Recently, CSIC 712 provided electric propulsion devices for the large-scale test platform built by Barge Heavy Industries. Recently, the “large-scale test platform†of the national key scientific research project was successfully launched in the shipbuilding industry, and the mooring test was successfully completed. 712 relies on the long-term accumulated technical advantages to successfully complete the development of electric propulsion systems consisting of permanent magnet propulsion motors and propulsion inverters, meeting the technical requirements of the test platform. The test platform has very high requirements for vibration and noise of all devices, especially the power system. According to the special requirements of the test platform, the institute has comprehensively optimized and designed multiple indicators from the system level to the propulsion motor, inverter and its control strategy. The advanced torque ripple suppression algorithm enables the system to achieve optimal performance and is highly recognized by customers. In recent years, the Institute has successfully developed a low-vibration and noise electric propulsion system for ships with low vibration and noise requirements, and has formed a series of products such as marine inverters and propulsion motors. At the same time, it can provide optimal solutions according to customers' special needs. The solution meets the needs of users of low-vibration noise electric propulsion systems for marine megawatts. Synchronous Motor, like induction motor, is a commonly used AC motor. Synchronous motor is the heart of power system, it is a set of rotating and static, electromagnetic and mechanical changes in one motion, electric energy and mechanical energy conversion element, its dynamic performance is very complex, but also greatly affect the dynamic performance of the whole power system dynamic performance. The characteristics are: steady state operation, the rotor speed and the frequency of the grid has a constant relationship between n=ns=60f/p, where f is the grid frequency, P is the pole of the motor, NS is called synchronous speed. If the frequency of the grid is constant, the speed of the synchronous motor is constant at steady state, independent of the magnitude of the load. Synchronous motor is divided into synchronous generator and synchronous motor. The alternator in modern power plant is mainly synchronous generator. Synchronous Motor Stack,Garage Door Motor Core,Garage Door Motor Lamination,Electrical Stell Laminations YUYAO YUANZHONG MOTOR PUNCHING CO.,LTD. , http://www.yuyaoyuanzhong.com