Method for operating a thermal potential storage system, thermal potential storage system, control program and computer-readable medium

摘要

The invention relates to a method for operating a thermal potential storage system (20) for storing electrical energy while converting it into thermal energy, in which low-temperature heat is removed from the low-temperature storage device (22) by means of a working medium in a loading process using a heat pump process and by means of the the first compressor / turbine arrangement (26) is raised with the supply of electrical energy by compressing the working medium from low pressure to high pressure in high-temperature heat, with a higher temperature level than the low-temperature heat, which is stored in the high-temperature storage device (28), and in a discharging process using a thermal power process, the stored high-temperature heat is removed from the high-temperature storage device (28) by means of the working medium and by means of the first compressor / turbine arrangement (26) with the release of electrical energy in a des Voltage of the working medium is converted from high pressure to low pressure in low-temperature heat, which is stored in the low-temperature storage device (22). A high level of operational flexibility and cost efficiency can be achieved in that the thermal potential storage system (20) on the low-pressure side (38) between the second compressor / turbine arrangement (32) and the low-temperature storage device (22) is in flow connection with the environment