TY  - SER
AU  - Lyu, Xue
AU  - Xu, Zhao
AU  - Wong, Kit Po
AU  - Zhao, Jian
TI  - Advanced Frequency Support Strategy of Photovoltaic System Considering Changing Working Conditions
KW  - Photovoltaic System
KW  - Simultaneously
KW  - Direct-Current (Dc)
ER  -