TY - GEN
T1 - A Novel Oscillation Damping Method of Virtual Synchronous Generator Control Without PLL Using Pole Placement
AU - Liu, Jia
AU - Miura, Yushi
AU - Ise, Toshifumi
N1 - Publisher Copyright:
© 2018 IEEJ Industry Application Society.
PY - 2018/10/22
Y1 - 2018/10/22
N2 - Recent years, in order to avoid probable inertia decrease of power system due to increasing inverter-interfaced distributed generators, virtual synchronous generator (VSG) control, an inverter control scheme providing virtual inertia, has been proposed. However, the resonant mode of basic VSG control results in transient oscillation damping. In this study, a state-space model of a synchronous generator connected to infinite bus is established to study the mechanism of this oscillation and to understand the damping effect of previous VSG control methods. Based on the state-space model, a novel oscillation damping method of VSG using pole placement is proposed. With a very simple state feedback control, the proposed method provides proper damping without any frequency measurement whereas keeps the inertial feature of VSG. Simulation results obtained with PSCAD/EMTDC and experimental results obtained in a laboratorial microgrid testbed indicate that the proposed method outperforms previous VSG control methods with excellent transient performance.
AB - Recent years, in order to avoid probable inertia decrease of power system due to increasing inverter-interfaced distributed generators, virtual synchronous generator (VSG) control, an inverter control scheme providing virtual inertia, has been proposed. However, the resonant mode of basic VSG control results in transient oscillation damping. In this study, a state-space model of a synchronous generator connected to infinite bus is established to study the mechanism of this oscillation and to understand the damping effect of previous VSG control methods. Based on the state-space model, a novel oscillation damping method of VSG using pole placement is proposed. With a very simple state feedback control, the proposed method provides proper damping without any frequency measurement whereas keeps the inertial feature of VSG. Simulation results obtained with PSCAD/EMTDC and experimental results obtained in a laboratorial microgrid testbed indicate that the proposed method outperforms previous VSG control methods with excellent transient performance.
KW - Distributed generator
KW - oscillation damping
KW - state feedback control
KW - virtual synchronous generator
UR - https://www.scopus.com/pages/publications/85057346278
U2 - 10.23919/IPEC.2018.8508003
DO - 10.23919/IPEC.2018.8508003
M3 - 会议稿件
AN - SCOPUS:85057346278
T3 - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
SP - 775
EP - 781
BT - 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Y2 - 20 May 2018 through 24 May 2018
ER -