Method and system for detecting limited power generation state of photovoltaic power station in real time

The invention discloses a method and system for detecting the limited power generation state of a photovoltaic power station in real time.The method comprises the steps: obtaining the real-time irradiance and temperature of an environment monitor, and the real-time data of all inverters, wherein the data comprise the rated capacity, the active power, the operation state, and whether inverters are sample inverter or not; according to the real-time data of all the inverters, calculating the sum of the actual starting capacity of a photovoltaic power station and the active power of the inverters; calculating available generation power TP1 of a template method according to the real-time data of all the template inverters and the actual starting capacity of the photovoltaic power station; according to the real-time irradiance and temperature of the environment monitor, calculating the available generation power TP2 of a meteorological data extrapolation method; carrying out differentiated processing according to t