Intelligent generator hydrogen cooling system and control method

The invention relates to an intelligent generator hydrogen cooling system and a control method, belongs to the technical field of hydrogen cooling of hydrogen-cooled generator sets. Based on PLC (programmable logic controller) control, the purity and pressure in a generator are automatically maintained through a generator pressure control mode, a generator gas purity control mode and a generator gas replacement mode, it is ensured that the generator runs safely and economically, and meanwhile regeneration and purification are provided for hydrogen of the generator and related systems. When the generator needs hydrogen removal, hydrogen can be recycled, and the hydrogen production cost of a power plant is reduced to the maximum extent. Micro-vacuum of the generator is controlled through the replacement mode, consumables needed by replacement of the generator are guaranteed to the maximum extent, qualified replacement time is saved, working intensity of operators is relieved, and time is saved for commissioning