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A power decoupling control for wind power converter based on series-connected MMC and open-winding PMSG

Sun, Baiyan, Chen, Zhen, Gao, Congzhe, Haddad, A., Liang, Jun and Liu, Xiangdong 2022. A power decoupling control for wind power converter based on series-connected MMC and open-winding PMSG. IEEE Transactions on Industrial Electronics 69 (8) , pp. 8091-8101. 10.1109/TIE.2021.3099227

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Abstract

A power decoupling control for wind power converter based on series-connected modular multilevel converter (SCMMC) and open-winding permanent magnetic synchronous generator (OW-PMSG) is proposed in this paper. The power converter based on SCMMC and OW-PMSG achieves medium voltage direct conversion and transmission and has higher dc-bus voltage compared with conventional MMC, which makes it a promising solution for copper consumption reduction of cable, low power transmission loss and the elimination of the step-up converter. The proposed power decoupling control realizes independent power control of each phase in the wind power converter by decoupling the negative-sequence and zero-sequence current and guarantees the phase dc-link voltages balance of the SCMMC and the robustness to restrain the imbalance power disturbance. Instantaneous three phase dc-link voltages balance of the SCMMC is achieved especially when the imbalance of phase dc-link voltages occurs. The feasibility of the wind power converter based on SCMMC and OW-PMSG and the proposed power decoupling control are verified through simulations and a scaled-down laboratory prototype.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 0278-0046
Last Modified: 13 Apr 2022 14:00
URI: https://orca.cardiff.ac.uk/id/eprint/144017

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