Synchronous electric drive with adaptive speed controller and active power loop

When building a ship’s electric propulsion system, increased requirements are placed on the reliability and efficiency of a rowing electric drive powered by an autonomous supply system with commensurate power. In particular, the issue of limiting and stabilizing the speed, current consumption and, consequently, the power consumption of the propeller engine under conditions of varying load torque is raised. If the control system is unable to meet these requirements, the normal operation of the diesel generator set is disrupted, up to and including shutting down, reducing fuel consumption efficiency and generator life. The best solution is to directly regulate the active power consumption and adapt the control system to changes in the load moment. There has been developed a new, different from the known, structure of the control system for a synchronous electric propeller, which includes an active power circuit and an adaptive speed controller. Based on the structure, a simulation model of a rowing synchronous electric drive has been developed in the Simulink software package of the MatLab graphical simulation environment. A simulation of the operation of a synchronous electric drive in pitching conditions with the propeller exposed, as well as starting, reversing and stopping under normal conditions was performed. A comparative analysis of a synchronous electric propeller drive with the proposed control system and with a classical control system with an external speed loop is performed. The presented simulation results confirm that the developed control system is adaptive to conditions characterized by fluctuations in the load moment during heavy rolling, and also allows you to regulate the active power consumed by the drive and limit its throws in alternating modes.