TY - GEN
T1 - Stability Analysis and Active Stabilizer Design of The Bipolar DC Power System Feeding Constant Power Loads for Unmanned Aerial Vehicle
AU - Yuan, Cong
AU - Huangfu, Yigeng
AU - Bai, Hao
AU - Pang, Shengzhao
AU - Zhang, Hongyu
AU - Shi, Wenzhuo
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In the electric unmanned aerial vehicle, the bipolar DC power system is a good choice to provide power for airborne equipment because of its high efficiency and reliability. However, the constant power loads in bipolar DC power system can reduce the system damping and makes the system underdamped or even unstable. To reveal the instability mechanism of bipolar DC power system, firstly, the eigenvalue method is adopted to analyze the effect of controller parameters, constant power loads, constant current loads, and constant resistance loads on stability. Secondly, the active stabilizer is proposed to extend stability margin, which uses a high pass filtered voltage of DC bus following with a proportional compensator. Finally, the loads step tests are completed by MATLAB/Simulation. The simulation results verify the effectiveness of the active stabilizer and show a conservative zone of stability analysis between eigenvalue analysis and simulation.
AB - In the electric unmanned aerial vehicle, the bipolar DC power system is a good choice to provide power for airborne equipment because of its high efficiency and reliability. However, the constant power loads in bipolar DC power system can reduce the system damping and makes the system underdamped or even unstable. To reveal the instability mechanism of bipolar DC power system, firstly, the eigenvalue method is adopted to analyze the effect of controller parameters, constant power loads, constant current loads, and constant resistance loads on stability. Secondly, the active stabilizer is proposed to extend stability margin, which uses a high pass filtered voltage of DC bus following with a proportional compensator. Finally, the loads step tests are completed by MATLAB/Simulation. The simulation results verify the effectiveness of the active stabilizer and show a conservative zone of stability analysis between eigenvalue analysis and simulation.
KW - Active stabilizer
KW - Bipolar DC power system
KW - Constant power loads
KW - Eigenvalue method
KW - Stability analysis
UR - http://www.scopus.com/inward/record.url?scp=85142772983&partnerID=8YFLogxK
U2 - 10.1109/IAS54023.2022.9940119
DO - 10.1109/IAS54023.2022.9940119
M3 - 会议稿件
AN - SCOPUS:85142772983
T3 - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
BT - 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
Y2 - 9 October 2022 through 14 October 2022
ER -