Challenges of Commutation Cell Tests with Voltage Source Inverters in Power-Hardware-in-the-Loop 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:
Lotz, Marc Rene (elenia Institute for High Voltage Technology and Power Systems, Technische Universität Braunschweig, Germany)
Koenemund, Martin (Institute for Electrical Energy and Automation Systems, Ostfalia University of Applied Sciences, Germany)
Abstract:
This paper depicts the challenges of testing Commutation Cells (CCs) of a Low Voltage (LV) Modular Multilevel Converter (MMC) implementation with Voltage Source Inverters (VSIs) acting as a current source. The CC, VSI and real-time simulation characteristics and dynamics are presented, which lead to implications on closed-loop Power-Hardware-in-the-Loop (PHiL) tests. Then, the setup is adapted to enable sufficient testing, with an approach for a feasible current controller design and an overall workflow of implementing a suitable testbed. Results of the PHiL simulation support the performance of such a test setup, while conveying distinct limitations of the current control and Commutation Cell (CC) test with Voltage Source Inverters (VSIs) regarding accuracy and operational ranges.