TY - JOUR
T1 - Impedance Modelling and Stability Analysis of Triple Active Bridge Converter-Based Renewable Electricity-Hydrogen-Integrated Metro DC Traction Power System
AU - Yu, Haoyuan
AU - Wang, Yanbo
AU - Zhang, Hanwen
AU - Chen, Zhe
PY - 2023/12/31
Y1 - 2023/12/31
N2 - DC power supply system has been widely applied in metro traction power system. This article presents a novel framework for future metro traction power system (MTPS) with renewable energy, named renewable electricity-hydrogen-integrated metro traction power system (RMTPS), to reduce overall energy consumption and carbon emission of the MTPS. The framework and operation modes of RMTPS are first developed, where triple active bridge (TAB) converter-based multi-port metro energy router (MMER) is innovatively presented to integrate electricity subsystem, hydrogen subsystem and MTPS. Then, an impedance modelling method of MMER is developed based on the extra element theorem (EET). It can adaptively obtain terminal impedance characteristics of MMER considering the effect of multi¬¬-directional power flow and source/load characteristic variation on other terminals. Further, the stability of RMTPS under different operation modes is investigated based on the developed impedance modelling method. Simulation and experimental results are given to validate the effectiveness of the proposed impedance model and stability analysis for RMTPS. The proposed method can further benefit stability design of multi-port metro energy router in practical application.
AB - DC power supply system has been widely applied in metro traction power system. This article presents a novel framework for future metro traction power system (MTPS) with renewable energy, named renewable electricity-hydrogen-integrated metro traction power system (RMTPS), to reduce overall energy consumption and carbon emission of the MTPS. The framework and operation modes of RMTPS are first developed, where triple active bridge (TAB) converter-based multi-port metro energy router (MMER) is innovatively presented to integrate electricity subsystem, hydrogen subsystem and MTPS. Then, an impedance modelling method of MMER is developed based on the extra element theorem (EET). It can adaptively obtain terminal impedance characteristics of MMER considering the effect of multi¬¬-directional power flow and source/load characteristic variation on other terminals. Further, the stability of RMTPS under different operation modes is investigated based on the developed impedance modelling method. Simulation and experimental results are given to validate the effectiveness of the proposed impedance model and stability analysis for RMTPS. The proposed method can further benefit stability design of multi-port metro energy router in practical application.
UR - https://vbn.aau.dk/en/publications/6f9a1912-499e-4f54-812e-90732c35fcc1
U2 - 10.1109/TIE.2023.3237898
DO - 10.1109/TIE.2023.3237898
M3 - Article
SN - 0278-0046
VL - 70
SP - 12340
EP - 12353
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 12
ER -
