▎ 摘　　要

NOVELTY - The utility model model claims a transformer substation de-icing power supply control system on photovoltaic direct current microgrid, photovoltaic direct current microgrid comprises a solar panel, the solar controller respectively connected with the solar panel and the storage battery, the solar controller is electrically connected with the inverter, the inverter is electrically connected with a building roof snow-melting ice-removing power supply controller, the building roof snow-melting ice-removing power supply controller respectively electrically connected with a heating structure, an environment monitor and a rain and snow sensor, the heating structure is set on the building roof, the power input end of the building roof snow-melting and ice-removing power supply controller is electrically connected with the commercial power; graphene the direct current power supply of the heating film without electromagnetic pollution, energy saving, easy operation and waterproof, suitable for laying on the substation roof concrete the structure layer, for melting snow and removing ice; using solar energy to store electric energy, which not only ensures that the transformer substation building roof snow melting and de-icing purposes, ensures the reliability of the electric device in the substation room, but also saves the energy.