Photovoltaic power station fault monitoring alarm system

The invention provides a photovoltaic power station fault monitoring and alarming system, and relates to the technical field of photovoltaic power station operation and maintenance. The photovoltaic power station fault monitoring alarm system comprises a data acquisition unit, the data acquisition unit comprises a plurality of monitoring devices, the monitoring devices are a plurality of different sensors, each sensor obtains data information of a corresponding photovoltaic device, the signal output end of each sensor is electrically connected with a signal conditioning circuit, and the signal conditioning circuit is electrically connected with the data acquisition unit. The signal conditioning circuit optimizes signals output by the sensor, and the output end of the signal conditioning circuit is electrically connected with a communication interface. Various faults of the photovoltaic power station are subjected to grade classification in the data processing unit, alarms with different priorities are sent ou