In recent years, my country’s annual industrial production value has continued to increase, but the energy consumption ratio has remained high. The high energy consumption ratio has become a bottleneck restricting my country’s economic development. For this reason, the country has invested a lot of funds to support energy-saving and consumption-reducing projects, including high-voltage frequency conversion speed regulation. Technology has become more and more widely used in all walks of life. It can not only improve the process, extend the service life of equipment, increase work efficiency, etc., but the most important thing is that it can "save energy and reduce consumption", which has been recognized by the majority of users. And deeply concerned. 　　 The high-voltage variable frequency speed regulator developed and produced by Wuhan New Energy Research Institute has completely independent intellectual property rights, which is suitable for the characteristics of domestic power grids and conforms to the usage habits of domestic users. It has the advantages of low noise, good speed control performance, low harmonic content, high efficiency, good reliability, light weight, small size, flexible layout, etc., and is energy-saving, power-saving, labor-saving, labor-saving, automatic control, remote monitoring, etc. The effect is remarkable. It can be widely used in ship propulsion systems, large-scale steel rolling drive systems, petroleum, petrochemical, cement, coal and other industries.