虚拟同步发电机带脉冲负载运行特性研究  

Operating characteristics of virtual synchronous generator with pulse load

作　　者：周美权 徐晔 黄克峰 姚卫波 崔灏然 ZHOU Meiquan;XU Ye;HUANG Kefeng;YAO Weibo;CUI Haoran(College of Defense Engineering,Army Engineering University of PLA,Nanjing 210007)

机构地区：[1]陆军工程大学国防工程学院,南京210007

出　　处：《电气技术》2022年第6期59-68,共10页Electrical Engineering

摘　　要：为研究虚拟同步发电机(VSG)带脉冲负载的运行规律,提高VSG带脉冲负载性能,本文搭建VSG带脉冲负载仿真模型,分析VSG参数对系统运行特性的影响规律,以及脉冲负载占空比D、峰值功率P和开关周期T对VSG运行性能及输出电能质量的影响规律。通过对比分析不同有功环控制策略,针对脉冲负载输出特性选择最佳VSG有功环控制策略,并采用比例谐振(PR)控制消除传统比例积分(PI)控制之间存在耦合问题的影响,从而提高脉冲负载作用下VSG的电能输出质量。In order to study the operating rules of virtual synchronous generator(VSG)with pulsed load and improve the performance of the inverter with pulsed load,the simulation modeling for the VSG with pulsed load system are established.On the basis of simulation,the influence of VSG parameters,pulse load duty cycle D,peak power P and switching period T on system operating characteristics are analyzed.By comparing and analyzing different active-loop control strategies,the best VSG active-loop control strategy is selected for the pulsed load output characteristics.Proportional resonant(PR)control is adopted to eliminate the influence of coupling problems existing between traditional proportional integral(PI)control to improve the power output quality of VSG under the action of pulsed load.

关 键 词：虚拟同步机(VSG) 微电网 脉冲负载 运行特性 比例谐振(PR)控制 

分 类 号：TM341[电气工程—电机]