TY - GEN
T1 - Pre-synchronization method for grid-connection of virtual synchronous generators based micro-grids
AU - Wu, Jiaqi
AU - Zhuo, Fang
AU - Wang, Zhenxiong
AU - Yi, Hao
AU - Yu, Kefan
N1 - Publisher Copyright:
© assigned jointly to the European Power Electronics and Drives Association & the Institute of Electrical and Electronics Engineers (IEEE).
PY - 2017/11/6
Y1 - 2017/11/6
N2 - Since the photovoltaic power generation, wind power and other distributed power supply are volatile and random, they will affect the stability of the grid frequency. In order to improve the voltage and frequency in micro-grid, the virtual synchronous generator control strategy is proposed for inverter control, which can emulate the behavior of synchronous generator, decrease rate of change of frequency and provide dynamic power support to grid. However, when virtual synchronous generators based micro-grids switch from islanded mode to grid-connected mode, inrush current may deteriorate the power quality of micro-grids and damage the device in micro-grids. This paper discusses the problem of pre-synchronization and presents a new pre-synchronization method for grid-connection of virtual synchronous generators based micro-grids. Accordingly, parameter matching between virtual inertia and capacity among virtual synchronous generators is analyzed in detail. Simulation results show the validation of the proposed method.
AB - Since the photovoltaic power generation, wind power and other distributed power supply are volatile and random, they will affect the stability of the grid frequency. In order to improve the voltage and frequency in micro-grid, the virtual synchronous generator control strategy is proposed for inverter control, which can emulate the behavior of synchronous generator, decrease rate of change of frequency and provide dynamic power support to grid. However, when virtual synchronous generators based micro-grids switch from islanded mode to grid-connected mode, inrush current may deteriorate the power quality of micro-grids and damage the device in micro-grids. This paper discusses the problem of pre-synchronization and presents a new pre-synchronization method for grid-connection of virtual synchronous generators based micro-grids. Accordingly, parameter matching between virtual inertia and capacity among virtual synchronous generators is analyzed in detail. Simulation results show the validation of the proposed method.
KW - Distributed power
KW - Microgrid
KW - Parallel operation
KW - Voltage Source Inverters (VSI)
UR - https://www.scopus.com/pages/publications/85042071762
U2 - 10.23919/EPE17ECCEEurope.2017.8099309
DO - 10.23919/EPE17ECCEEurope.2017.8099309
M3 - 会议稿件
AN - SCOPUS:85042071762
T3 - 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
BT - 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
Y2 - 11 September 2017 through 14 September 2017
ER -
