基于高低通滤波器的直驱风机协调调频控制策略  

Coordination Frequency Control Strategy for Direct-driven Wind Turbine Utilizing High-pass and Low-pass Filters

作　　者：查雨欣 钱阳 刘柏岑 张钰 ZHA Yuxin;QIAN Yang;LIU Baicen;ZHANG Yu(State Grid Jiangsu Jinhu Power Supply Company,Huaian 211600,China;State Grid Jiangsu Liyang Power Supply Company,Changzhou 213300,China;State Grid Jiangsu Rugao Power Supply Company,Rugao 226500,China)

机构地区：[1]国网江苏省电力有限公司金湖县供电分公司,江苏淮安211600 [2]国网江苏省电力有限公司溧阳市供电分公司,江苏溧阳213300 [3]国网江苏省电力有限公司如皋市供电分公司,江苏如皋226500

出　　处：《南京工程学院学报(自然科学版)》2024年第4期85-92,共8页Journal of Nanjing Institute of Technology(Natural Science Edition)

摘　　要：随着大规模风机并入电网,电网的稳定性逐渐降低,频率的波动幅度变大.为了提升电网的惯性,增强稳定性,文章分析了传统下垂控制的动态响应,提出一种基于高低通滤波器的协调控制调频控制策略,有效利用母线电容响应和风机转子各自释放能量的特点来参与电网调频,提高了系统的惯性,避免了传统控制下电容电压的持续跌落.在Matlab/Simulink中搭建永磁直驱风机单机并网模型,仿真验证了协调控制策略的有效性以及对系统频率和母线电压动态特性的改善.As the large-scale wind turbines were seamlessly integrated into the power grid,the stability of the grid gradually diminished,leading to the heightened frequency fluctuations.To augment the inertia of the power grid and enhanced its stability,this paper meticulously analyzed the dynamic response associated with the traditional droop control mechanisms.Furthermore,it proposed a sophisticated coordinated frequency control strategy that leverages both high-pass and low-pass filters.This approach effectively utilized the intrinsic characteristics of bus capacitance response,alongside the energy dissipation from wind turbine rotors,to actively engage in frequency regulation.It effectively enhanced system inertia and alleviated ongoing voltage drops within capacitors that are commonly encountered under conventional control paradigms.A model for a permanent magnet direct drive wind turbine connected to the grid was developed using Matlab/Simulink,which facilitated the simulation and validation of the coordinated control strategy's effectiveness,as well as improvements in the dynamic characteristics of system frequency and bus voltage.

关 键 词：下垂控制 直驱式 永磁同步风力发电机 频率响应 协调控制 

分 类 号：TM614[电气工程—电力系统及自动化]