Print Email Facebook Twitter Optimized Control of LCL-VSC Converter With Refined s-Parameter Title Optimized Control of LCL-VSC Converter With Refined s-Parameter Author Liu, L. (TU Delft Intelligent Electrical Power Grids) Popov, M. (TU Delft Intelligent Electrical Power Grids) van der Meijden, M.A.M.M. (TU Delft Intelligent Electrical Power Grids; TenneT TSO B.V.) Terzija, Vladimir (The University of Manchester) Date 2017 Abstract For the control of high-voltage dc (HVdc) systems, especially for that of the multiterminal HVdc (MTdc) systems, the voltage source converter (VSC) is a good option because of its high controllability. These days, different types of VSC converters have been realized such as the two/three level converter and modular multilevel converter. However, VSC converters are vulnerable against dc faults because the paralleled diodesmay experience large fault currents. In order to maintain the sustainability of electricity delivery, efforts have been paid on protecting the HVdc networks, such as the novel converter topologies with the capability to tolerate faults and the dc circuit breaker. Among which, the concept of the inductor-capacitor-inductor circuit (LCL)-VSC converter aims at enhancing the ability of converter to ride through dc faults, which limits currents flowing fromthe ac side to dc side. The proposed method in this paper optimizes the control of LCL-VSC for partial load so that the power loss can be drastically decreased. In addition, the preferable working range for the LCL converter is introduced to guarantee the ability of restraining fault currents. The method is verified on the PSCAD/EMTdc platform. Subject High-voltage DC (HVDC)Modular multilevel converter (MMC)Multiterminal HVDC (MTDC)PSCAD/ EMTDCVoltage source converter (VSC) To reference this document use: http://resolver.tudelft.nl/uuid:7314343a-2246-4931-a92a-3daf4952f000 DOI https://doi.org/10.1109/TPWRD.2016.2619160 ISSN 0885-8977 Source IEEE Transactions on Power Delivery, 32 (4), 2101-2110 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2017 L. Liu, M. Popov, M.A.M.M. van der Meijden, Vladimir Terzija Files PDF 26527305_post_print.pdf 888.8 KB Close viewer /islandora/object/uuid:7314343a-2246-4931-a92a-3daf4952f000/datastream/OBJ/view