Li, Chuanyue  ORCID: https://orcid.org/0000-0001-6835-6642, Wang, Sheng ORCID: https://orcid.org/0000-0002-2258-2633 and Liang, Jun ORCID: https://orcid.org/0000-0001-7511-449X
2017.
Switch yard and isolation control design for DC/AC/DC converter operating at power reversal condition in LCC-HVDC system.
Presented at: 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe),
Warsaw, Poland,
11-14 September 2017.
2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe).
IEEE,
10.23919/EPE17ECCEEurope.2017.8098981
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Abstract
As one type of the interconnected device between HVDC systems, the DC/AC/DC converter is able to achieve high-voltage connection and bulk-power transportation, which makes this device fit the interconnection of LCC-HVDCs. To achieve an efficient interconnected LCC-HVDC system, the DC/AC/DC converter is possible to operate under the condition that one LCC-HVDC runs at normal operation and the other at the operation of power reversal. This requests the DC/AC/DC converter to regulate power in terms of the interconnection between positive voltage and the negative. Considering the economy of the interconnection, the DC/AC/DC converter uses half-bridge sub-modules, which is not able to connect the negative-voltage system. To achieve the ability of negative-voltage connection, a switch yard is proposed to reverse the voltage polarity of DC/AC/DC converter. And a control system of the DC/AC/DC converter is proposed to protect the normal LCC-HVDC from the influence of LCC-HVDC during power reversal.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Engineering |
| Publisher: | IEEE |
| ISBN: | 978-90-75815-27-6 |
| Last Modified: | 22 May 2023 01:18 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/112395 |
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