TY - GEN
T1 - Fault Transfer Characteristics Analysis and Simplified Model of DC System Oriented to Relay Protection
AU - Song, Guobing
AU - Yin, Lishuai
AU - Hou, Junjie
AU - Han, Wei
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - In order to clarify the coupling relationship of fault information transmission characteristics in AC/DC hybrid system, a simplified model of DC system with electrical quantity transmission characteristics is established. Based on the switching function transfer theory, the law of fault information transmission on AC and DC sides is analyzed. On this basis, the dynamic phasor theory is introduced. Considering the steady-state, symmetrical and asymmetrical fault conditions, a simplified model of DC system is established based on the equivalent impedance of DC system and the control system. Combined with the simulation verification, the accuracy of the simplified model is verified by comparing with the detailed model. According to the general law of fault information transmission characteristics, the theoretical basis is provided for the follow-up research on the backup protection principle of AC/DC hybrid system.
AB - In order to clarify the coupling relationship of fault information transmission characteristics in AC/DC hybrid system, a simplified model of DC system with electrical quantity transmission characteristics is established. Based on the switching function transfer theory, the law of fault information transmission on AC and DC sides is analyzed. On this basis, the dynamic phasor theory is introduced. Considering the steady-state, symmetrical and asymmetrical fault conditions, a simplified model of DC system is established based on the equivalent impedance of DC system and the control system. Combined with the simulation verification, the accuracy of the simplified model is verified by comparing with the detailed model. According to the general law of fault information transmission characteristics, the theoretical basis is provided for the follow-up research on the backup protection principle of AC/DC hybrid system.
KW - HVDC
KW - simplified model
KW - transfer characteristics
UR - https://www.scopus.com/pages/publications/85096410511
U2 - 10.1109/APAP47170.2019.9225049
DO - 10.1109/APAP47170.2019.9225049
M3 - 会议稿件
AN - SCOPUS:85096410511
T3 - APAP 2019 - 8th IEEE International Conference on Advanced Power System Automation and Protection
SP - 1629
EP - 1633
BT - APAP 2019 - 8th IEEE International Conference on Advanced Power System Automation and Protection
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Conference on Advanced Power System Automation and Protection, APAP 2019
Y2 - 21 October 2019 through 24 October 2019
ER -