LCL滤波的风力发电网侧变流器不同控制结构下的性能研究

被引:6
作者
张宪平 [1 ,2 ]
李亚西 [1 ]
许洪华 [1 ]
机构
[1] 中国科学院电工研究所
[2] 中国科学院研究生院
基金
国家高技术研究发展计划(863计划);
关键词
LCL滤波器; 电网侧变流器; 电网侧电流反馈; 变流器侧电流反馈; 阻尼电阻;
D O I
暂无
中图分类号
TM461 [整流器];
学科分类号
080801 ;
摘要
风力发电系统中LCL滤波器的电网侧电流反馈和变流器侧电流反馈都可用作电流闭环控制,但不同的电流反馈控制结构会对变流器产生不同的影响。分别在理想电网无阻尼电阻、非理想电网无阻尼电阻和理想电网有阻尼电阻3种情况下对风力发电网侧变流器进行了分析。建立了电网电压定向的同步旋转dq坐标系下的风力发电网侧变流器数学控制模型,其中PI控制器被用于补偿被控电流的误差。根据推导出的不同电流控制结构下的闭环传递函数,对其进行了根轨迹分析。通过分析及仿真发现变流器侧电流反馈控制结构相对于电网侧电流反馈控制结构控制算法较复杂,但是系统稳定性好,电网电流的谐波畸变率较低,而电网侧电流反馈控制结构尽管抗电网扰动性较强,但调节器参数受到很大限制,系统动态响应速度较慢,稳态精度较低。
引用
收藏
页码:30 / 34
页数:5
相关论文
共 17 条
[1]  
High-performance control of a boost AC-DC PWMrectifier/induction generator system. SATRY J,OJO O,WUZ. IEEE Industry Applications Magazine . 2006
[2]  
Simulation and stability analysis of a 100 kW gridconnected LCL photovoltaic inverter for industry. ZU A O,CHANDRA A. IEEE Power Enginee-ring Society General Meeting . 2006
[3]  
A study on doubly-fed induction machinewith bi-directional AC/DC/AC converter. WUS,ZHOU L B,HUANG S H. the 39th Internatio-nal Uni-versities Power Engineering Conference,2004 . 2004
[4]  
Output filter design for a grid-interconnected three-phase inverter. WANG T C Y,YE Zhihong,SINHA G,et al. IEEE34th Annual Power Electron-ics Specialist Conference . 2003
[5]  
Advanced Control of Active Filters in aBattery ChargerApplication. Bojrup M. . 1999
[6]  
Control of VSC connected to the grid throughLCL-filter to achieve balanced currents. MAGUEED F A,SVENSSON J. IEEE Industry ApplicationsSociety Annual Meeting . 2005
[7]  
Stability of photovoltaic and wind turbine grid-connected inverters for a large set of grid impedance values. Marco Liserre,,Remus Teodorescu,Frede Blaabjerg. IEEE Transactions on Power Electronics . 2006
[8]  
A stable three-phaseLCL-filter based active rectifier without damping. TEODORESCUR,BLAABJERG F,LISERRE M,et al. IEEE 38th IndustryApplications Conference . 2003
[9]  
Amethod to damp oscillations on the input LC filter of current-type AC-DC PWMconverters by usinga virtual resistor. DAHONO P A. The 25th Inter-national Telecommunications Energy Conference,2003 . 2003
[10]  
A novel control to actively damp resonance in input lc filter of a three-phase voltage source converter. Blasko V,Kaura V. IEEE Transactions on Industry Applications . 1997