一种模拟船舶发电机调速控制系统的设计

摘要

简述了模拟船舶发电机调速系统的原理，用交流电动机替代发电机的原动机，通过 PLC控制变频器调节电动机的转速来模拟柴油机的调速特性。论述了调速系统的控制单元PLC和执行单元变频器的硬件设计，并对调速系统的控制流程进行了分析，编制了PLC程序。%This paper studied the theory of simulating marine generator speed control system ,using AC motor to replace the diesel engine of the actual ship ,maintaining the stability of the ship grid frequency by using PLC to adjust the motor speed .The physical design of PLC control unit and executing unit of speed control system was discussed .The control flow of system was analysed ,and the PLC ladder program was designed .