Aalborg Universitet

Position

H-Index(all)

42

H-Index(since 2020)

31

I-10 Index(all)

0

I-10 Index(since 2020)

0

Citation(all)

0

Citation(since 2020)

0

Cited By

0

Research Interests

power electronics

grid connection

renewable energy

University Profile Page

rui wang

rui wang

Aalborg Universitet

Position

H-Index(all)

7

H-Index(since 2020)

7

I-10 Index(all)

0

I-10 Index(since 2020)

0

Citation(all)

0

Citation(since 2020)

0

Cited By

0

Research Interests

Power electronics

University Profile Page

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