永磁同步风力发电机的VSG参数自适应控制  

Adaptive Control of VSG Parameters for Permanent Magnet Synchronous Wind Generator

作　　者：于海洋 李岚[1] 靳杰 冯胜洲 YU Hai-yang;LI Lan;JIN Jie;FENG Sheng-zhou(Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学,电气与动力工程学院,山西太原030024

出　　处：《电力电子技术》2021年第7期103-107,共5页Power Electronics

基　　金：山西省自然科学基金(201701D121130)。

摘　　要：在永磁同步风力发电系统中,为了克服网侧变流器采用虚拟同步发电机(VSG)控制策略时,由于虚拟转动惯量和虚拟阻尼系数恒定导致频率不能灵活控制这一缺点,将自适应控制应用到网侧变流器的VSG控制策略中。首先介绍永磁同步风力发电系统总体的控制策略,建立网侧变流器VSG控制模型;在此基础上分析风速和负载的变化对系统功率和频率的影响,根据系统频率的变化实时调节算法中的参数,使参数可以在线修正。最后,通过仿真和实验证明所设计的控制策略能够减小系统频率在振荡过程中的变化幅度,并提高频率动态调节性能。In order to overcome the shortcoming that the frequency cannot be flexibly controlled due to the fixed virtual moment of inertia and virtual damping coefficient of virtual synchronous generator(VSG)when the VSG control strategy is applied to the grid side converter of permanent magnet synchronous wind power generation system,adaptive control is applied to the VSG control strategy of grid side converter.Firstly,the overall control strategy of permanent magnet synchronous wind power generation system is introduced,and the VSG control model of grid side converter is established.On this basis,the influence of the change of wind speed and load on the power and frequency of system is analyzed,the parameters in the algorithm can be adjusted in real time according to the frequency of the system,so that the parameters can be corrected online.Finally,the simulation and experimental results show that the designed control strategy can reduce the variation of system frequency in the process of oscillation,and improve the frequency dynamic regulation performance.

关 键 词：永磁同步风力发电机 虚拟同步发电机 自适应控制 

分 类 号：TM351[电气工程—电机]