On the modeling of MMC for use in large scale dynamic simulations

Julian Freytes, Lampros Papangelis, Hani Saad, Pierre Rault, Thierry Van Cutsem, Xavier Guillaud
2016 2016 Power Systems Computation Conference (PSCC)  
This paper focuses on simplified models of the Modular Multilevel Converter suitable for large-scale dynamic studies, in particular simulations under the phasor approximation. Compared to the existing literature, this paper does not a priori adopt the modeling approach followed for the original twolevel or three-level Voltage Source Converter. On the contrary, a model is derived following a physical analysis that preserves its average internal dynamic behavior. An equivalent control structure
more » ... proposed and various alternatives are highlighted. The proposed model with its controllers has been implemented in a phasor simulation software and its response has been validated against a detailed Electromagnetic Transient model. Finally, an illustrative example is presented with the application of the proposed model on a large grid consisting of AC areas interconnected with a multi-terminal DC grid. Index Terms-High Voltage Direct Current (HVDC), Modular Multilevel Converter (MMC), Voltage Source Converter (VSC), Phasor approximation.
doi:10.1109/pscc.2016.7540938 dblp:conf/pscc/FreytesPSRCG16 fatcat:j5vzallmgbb5zo7kja46fx4spi