Single-stage Grid-connected Photovoltaic Generation Takes Part in Grid Frequency Regulation for Electromechanical Transient Analysis
- Resource Type
- Conference
- Authors
- Yan, Gangui; Hu, Wenbo; Jia, Qi; Zhang, Shanfeng
- Source
- 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019 IEEE. :1467-1472 May, 2019
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Frequency control
Inverters
Transient analysis
Voltage control
Photovoltaic systems
droop control strategy
frequency regulation
grid-side inverter
single-stage grid-connected photovoltaic generation
virtual inertia control strategy
- Language
- ISSN
- 2378-8542
In order to solve the problem of insufficient frequency regulation capacity caused by the large-scale grid-connected photovoltaic (PV) generation, the active power-frequency droop control strategy and virtual inertia control strategy are proposed for single-stage grid-connected PV generation for electromechanical transient analysis. By modifying the control structure of the inverter, PV generation actively got involved in frequency regulation. The simulation results indicate that: the inverter can control the PV array to increase or decrease the active power generated according to the set droop control and virtual inertia control, so as to suppress the drop or rise of the grid frequency; in the dynamic process of frequency, the incremental power of PV generation induced by the dynamic action of the voltage vector of grid connection point is dependent on its virtual inertia control.