Solar energy is a widely distributed and inexhaustible "green" renewable new energy,which is one of the best solutions to the energy crisis in the world. However, the conversion efficiency of photovoltaic cells in large-scale solar applications is not high, and the cost is very high. Therefore,
In this paper, we propose a wellhead unloading protection system for a multi-well pumping unit with the functions of multi-pumping, energy efficiency, andintelligent control, and address the painful issue of having to shut down the entire well group for maintenance when the single well fails or
