摘要
文章引入虚拟同步发电机技术,针对有功频率控制、电压无功控制分别进行优化,引入了功频调节器和励磁调节器使得岸电电源具有旋转惯性和阻尼特性,解决了逆变器动态响应过快的问题,并且在控制环节中加入了预同步控制,保证了并网前电压幅值、相位和频率保持一致,减小了并网时的冲击电流。在Matlab/Simulink平台上搭建了船舶岸电并网控制系统能够实现船舶供电电源的无缝切换,并仿真验证了虚拟同步机策略在岸电并网时的可行性。
The virtual synchronous generator technology is introduced to optimize the active frequency control and voltage and reactive power control respectively.The power frequency regulator and the excitation regulator are introduced to make the shore power supply have rotational inertia and damping characteristics,and the dynamic response of the inverter is solved.The problem of fast,and the pre-synchronization control is added to the control link to ensure that the voltage amplitude,phase and frequency before grid connection are consistent,and the inrush current during grid connection is reduced.The ship shore power control system is built on Matlab/Simulink,which can realize the seamless switching of the ship's power supply,and the simulation verifies the feasibility of the virtual synchronous machine strategy when the shore power is connected to the grid.
作者
王含瑜
WANG Hanyu(School of Logistics Engineering,Shanghai Maritime University,Shanghai 201306,China)
出处
《机电设备》
2020年第5期73-77,共5页
Mechanical and Electrical Equipment
关键词
船舶岸电系统
虚拟同步机
功频调节器
励磁调节器
预同步控制
ship shore power system
virtual synchronous machine
power frequency regulator
excitation regulator
pre-synchronization control
