A hybrid cascaded converter applicable for UHVDC transmission and feeding to load centre
A hybrid cascaded converter applicable for UHVDC transmission and feeding to load centre
- Author(s): Ruizhang Yang ; Wang Xiang ; Weixing Lin ; Jinyu Wen
- DOI: 10.1049/cp.2019.0024
For access to this article, please select a purchase option:
Buy conference paper PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
15th IET International Conference on AC and DC Power Transmission (ACDC 2019) — Recommend this title to your library
Thank you
Your recommendation has been sent to your librarian.
- Author(s): Ruizhang Yang ; Wang Xiang ; Weixing Lin ; Jinyu Wen Source: 15th IET International Conference on AC and DC Power Transmission (ACDC 2019), 2019 page (6 pp.)
- Conference: 15th IET International Conference on AC and DC Power Transmission (ACDC 2019)
- DOI: 10.1049/cp.2019.0024
- ISBN: 978-1-83953-007-4
- Location: Coventry, UK
- Conference date: 5-7 Feb. 2019
- Format: PDF
This paper proposes a new kind of hybrid cascaded converter for the UHVDC systems connected to load centres. The cascaded converter is formed by the MMCs in series-parallel connection. When the cascaded converter is applied to the UHVDC system as the inverter, the system will combine the merits of hierarchical connection with asynchronous interconnection so as to strengthen the receiving system and makes the power distribution of the receiving system more flexible. The structure of the cascaded converter is introduced in detail. The control strategy is proposed. The specific operating modes and the strategy to switch operating modes are studied in detail, for which a certain amount of power transmission can be guaranteed when one of the sub-converters quit operation. Finally, a hybrid UHVDC system based on cascaded converter is built in PSCAD/EMTDC. The simulation verifies the availability of the system and control strategy. The results indicate that the cascaded converter has a good availability in UHVDC system feeding in intensive receiving systems.
Inspec keywords: power distribution control; HVDC power transmission; power system interconnection; invertors; power convertors; power transmission control
Subjects: DC-AC power convertors (invertors); Power system control; Distribution networks; d.c. transmission; Power system management, operation and economics; Control of electric power systems
Related content
content/conferences/10.1049/cp.2019.0024
pub_keyword,iet_inspecKeyword,pub_concept
6
6