Energy-saving technology and method of hydraulic pumping unit: a review

This is the authors' abstract. We don't add key points for this paper.

In recent years, the application of hydraulic pumping unit in energy saving and consumption reduction shows many advantages and development potential. It is very important to adopt appropriate methods to save energy for hydraulic pumping unit. So far, the research work in this field has been reported in many articles, but they are scattered, and there is no summary of the energy-saving technology and method of hydraulic pumping unit. It is necessary to summarize the latest development of this energy-saving technology. In this article, the energy-saving technology of hydraulic pumping unit is comprehensively reviewed, aiming to clarify the latest progress of energy-saving technology and summarize the potential challenges in the research and application of energy-saving technology. At the same time, this article mainly summarizes the main energy-saving principles and energy-saving technologies in hydraulic pumping units, as well as the application of simulation software in the digital model of hydraulic pumping units. By combing the development and improvement of hydraulic pumping unit, the blank field and future research direction are put forward, which provides reference for technicians and researchers in related industries to develop new energy-saving technologies of hydraulic system.