TY - GEN
T1 - A Frequency Trajectory Planning Control for Grid-forming Inverter
AU - Liu, Lei
AU - Xiong, Liansong
AU - Liu, Hongqing
AU - Yang, Xusong
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/6
Y1 - 2020/11/6
N2 - Due to the limited inertia damping of standalone power system, frequency deviation and rate of change of frequency (RoCoF) are vulnerable to disturbances, so it is necessary to improve frequency stability through proper control strategies. Limited by disturbance calculation and inertia/damping evaluation, the typical strategies such as droop control and virtual synchronous generator (VSG) cannot ensure frequency safety under large disturbance conditions. To solve these problems, the frequency trajectory planning control (FTP) is proposed to assist in controlling inertia/damping. FTP control autonomously detects the system frequency during normal operation. When the system frequency indicators have the risk of triggering frequency related relays, FTP function is enabled by frequency deviation and/or RoCoF, and actively plans a frequency trajectory that complies with national standards to limit the frequency trajectory in the safe area. Finally, the experimental results under different working conditions verified the effectiveness and advancement of the FTP control.
AB - Due to the limited inertia damping of standalone power system, frequency deviation and rate of change of frequency (RoCoF) are vulnerable to disturbances, so it is necessary to improve frequency stability through proper control strategies. Limited by disturbance calculation and inertia/damping evaluation, the typical strategies such as droop control and virtual synchronous generator (VSG) cannot ensure frequency safety under large disturbance conditions. To solve these problems, the frequency trajectory planning control (FTP) is proposed to assist in controlling inertia/damping. FTP control autonomously detects the system frequency during normal operation. When the system frequency indicators have the risk of triggering frequency related relays, FTP function is enabled by frequency deviation and/or RoCoF, and actively plans a frequency trajectory that complies with national standards to limit the frequency trajectory in the safe area. Finally, the experimental results under different working conditions verified the effectiveness and advancement of the FTP control.
KW - frequency stability
KW - frequency trajectory planning
KW - grid-forming inverter
KW - standalone power system
UR - https://www.scopus.com/pages/publications/85099452235
U2 - 10.1109/HVDC50696.2020.9292717
DO - 10.1109/HVDC50696.2020.9292717
M3 - 会议稿件
AN - SCOPUS:85099452235
T3 - 2020 4th International Conference on HVDC, HVDC 2020
SP - 1049
EP - 1054
BT - 2020 4th International Conference on HVDC, HVDC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on HVDC, HVDC 2020
Y2 - 6 November 2020 through 9 November 2020
ER -