Статья

Series–Shunt Multiport Soft Normally Open Points

Jianwen ZhangKey Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, ChinaXin FengKey Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, ChinaJianqiao ZhouKey Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, ChinaJiajie ZangSchool of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai, ChinaJiacheng WangSchool of Mechatronic Systems Engineering, Simon Fraser University, Burnaby, BC, CanadaGang ShiKey Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, ChinaXu CaiKey Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Shanghai, ChinaYunwei LiDepartment of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada

2022en

ABI

Аннотация

Soft normally open point (SNOP) is an emerging solution for distributed networks (DNs) to address voltage violation and feeder congestion caused by the increasing integration of distributed energy resources and new types of loads. Based on power electronics, SNOPs can substitute traditional tie switches for power flow regulation, voltage adjustment, and power quality improvement, enhancing the DNs’ controllability and flexibility. Existing SNOPs found in demonstration projects and the literature are generally based on the back-to-back voltage-source converter (VSC). Because it requires more full-power-rating VSCs as the number of connected feeders increases, this solution is uneconomical in multifeeder flexible interconnection scenarios due to the high device cost and volume. Alternatively, this article proposes a series–shunt multiport SNOP (S 2 -MSNOP) based on a cascaded H-bridge structure and series–shunt arrangement. The proposed topology can easily extend its ports by increasing the number of submodules with small power ratings, reducing the device cost and volume. The operation principles and control strategies of the S 2 -MSNOP are elaborated. Verifications on both a 1-MVA simulation model and a 3.3-kVA scaled-down experimental platform prove the feasibility and effectiveness of the S 2 -MSNOP.

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Идентификаторы

DOI: 10.1109/tie.2022.3229375

Цитирования и источники

Цитирований: 3Использованных источников: 0

Показатели — AkademScholar