Power flow control scheme for multiport power electronics transformers. Issue 4 (1st December 2018)

• Record Type: Journal Article
• Authors: Zhang, Huaitian; Jing, Long; Wu, Xuezhi; Jiang, Jiuchun; Wickramasinghe, Harith R.; Konstantinou, Georgios
• Is Part Of: High voltage. Volume 3:Issue 4(2018)
• Page Start: 255
• Page End: 262
• Publication Date: 2018-12-01
• Subjects: AC‐DC power convertors -- power transformers -- power grids -- load flow control -- power electronics -- power convertors -- distributed power generation -- distribution networks; hybrid ac/dc distribution network -- distributed generation -- multiport power electronics transformers -- hybrid ac/dc systems -- competitive solution -- future network expansion -- multiport PET interfacing medium‐voltage -- low‐voltage networks -- comprehensive power flow control scheme -- globalised multiport transmission model -- droop control -- coordinated energy exchange; High voltages -- Periodicals; 621.3191
• DOI: 10.1049/hve.2018.5034
• Languages: English
• ISSNs: 2397-7264

Abstract

Abstract : Development of power electronics transformers (PETs) has made dc distribution and hybrid ac/dc systems a competitive solution for future network expansion. This study focuses on the functions of a multiport PET interfacing medium‐voltage and low‐voltage networks. A comprehensive power flow control scheme based on a globalised multiport transmission model of the PET and droop control is derived. This allows for a coordinated energy exchange between the ports of the PET, which enables autonomous operation. Simulations of the proposed approach in a hybrid ac/dc distribution network with different levels of distributed generation and loads verify the effectiveness of the method.