Self-adaptive transduction system and method based on LNG cold energy supply

The invention provides a self-adaptive transduction system and method based on LNG cold energy supply. The system comprises an upstream LNG gasifying subsystem and a transduction subsystem; and the transduction subsystem further comprises a cold accumulation unit used for storing surplus cold energy obtained after cold energy of refrigeration media is transmitted by a first heat exchanger. The system has the beneficial effects that a large amount of cold energy released during LNG gasifying can be effectively used and can be used for various commercial complexes, like ice and snow worlds, airconditioners and refrigeration storages; according to the cold requirement changes of downstream commercial complexes, through cooperative work of a cold accumulation circular loop and a cold accumulation branch in the transduction system, the cold accumulation work mode and the cold consumption work mode of the transduction system run periodically and alternately, stable and continuous upstream LNG gasifying can be maint