光伏功率调节比例谐振二阶谐波抑制方法  

Photovoltaic Power Conditioning System Controlling Second-order Harmonic Wave with a Proportional-resonant Controller for

作　　者：游国栋[1] 徐涛 王军 沈延新 苏虹霖 李继生[1] 侯晓鑫 YOU Guodong;XU Tao;WANG Jun;SHEN Yanxin;SU Honglin;LI Jisheng;HOU Xiaoxin(College of Electronic Information and Automation,Tianjin University of Science&Technology,Tianjin 300222,China)

机构地区：[1]天津科技大学电子信息与自动化学院

出　　处：《天津科技大学学报》2020年第1期76-80,共5页Journal of Tianjin University of Science & Technology

基　　金：天津市科技支撑重点项目(17YFZCNC00230;13JCZDJC29100);天津科技大学实验室创新基金资助项目(1902A030)

摘　　要：在光伏发电并网系统中,逆变器会产生一个两倍基频的二阶谐波,其存在会影响工作点并恶化最大功率点跟踪(maximum power point tracking,MPPT),本文设计了一种新的光伏功率调节系统(power conditioning systems,PCS)的二阶谐波抑制技术,采用一个具有前馈补偿技术的比例谐振(proportional-resonant,PR)控制器,在Matlab环境下进行建模仿真,结果表明该方法可以准确提取并抑制二阶谐波分量,优化系统结构.In the grid-connected system of photovoltaic(PV),inverters create a second-order harmonic wave twice the fundamental frequency,which can affect the operating points of the PV array and deteriorate the operation of the maximum power point tracking(MPPT).A new second-order harmonic wave controlling technique for the PV power conditioning system(PCS)was developed in this research.A proportional-resonant(PR)controller with feed-forward compensation was adopted and simulated in MATLAB environment.Simulation results show that the method could truely extract and restrain the second-order harmonic wave and optimize the PV generation system.

关 键 词：光伏 功率调节系统 比例谐振控制器 二阶谐波 

分 类 号：TK51[动力工程及工程热物理—热能工程]