Intelligent smoke exhaust system suitable for offshore converter station and control method

The invention provides an intelligent smoke exhaust system suitable for an offshore converter station and a control method, a corridor in the offshore converter station of the offshore converter station is divided into a plurality of independent smoke exhaust subareas, a smoke blocking vertical wall is arranged between every two adjacent independent smoke exhaust subareas, and an electric smoke exhaust valve and a smoke detector are arranged in each smoke exhaust subarea; the electric smoke exhaust valve is connected with the smoke exhaust fan; a control system is arranged in the offshore converter station, the control system is respectively connected with a fire alarm system and a video monitoring system through network cables, the control system is in signal connection with a remote monitoring background, and the control system is connected with a smoke detector; the smoke exhaust fan is provided with a 280 DEG C smoke exhaust fireproof valve, and the 280 DEG C smoke exhaust fireproof valve is in line conne