Permanent magnet propulsion motor for real-ship installation

The reporter learned from the 192nd Research Institute of China Shipbuilding Industry that the first set of permanent-vehicle permanent magnet propulsion motor trains developed by the Institute was successful, marking the first set of permanent magnet propulsion motors with complete independent intellectual property rights in China to be applied to the real-life boats. An important step has been taken, which means that China's ship propulsion technology has reached the world's advanced level.

Permanent magnet propulsion technology is based on a new type of permanent magnet propulsion motor, incorporating permanent magnet motor design technology, modern high-power power electronics technology and computer real-time control technology, etc. In recent years, permanent magnetic material performance, especially magnetic performance, thermal stability The corrosion resistance has been significantly improved, and the preparation and application technology of power electronic devices has gradually matured. The design method, control technology and manufacturing technology of permanent magnet motors have also developed rapidly and rapidly, and the development and application of permanent magnet propulsion technology have been rapidly promoted.

According to reports, permanent magnet propulsion motors use permanent magnet materials and variable frequency speed control devices to replace the excitation, commutation, and pressure regulation of conventional motors. This makes permanent magnet propulsion motors small, lightweight, low noise, and high efficiency. The advantages of simple operation and easy maintenance make it possible to improve the performance of ships. Permanent magnet propulsion motors have become one of the landmark technologies of ships and are the main direction for the development of ship propulsion technology in the future period.

During the 12th Five-Year Plan period, the permanent magnet propulsion system engineering research was completed, long-term reliability tests and real explosion impact tests were conducted, and the application risk of equipment loading was fully released. According to the person in charge of the institute, the permanent magnet motor propulsion system will be popularized and applied in the next few years to realize the leap-forward development of China's ship propulsion technology. (Reporter Liu Zhiwei Correspondent Yu Wei)