Seasonal energy storage ground source heat pump refrigerating and heating method and system

The invention discloses a seasonal energy storage ground source heat pump refrigerating and heating method and system. In summer, a ground source heat pump system is adopted to meet the cold supply requirement of a building; the ground source heat pump system is adopted in winter to meet the building heating requirement; an existing seasonal energy storage ground source heat pump technology is improved, a double-effect domestic hot water system and an electricity price difference energy storage system are additionally arranged, heat reservoir energy is fully utilized, the domestic water supply efficiency is improved, and redundant energy emission is reduced; and the electricity price difference energy storage system can perform energy storage auxiliary refrigeration and heating on the electricity price difference in the peak-valley time, and the energy use cost is greatly reduced. 本发明为季节蓄能地源热泵制冷采暖方法及其系统，在夏季采用地源热泵系统满足建筑供冷需求；在冬季采用地源热泵系统满足建筑供暖需求；并且现有季节蓄能地源热泵技术进行改进，通过增加双效生活热水系统以及电价差蓄能系统，对热库能量进行充分利用，提高生活用水供给效率，减少冗