Modeling of MMC for Fast and Accurate Simulation of Electromagnetic Transients: A Review
Journal article, Peer reviewed
Published version
Permanent lenke
http://hdl.handle.net/11250/2474103Utgivelsesdato
2017Metadata
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- Institutt for elkraftteknikk [2482]
- Publikasjoner fra CRIStin - NTNU [38484]
Originalversjon
10.3390/en10081161Sammendrag
Over the past decade, modular multilevel converters have evolved as the preferred choice for high voltage conversion systems. The design of the converter poses a computational challenge to the classical electromagnetic transient simulation techniques, for which the existing literature proposes numerous simplified and computationally-efficient equivalent representations. Despite the extensive collection of proposed models, the literature lacks a systematic comparison of these representations, which could enable their appropriate selection based on the specific simulation objectives. In light of these requirements, this article presents a comprehensive review of MMC models and discusses their applicability for parallel and real-time simulation. Using PSCAD/EMTDC simulations, the models are objectively compared with regards to computational efficiency and accuracy for various transient conditions. In addition, the paper also presents a brief account of MMC operation and the associated control and modulation system.