Analysis of Lightning Transient characteristics of short-length mixed MMC-MVDC transmission systemopen access
- Authors
- Usman, Muhammad; Park, Kyu-Hoon; Lee, Bang-Wook
- Issue Date
- Jul-2023
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- 4; Capacitance; DC cable; Flashover; insulation flashover; Lightning; maximum shielding failure; Modular Multilevel Converter; MVDC transmission; Poles and towers; Power cable insulation; Power cables; riser section; sheath grounding; Substations; Surges
- Citation
- IEEE Access, v.11, pp 1 - 17
- Pages
- 17
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Access
- Volume
- 11
- Start Page
- 1
- End Page
- 17
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113607
- DOI
- 10.1109/ACCESS.2023.3293531
- ISSN
- 2169-3536
- Abstract
- Medium voltage direct current (MVDC) transmission system are growing due to their assistive quality in conventional grid and compatibility with renewable power network. MVDC distribution links with “Mixed” overhead (OH) & underground (UG) sections could be devised based on urban planning. UG Cables or substations are indirectly exposed to lightning strikes due to adjacent tower sections. In case of MVDC converter or cable, present researchers do not specify lightning voltage impulse level for related system voltage. Therefore, preluding electromagnetic (EM) transient investigation are required to determine the maximum lightning overvoltages for system peripherals i.e. cable & Modular Multilevel Converter (MMC) substation. This research focuses on analyzing lightning performance of OH transmission towers-cable junction & tower-substation link in case of a shielding failure (SF) and back flashover (BF) for a ±35kV short-length mixed MMC-MVDC transmission scheme. This article provides broad-band modeling method for MMC substation for lightning investigation. In addition, based on a detailed time-domain parametric evaluation in <italic>PSCAD/EMTDC</italic> program, lightning impulse voltage across the transmission line’s pole insulator and embedded cable section are estimated along with numerical validation relying on travelling wave theory. Effect of project parameters such as tower grounding resistance, riser section surge impedance (which connects cable & OH line) and cable length on lightning overvoltage impacting the cable and connected tower section has been demonstrated. Author
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > SCHOOL OF ELECTRICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/113607)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.