Abstract: On the basis of elaborating the principle of frequency conversion technology,this paper interprets the successful application cases of frequency conversion technology in oilfield seawater pumps,air conditioning,and fan systems,aiming to improve equipment energy efficiency,reduce operating costs,and maximize economic,social,and environmental. Through comprehensive analysis of the cases,the application value of frequency conversion technology is fully demonstrated,providing basis for expanding the application scope of frequency conversion technology,promoting energy-saving transformation,technological innovation,environmental protection and other related work in the future.

Key words: frequency conversion technology, practical cases, energy-saving and emission reduction