Monitoring method and system of fast frequency response rate of photovoltaic power station based on multiple data monitoring Provisionally Accepted

Xiaodi Qin^1*

• ¹State Grid Corporation of China (SGCC), China

To ensure the stability and reliability of the power network, photovoltaic power stations need to have the ability to quickly respond to the frequency change of the power grid. This paper studies a method and system of fast frequency response rate monitoring of photovoltaic power stations based on multiple data monitoring. Photovoltaic power station fast frequency response rate monitoring system, including The sensor data acquisition module and the monitoring and evaluation index data analysis module, can comprehensively analyze the monitoring and evaluation index data by obtaining the monitoring and sensing data of the photovoltaic power station within a preset period, and calculate the rate comprehensive monitoring index, to monitor the response rate of the photovoltaic power station more accurately. It solves the problem that it is difficult to accurately monitor the response rate of photovoltaic power stations in the existing technology. Finally, based on the proposed method and system, a frequency step disturbance test is carried out in a power station in China. The actual frequency disturbance test is simulated and the anti-disturbance performance is verified to verify the effectiveness of the proposed method.