Improvement and Semi-Physical Simulation Study of Vector Control of Ship Load Motors

In order to address the issues of slow speed response, high overshoot and poor robustness in the speed sensorless vector control system of a ship loaded three-phase asynchronous motor, the traditional space vector control research approach has been improved by means of improvements to the traditional speed discrimination system research model. In this study, we propose an enhancement of the speed sensorless vector control of ship propulsion motors. This enhancement is based on the Model Reference Adaptive System (MRAS) and Popov super stability theory, and is implemented in the MATLAB-Simulink environment. We also constructed a speed recognition system, the purpose of which is to simulate and analyze the parameters of ship propulsion motors under various working conditions, including speed, torque, and flux linkage.