摘要
舰船中压直流综合电力系统包含大量特种电机和电力电子设备,其模型阶数高、非线性强,电磁暂态仿真计算量大。文章以典型中压直流综合电力系统为对象,首先,介绍了多相发电机整流系统、多相推进电机及其变频器、隔离型DC/DC变流器等组成设备的模型,构建了全系统电磁暂态实时仿真模型。其次,以开关分布平均化和节点数最少为优化目标,提出一种基于元件的启发式系统剖分方法,提高了系统优化剖分计算效率,在消耗较少计算资源的情况下,实现了系统高精度实时仿真。最后,物理试验验证了仿真模型的准确性,并通过对比分析,验证了所提出剖分方法的高效性。
The vessel MVDC integrated power system contains a large number of special motors and power electronic devices,which bear the characteristics of high order,large nonlinearity,and great calculation amount of electromagnetic(EM)transient simulation.Using a typical MVDC integrated power system as the study object,this paper first presents an EM transient real-time simulation model for the whole system based on the established models for the multiphase generator rectifier system,the multiphase propulsion motor and its inverter,the isolated DC/DC converter and other special facilities.With the average distribution of switches and the fewest nodes as the goal of optimization,it then proposes a component-based heuristic system partition method to improve the efficiency of calculation for an accurate real-time simulation of the system in the case of using fewer computational resources.Physical tests have been carried out to verify the simulation model,and the comparative analysis proves the proposed portion method to be feasible and effective.
作者
郝晓亮
付立军
马凡
刘鲁锋
肖润龙
HAO Xiaoliang;FU Lijun;MA Fan;LIU Lufeng;XIAO Runlong(National Key Laboratory of Science and Technology on Vessel Integrated Power System(Naval University of Engineering),Wuhan 430033,Hubei Province,China)
出处
《电网技术》
EI
CSCD
北大核心
2021年第3期1100-1108,共9页
Power System Technology
基金
国家自然科学基金项目(51607185,51877211)
国防973项目(613294)。
关键词
中压直流综合电力系统
电磁暂态模型
RT-LAB
实时仿真
系统剖分
MVDC integrated power system
electromagnetic transient model
RT-LAB
real-time simulation
system partition method