Method, equipment and medium for load resistance matching of photovoltaic heating system

The invention discloses a method, equipment and a medium for load resistance matching of a photovoltaic heating system. The system comprises a heating element and a photovoltaic element. The method comprises the steps of acquiring illumination state data of an installation area in which the photovoltaic heating system is pre-installed, the maximum output power Pmax of a photovoltaic element, and a working voltage Vmp corresponding to the maximum output power Pmax; determining a corresponding illumination influence coefficient a according to the illumination state data of the installation area; determining a load resistance value R of the photovoltaic heating system according to the maximum power Pmax, the maximum power working voltage Vmp and the illumination influence coefficient a of the photovoltaic element; obtaining an efficiency coefficient lambda of the photovoltaic heating system, and calculating corresponding transition data b according to the efficiency coefficient and the load resistance value RT;