TY - JOUR
T1 - DC current bus distributed power system and its stability analysis
AU - Wei, Yuqi
AU - Luo, Quanming
AU - Chen, Si
AU - Huang, Jian
AU - Zhou, Luowei
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2018.
PY - 2019/3/20
Y1 - 2019/3/20
N2 - DC distributed power systems (DPSs) have attained much attention because of its characteristics of high efficiency, high power density and flexible configuration. However, when converters are interconnected in a system, adverse interactions may occur due to the converter sensitivity to the external impedance, these interactions may degrade converters transient performance or cause stability issues. Currently, research mainly focuses on DPS with a DC voltage bus, including stability analysis and approaches to improve system stability. This study is to establish stability criteria for DPS with a DC current bus. Firstly, basic current type DC/DC converters and their small signal models are introduced. Then, the current bus DPS is derived, discussed, and the stability criteria are obtained by using two-port small signal model. The proposed criteria are verified by comparing the results of theoretical calculations and simulations. Finally, an experimental prototype is built to validate the theoretical analysis and simulation.
AB - DC distributed power systems (DPSs) have attained much attention because of its characteristics of high efficiency, high power density and flexible configuration. However, when converters are interconnected in a system, adverse interactions may occur due to the converter sensitivity to the external impedance, these interactions may degrade converters transient performance or cause stability issues. Currently, research mainly focuses on DPS with a DC voltage bus, including stability analysis and approaches to improve system stability. This study is to establish stability criteria for DPS with a DC current bus. Firstly, basic current type DC/DC converters and their small signal models are introduced. Then, the current bus DPS is derived, discussed, and the stability criteria are obtained by using two-port small signal model. The proposed criteria are verified by comparing the results of theoretical calculations and simulations. Finally, an experimental prototype is built to validate the theoretical analysis and simulation.
UR - https://www.scopus.com/pages/publications/85062551472
U2 - 10.1049/iet-pel.2018.5533
DO - 10.1049/iet-pel.2018.5533
M3 - 文章
AN - SCOPUS:85062551472
SN - 1755-4535
VL - 12
SP - 458
EP - 464
JO - IET Power Electronics
JF - IET Power Electronics
IS - 3
ER -