Reliability and Cost-Oriented Analysis, Comparison and Selection of Multi-Level MVdc Converters
| Autor: | Jun Liang, Gayan Abeynayake, Gen Li, Tibin Joseph, Wenlong Ming |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
020209 energy Energy Engineering and Power Technology Topology (electrical circuits) 02 engineering and technology Converters Network topology Power (physics) Reliability (semiconductor) 0202 electrical engineering electronic engineering information engineering Electronic engineering Redundancy (engineering) Voltage source Electrical and Electronic Engineering Voltage |
| Zdroj: | IEEE Transactions on Power Delivery. 36:3945-3955 |
| ISSN: | 1937-4208 0885-8977 |
| Popis: | DC technology has gained considerable interest in the medium voltage applications due to the benefits over the AC counterpart. However, to utilize the full capacity of this development, selection of a suitable power electronic converter topology is a key aspect. From the pool of voltage source converters (VSCs), it is unclear which topology is suitable for multi-megawatt applications at medium voltage dc (MVdc) levels. To address this, the paper proposes a selection guideline based on reliability and optimum redundancy levels of VSCs for MVdc applications. This will be combined with other functional factors such as operational efficiency and return-on-investment. Three candidate multi-level topologies namely three-level neutral point clamped converter (3L-NPC), modular multi-level converter (MMC) and cascaded 3L-NPC (which is being used for the first MVdc link in the UK) have been evaluated over two-level-VSC from 10 kV to 50 kV. Results show that with the increase of MVdc voltage level MMC shows better performance whereas at low MVdc levels 3L-NPC is the prominent topology. |
| Databáze: | OpenAIRE |
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