基于LCL滤波器的双馈风机网侧变流器谐波抑制研究  

Research on Harmonic Suppression Method of Grid-Side Converter of DFIG Based on LCL Filter

作　　者：侯超群 柳付军 郭艺丹 胡瑞 HOU Chaoqun;LIU Fujun;GUO Yidan;HU Rui(School of Electrical Technology,Anhui Vocational College of Defense Technology,Lu′an,Anhui 237000,China;Shanghai Heze Electric Power Engineering Design&Consulting,Shanghai 200082,China;School of Mechanical and Electrical Engineering,Chuzhou University,Chuzhou,Anhui 239000,China)

机构地区：[1]安徽国防科技职业学院电气技术学院,安徽六安237000 [2]上海合泽电力工程设计咨询有限公司,上海200082 [3]滁州学院机械与电气工程学院,安徽滁州239000

出　　处：《自动化应用》2024年第13期138-140,共3页Automation Application

基　　金：安徽省2022年质量工程项目工业机器人专业教学资源库(2022jxzyk011)。

摘　　要：针对双馈风机网侧变流器在电力系统中产生的谐波问题,提出了一种基于LCL滤波器的谐波抑制方法。该方法提出了网侧变流器等效阻抗模型,优化LCL滤波器的控制策略,有效降低了双馈风机输出电流谐波含量,提高了电能质量。结果表明,该方法不仅可行有效,而且适应性强,能够在不同运行条件下稳定运行。该研究为双馈风机网侧变流器谐波抑制提供了新的解决方案,有助于提升风力发电系统的整体性能和稳定性,对于电力系统的安全经济运行具有积极意义。This paper proposes a harmonic suppression method based on LCL filter to solve the harmonic problem caused by the grid-side converter(GSC) of DFIG in power system.This method proposes an equivalent impedance model of the GSC,optimizes the control strategy of the LCL filter,effectively reduces the harmonic content of the output current of the DFIG,and improves the power quality.The results show that this method is not only feasible and effective,but also highly adaptable and can operate stably under different operating conditions.The research in this apaper provides a new solution for harmonic suppression of GSC of DFIG,which helps to improve the overall performance and stability of the wind power system and has positive significance for the safe and economical operation of the power system.

关 键 词：双馈风机 网侧变流器 等效阻抗模型 谐波抑制 

分 类 号：TM77[电气工程—电力系统及自动化]