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Electromechanical transient modelling and application of modular multilevel converter with embedded energy storage
- Source :
- IET Generation, Transmission & Distribution, Vol 16, Iss 1, Pp 123-136 (2022)
- Publication Year :
- 2022
- Publisher :
- Wiley, 2022.
-
Abstract
- Abstract This paper studies the electromechanical transient modelling techniques of the modified modular multilevel converter (MMC), named active MMC, which is equipped with embedded energy storage in submodules. Firstly, the mathematical model of the active MMC and its equivalent circuits at the AC and DC sides are established. Then, the control scheme of active MMC that focus on the cooperation of the MMC converter and the energy storage submodules is illustrated. The proposed electromechanical transient model are implemented on PSS/E and compared with the electromagnetic transient model on PSCAD in a two terminal active MMC sytem; the results of the active MMC system under AC and DC fault prove the validity of the proposed model. Lastly, stability studies of the practical system are carried out, and the simulation results prove the improvement by the application of the active MMC on the rotor angle stability and frequency stability.
Details
- Language :
- English
- ISSN :
- 17518695 and 17518687
- Volume :
- 16
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- IET Generation, Transmission & Distribution
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.24b55de61b014b39ba3057b511fcca87
- Document Type :
- article
- Full Text :
- https://doi.org/10.1049/gtd2.12282