With the rapid development of science and technology, the global energy situation is becoming increasingly tense. The photovoltaic industry (160GW) has huge market space for development. The subsidiaries of SAIC Motor have built large-area solar photovoltaic carports within them. The development potential of solar photovoltaic carports of the subsidiaries of the group is great in the process of continuous development of photovoltaic power generation. Currently, most of SAIC Motor's photovoltaic projects are photovoltaic carport projects distributed throughout the country. Snow cover is relatively serious in East China, and traditional snow removal methods are used: 1) Sprinkling salt or spraying snow melting agent has an effect per unit area. Due to the large area of the photovoltaic array, the snow removal effect is not good. 2) The manual snow removal method is easy to achieve on the ground. However, the photovoltaic carport array is high and steep, and climbing operations are required when removing snow, making snow removal difficult and inefficient. What is more serious is that when the snow on the photovoltaic array melts, a large amount of ice will be generated. When the ice falls, it will cause certain damage and property damage to the finished vehicles below. Snow on photovoltaic panels will also affect power generation efficiency. Based on the needs of the photovoltaic power generation industry, this project has developed automatic heating snow removal control technology for photovoltaic panels, breaking traditional technologies such as manual snow removal, salt spraying or snow-melting agent spraying, and solving the problem of difficulty in snow removal and poor snow removal effect in traditional snow removal methods. Bottleneck problems such as low snow removal efficiency, and affecting photovoltaic power generation efficiency, the main innovation results are as follows: 1) It is proposed to adopt the control technology of using a spoke-type pressure sensor and a controller to use the spoke-type pressure sensor installed on the spare photovoltaic board. The gravity signal after the snow pressure conversion on the flat plate is sent to the controller. The controller calculates the snow volume through the snow pressure signal and the area of the photovoltaic board, and informs the grid-connected bidirectional inverter to automatically adjust the forward current according to the snow volume. 2) Propose the adoption of photovoltaic panel automatic heating snow removal control technology. When the snow pressure reaches a preset threshold, the pressure sensor sends a signal to the controller, and the controller switches the grid-connected bidirectional inverter to the energy storage state and converts the alternating current into direct current. Output, apply forward voltage to both ends of the photovoltaic array, so that a certain amount of heat is generated on the photovoltaic panel for snow removal. 3) Adopt snow pressure and density, photovoltaic panel heating power, tilt angle adjustment and control time Snow removal technology uses the tilt angle of photovoltaic panels to detect snow pressure. When the pressure generated by the snow reaches a preset threshold value, calculate the snow volume through the snow pressure signal and the area of the photovoltaic panel, and according to the size of the snow volume, apply a forward voltage to both ends of the photovoltaic array to generate a certain amount of heat on the photovoltaic panel, change the void ratio of the snow and the ldquo; balance height of the snow water under capillary action, and achieve the effect of promoting the snow slide; when the thickness of the snow is greater than the ldquo; balance height rdquo; under its own density, the sliding force generated by the gravity of the snow on the tilted photovoltaic panel is used to finally make the snow slide out of the photovoltaic panel without external force. The project results have independent intellectual property rights and have obtained 1 invention patent, and the other 1 invention patent has been accepted. This project provides an effective solution to the problem of snow removal in winter for large photovoltaic power stations around the world. Based on the above innovative technologies, the problem of difficulty in manual snow removal is solved, the problem of snow affecting photovoltaic power generation is solved, the problem of ice in the gap between photovoltaic modules in carports in the finished truck area is solved, and the problem of photovoltaic power station construction in many areas during the snowy season is effectively solved. The project results have saved 3.8 million yuan in funds in the past three years, forming an automatic heating and snow removal control technology system for photovoltaic panels for the global photovoltaic industry. SAIC Motor has built nearly 200MW photovoltaic power stations, with high operation and maintenance pressure and high costs. There is an urgent need for technical means to reduce costs and increase efficiency. In addition, with the development of the domestic photovoltaic industry, the overall scale of photovoltaic power stations continues to expand, and there are broader market application and promotion prospects.