摘要
由于船舶运行的特殊性和负载波动的复杂性,严重影响船舶电力系统的稳定性,因此引入了能量存储技术,降低电网的波动。根据发电机和锂电池的状态空间模型,建立了含锂电池储能的船舶电力系统,并提出了一种基于模型预测控制的船舶电力系统。在含有负载波动的情况下,使发电机和锂电池的输出能够稳定跟随负载的变化,从而满足负载的需求。并将整个系统在Matlab/Simulink中进行实例仿真,仿真结果表明,在模型预测控制下的船舶电力系统能够很好地满足负载波动需求,明显改善船舶电力系统的稳态性能,增强船舶电网的稳定性。
Because of the particularity of ship operation and the complexity of load fluctuation, the stability of ship power system is seriously affected. Based on the state space model of generator and lithium battery, a ship power system with lithium battery energy storage is established, and a ship power system based on model predictive control is presented. In the case of load fluctuations, the output of the generator and lithium battery can be stabilized to follow the change of the load, so as to meet the load demand. And the whole system is simulated in Matlab/ Simulink, the simulation results show that the prediction model of ship power system under the control of the load fluctuation can well satisfy the demand, improve the steady-state performance of ship power system, and enhance the stability of ship power system.
出处
《船电技术》
2017年第8期43-48,共6页
Marine Electric & Electronic Engineering
关键词
船舶电力系统
储能技术
发电机
锂电池
模型预测控制
ship power system
energy storage technology
generator
lithium battery
model predictive control
