TY - GEN
T1 - A Transformerless Bidirectional DC-DC Converter based on Power Units with Unipolar and Bipolar structure for MVDC Interconnection
AU - Sun, Lejia
AU - Zhuo, Fang
AU - Wang, Feng
AU - Yi, Hao
AU - Ma, Baohui
N1 - Publisher Copyright:
© 2018 IEEJ Industry Application Society.
PY - 2018/10/22
Y1 - 2018/10/22
N2 - In this paper, a novel bidirectional DC-DC converter based on series-connected power units (BPUC) for unipolar and bipolar MVDC interconnection is proposed.compared with traditional grid-connecting converters, the proposed converter has a transformerless structure to reduce size, cost, and power loss, being more suitable for MVDC systems emphasizing on efficiency, small volume, and low cost. In addition, the proposed converter can be applied as both a unipolar and a bipolar converter in MVDC networks, which greatly extends its scope of application and improves its transmission efficiency. Its control system can realized precise power interaction between DC grids. Simulations of the 4-level unipolar BPUC and bipolar BPUC were implemented, and a 1 kW experimental implementation of the 4-level unipolar BPUC was developed to verify the converter effectiveness.
AB - In this paper, a novel bidirectional DC-DC converter based on series-connected power units (BPUC) for unipolar and bipolar MVDC interconnection is proposed.compared with traditional grid-connecting converters, the proposed converter has a transformerless structure to reduce size, cost, and power loss, being more suitable for MVDC systems emphasizing on efficiency, small volume, and low cost. In addition, the proposed converter can be applied as both a unipolar and a bipolar converter in MVDC networks, which greatly extends its scope of application and improves its transmission efficiency. Its control system can realized precise power interaction between DC grids. Simulations of the 4-level unipolar BPUC and bipolar BPUC were implemented, and a 1 kW experimental implementation of the 4-level unipolar BPUC was developed to verify the converter effectiveness.
KW - bidirectional
KW - bipolar
KW - multilevel
KW - unipolar
UR - https://www.scopus.com/pages/publications/85057340627
U2 - 10.23919/IPEC.2018.8507583
DO - 10.23919/IPEC.2018.8507583
M3 - 会议稿件
AN - SCOPUS:85057340627
T3 - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
SP - 2882
EP - 2886
BT - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Y2 - 20 May 2018 through 24 May 2018
ER -