Print Email Facebook Twitter Single-ended DC Fault Location Method For MMC-Based HVDC Power System Using Adaptive Multi-step Levenberg-Marquardt Algorithm Title Single-ended DC Fault Location Method For MMC-Based HVDC Power System Using Adaptive Multi-step Levenberg-Marquardt Algorithm Author Liu, L. (TU Delft Intelligent Electrical Power Grids) Xie, F. (TU Delft Intelligent Electrical Power Grids; Xi’an Jiaotong University) Popov, M. (TU Delft Intelligent Electrical Power Grids) Hao, Zhiguo (Xi’an Jiaotong University) Lekić, A. (TU Delft Intelligent Electrical Power Grids) Date 2023 Abstract This article presents an accurate DC fault location method that applies parameter fitting. This technique first discusses the traveling wave (TW) propagation process in the decoupled line-mode network. We obtain the exact fault distance equation based on the analytical expressions for the wavefront of backward line-mode voltage TW. The adaptive multi-step Levenberg- Marquardt's (AMLM) algorithm is used for parameter fitting due to its fast processing speed and accuracy. The exact fault location can then be estimated using the parameter fitting results. The proposed fault location method is validated using a three-terminal HVDC system modeled on a real-time digital simulator (RTDS) platform. Based on the experimental results, the proposed method accurately detects the fault location, with all estimated errors smaller than 1%, and can withstand 40 dB noise interference. Moreover, the proposed method does not need a high sampling frequency and communication device. Its accuracy is independent of fault resistance and type compared to existing methods. Subject HVDCVSCbackward traveling waveDC fault locationparameter fittingLevenberg-MarquardtRTDS To reference this document use: http://resolver.tudelft.nl/uuid:ee398f73-31f5-4d0c-9c91-842486d6b6b2 DOI https://doi.org/10.1109/PowerTech55446.2023.10202991 Publisher IEEE, Piscataway Embargo date 2024-02-09 ISBN 978-1-6654-8779-5 Source Proceedings of the 2023 IEEE Belgrade PowerTech Event 2023 IEEE Belgrade PowerTech, 2023-06-25 → 2023-06-29, Belgrade, Serbia Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2023 L. Liu, F. Xie, M. Popov, Zhiguo Hao, A. Lekić Files PDF Single_Ended_DC_Fault_Loc ... orithm.pdf 9 MB Close viewer /islandora/object/uuid:ee398f73-31f5-4d0c-9c91-842486d6b6b2/datastream/OBJ/view