TY - GEN
T1 - Adaptive Finite-time Control of DC-DC Converter Feeding Constant Power Load for Fuel Cell Vehicle
AU - Yuan, Cong
AU - Huangfu, Yigeng
AU - Ma, Rui
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/10/10
Y1 - 2020/10/10
N2 - The converter instability caused by the constant power load directly affects the safety and reliability of the fuel cell power system. To improve the stability of the fuel cell converter, an adaptive finite-time controller is proposed in this paper, which not only has stronger robustness but also realizes the large-signal stability of the fuel cell converter. Firstly, considering the load uncertainty, the canonical form of fuel cell converter is obtained by coordinate transformation, and the nonlinear model of fuel cell stack and converter is derived. Secondly, the disturbance observer is used to observe the load variation to ensure that the output voltage of the converter can accurately track the reference value. Thirdly, because the fuel cell output voltage is determined by the load power, a fuel cell output voltage estimator should be designed to estimate the real-time output voltage of fuel cell. Finally, the robustness and effectiveness of the control algorithm are verified by simulations.
AB - The converter instability caused by the constant power load directly affects the safety and reliability of the fuel cell power system. To improve the stability of the fuel cell converter, an adaptive finite-time controller is proposed in this paper, which not only has stronger robustness but also realizes the large-signal stability of the fuel cell converter. Firstly, considering the load uncertainty, the canonical form of fuel cell converter is obtained by coordinate transformation, and the nonlinear model of fuel cell stack and converter is derived. Secondly, the disturbance observer is used to observe the load variation to ensure that the output voltage of the converter can accurately track the reference value. Thirdly, because the fuel cell output voltage is determined by the load power, a fuel cell output voltage estimator should be designed to estimate the real-time output voltage of fuel cell. Finally, the robustness and effectiveness of the control algorithm are verified by simulations.
KW - constant power load
KW - DC-DC converter
KW - disturbance observer
KW - finite-time control
KW - fuel cell
UR - http://www.scopus.com/inward/record.url?scp=85100958252&partnerID=8YFLogxK
U2 - 10.1109/IAS44978.2020.9334791
DO - 10.1109/IAS44978.2020.9334791
M3 - 会议稿件
AN - SCOPUS:85100958252
T3 - 2020 IEEE Industry Applications Society Annual Meeting, IAS 2020
BT - 2020 IEEE Industry Applications Society Annual Meeting, IAS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Industry Applications Society Annual Meeting, IAS 2020
Y2 - 10 October 2020 through 16 October 2020
ER -