| The topology of the Modular Multilevel Converter (MMC) was introduced in 2001. The MMC topology is well suited for the High Voltage Direct Current (HVDC) system. The MMC-HVDC topology has several advantages over other topologies: (i) it is based on simple converter cells, (ii) it has easy voltage and current scaling, (iii) it features distributed capacitive energy storage, (iv) it oers straightforward protection schemes, (v) it has low switching frequency and losses. However, the simulation speed of a detailed MMC model in an HVDC system is slow due to the computational burden.;In this thesis, with the help of PSCAD/EMTDC, a new approach in a multi-core CPU environment has been implemented to speed up the simulations of the HVDC system based on the MMC topology. This approach is evaluated by comparing results with a single-core average model, a single-core detailed model and a eight-core detailed model. This thesis also includes an analysis selecting the best sorting algorithm. |
