船舶岸电变流器用构网型电流矢量控制  

Grid-Forming Vector Current Control of Ship Shore Converter

作　　者：程鹏[1] 王笑睿 刘其辉[2] 张辉 杨盛祥 Cheng Peng;Wang Xiaorui;Liu Qihui;Zhang Hui;Yang Shengxiang(Institute of Energy Power Innovation North China Electric Power University,Beijing 102206 China;School of Electrical and Electronic Engineering North China Electric Power University,Beijing 102206 China;Ningbo Beilun Third Container Terminal Co.Ltd,Ningbo 315800 China)

机构地区：[1]华北电力大学能源电力创新研究院,北京102206 [2]华北电力大学电气与电子工程学院,北京102206 [3]宁波北仑第三集装箱码头有限公司,宁波315800

出　　处：《电工技术学报》2024年第18期5816-5825,共10页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划资助项目(2021YFB2601602)。

摘　　要：船舶岸电变流器作为靠港船舶新的供电电源,可极大地降低船舶靠港时船用同步发电机重质柴油燃烧所带来的NOx、SOx和柴油颗粒等污染物。为保证船舶供电的连续性,岸电侧与船电侧电源多采用预同步方式完成不断电切换,然而可能会因两侧电压非理想的相位差而诱发电流冲击,进而导致岸电与船电电源切换失败。因此,该文首先提出船舶岸电变流器用构网型电流矢量控制策略,其实施于锁相环确定的船电两相同步旋转坐标系中,可在无预同步的前提下完成岸电变流器无冲击自整步并入船电系统,同时通过幅频电压-矢量电流级联闭环完成对船舶岸电变流器输出电压幅值和频率的有效调控。然后,建立构网型电流矢量控制数学模型,并基于此分析控制带宽对控制系统相位稳定裕度、电压跟踪能力以及对负载电流的抗扰能力。最后,通过Satrsim MT 8020硬件在环测试,验证了所提构网型电流矢量控制策略的有效性。As the available power supply for ships in seaports,the shore converter can replace the synchronous generator with heavy diesel,resulting in less NOx,SOx,and other pollutants.The pre-synchronization method is employed for the continuous power supply between the ship generator and the shore converter.However,due to the inrush connecting current produced by the undesired phase angle difference,the shore source fails to replace the ship source.This paper develops the grid-forming vector current control for the shore converter.The proposed control strategy is implemented in the synchronous reference frame of the ship power system determined by the phase-locked loop.The commanded current reference of the shore converter is produced by the voltage amplitude-frequency control loop,and the modulated converter voltage is obtained by the current control loop.With the pulse-width modulation,the seamless self-synchronization between the ship and the shore is achieved with the parallel connection and the voltage forming.On the one hand,the phase-locked loop is employed instead of the active power-frequency synchronization loop,which can generate the phase angle for the frame transformation and voltage modulation without power provision.The pre-synchronization for the quasi-synchronization with the voltage modulation and the parallel connection is avoided.On the other hand,the commanded current reference is generated from the measured voltage amplitude and frequency of the ship power system.This approach can provide the desired active and reactive power to maintain non-steady errors of the voltage amplitude and frequency during the load transfer and islanded supply.Consequently,the grid-forming capability of the ship power system is achieved.Then,a mathematical model of the grid-forming vector current control is established.Accordingly,the system stability,voltage tracking capability,and sensitivity against load variations are analyzed.With the larger equivalent bandwidth coefficient of the grid-forming vector current control,

关 键 词：岸电变流器 构网型 电流矢量控制 船舶电力系统 无缝切换 

分 类 号：TM46[电气工程—电器]