TY - GEN
T1 - Switching Mechanism and Stability Analysis of Dual PSL System Considering Current Limiting
AU - Tu, Zengze
AU - Liu, Jingrui
AU - Shao, Zhenxing
AU - Li, Jiapeng
AU - Liu, Yonghui
AU - Li, Yujun
N1 - Publisher Copyright:
© Beijing Paike Culture Commu. Co., Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - The grid converter usually needs to take current limiting measures to suppress overcurrent, which will make the power system become a switching system, and the switching mechanism of the switching system is not clear. In this paper, for dual-machine systems considering current limiting, the switching boundary of two converters in constant voltage control mode and current limiting control mode is deduced by circuit principle, and the switching mechanism of the system is defined. It is found that when the current saturation algorithm is used to limit the current, the setting of the saturation current angle will affect the switching boundary and the stable equilibrium point of two converters in the current limiting mode. Finally, by configuring the saturation current angle and changing the stable equilibrium point position of the converter in current limiting mode, the converter is not locked in current limiting mode, and the theory is verified by simulation.
AB - The grid converter usually needs to take current limiting measures to suppress overcurrent, which will make the power system become a switching system, and the switching mechanism of the switching system is not clear. In this paper, for dual-machine systems considering current limiting, the switching boundary of two converters in constant voltage control mode and current limiting control mode is deduced by circuit principle, and the switching mechanism of the system is defined. It is found that when the current saturation algorithm is used to limit the current, the setting of the saturation current angle will affect the switching boundary and the stable equilibrium point of two converters in the current limiting mode. Finally, by configuring the saturation current angle and changing the stable equilibrium point position of the converter in current limiting mode, the converter is not locked in current limiting mode, and the theory is verified by simulation.
KW - Current Limiting
KW - Dual-machine Systems
KW - Saturation Current Angle
UR - https://www.scopus.com/pages/publications/105000296137
U2 - 10.1007/978-981-96-1856-9_47
DO - 10.1007/978-981-96-1856-9_47
M3 - 会议稿件
AN - SCOPUS:105000296137
SN - 9789819618552
T3 - Lecture Notes in Electrical Engineering
SP - 460
EP - 468
BT - The Proceedings of 2024 International Conference of Electrical, Electronic and Networked Energy Systems
A2 - Sha, Aimin
A2 - Peng, Jishen
A2 - Rong, Cancan
A2 - Zhang, Li
A2 - Yan, XIaoheng
A2 - Jin, Zheming
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024
Y2 - 18 October 2024 through 20 October 2024
ER -