Virtual Capacitor Concept for Effective Real-Time MMC Simulations
Conference: PCIM Europe digital days 2021 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/03/2021 - 05/07/2021 at Online
Proceedings: PCIM Europe digital days 2021
Pages: 8Language: englishTyp: PDF
Authors:
Milovanovic, Stefan; Dujic, Drazen (Power Electronics Laboratory, Ecole Polytechnique Federale de Lausanne, Switzerland)
Luo, Min (Plexim GmbH, Zurich, Switzerland)
Abstract:
In this paper, the real-time simulation model of the modular multilevel converter was split into several independent parts through the use of the virtual capacitor concept. As a result, the number of state-space matrices the real-time solver needs to take into account reduces, which leads to the simulation step size decrease. The proposed concept was verified on a large-scale hardware-in-the-loop system comprising seven RT Boxes, where the model of the physical system is deployed, and ABB PEC800 industrial controller, where control algorithms of the real power hardware are executed.