并联式船舶气电混合动力系统动态加速性能仿真

Simulation on Dynamic Acceleration Performance of Parallel Marine Gas Electric Hybrid Power System

为提高并联式船舶气电混合动力系统的动态加速性能,设计新的变频器控制策略,充分利用电机的快速响应性。仿真结果表明,采用新的变频器控制策略使电机更早地投入加速过程,从而降低气体主机在加速过程中的功率负荷,有效提升系统的动态响应性能。应用变频器切换控制策略的气电混合动力系统较纯气体机动力系统在加速过程中有着更好的动态性能,主机加速到额定转速的时间最多可缩短32.81%,热力负荷可降低4.28%。

In order to improve the dynamic acceleration performance of parallel marine gas electric hybrid power system,a new frequency converter control strategy was designed to make full use of the fast response of motor.The simulation results show that the adoption of new frequency converter control strategy can realize earlier acceleration process of the motor,so as to reduce the power load of the gas main engine in the acceleration process and efctively improve the dynamic response performance of the system.The gas eletric hybrid power system with frequency converter switching control strategy has better dynamic performance than the pure gas power system in the acceleration process.The time for the main engine to accelerate the rated speed can be shortened by 32.81%and the thermal load can be reduced by 4.28%.