Introduction  The 2.6 GW photovoltaic power plant project in Al Shuaibah, Saudi Arabia is located in a desert area. Since the release of Saudi Arabia's "2030 vision", new energy has become an important part of the plan. The project is equipped with the most advanced N-type double-sided photovoltaic modules and horizontal single-axis automatic tracking brackets, making it the largest photovoltaic power plant in the world. This project has set up a business card for China's photovoltaic industry, and is a benchmark for photovoltaic equipment to go global.

  Method  Due to the higher requirements for cleaning and maintenance of photovoltaic modules in the desert, photovoltaic cleaning robots were used to improve photovoltaic power generation efficiency and reduce operation and maintenance costs.

  Result  Photovoltaic cleaning robots come in various forms, and automatic cleaning robots are most suitable for large photovoltaic power plants. However, in the practical application of horizontal single-axis brackets, a specific design optimization is required to achieve smooth operation.

  Conclusion  In this paper, the application practice of matching an intelligent cleaning machine is deeply studied for the optimization design of the horizontal single-axis bracket without disconnecting from the bridge of the photovoltaic power station project, providing a reference for the design of intelligent cleaning and maintenance machines of photovoltaic power stations in desert areas.