上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (12): 1968-1976.doi: 10.16183/j.cnki.jsjtu.2023.159
王晗1, 王富文2, 周党生3, 施刚1, 张建文1(), 蔡旭1
收稿日期:
2023-04-28
修回日期:
2023-07-19
接受日期:
2023-07-24
出版日期:
2024-12-28
发布日期:
2025-01-06
通讯作者:
张建文,研究员,博士生导师,电话(Tel.): 021-34207001;E-mail: 作者简介:
王 晗(1982—),助理研究员,现从事新能源电力变换控制技术研究.
基金资助:
WANG Han1, WANG Fuwen2, ZHOU Dangsheng3, SHI Gang1, ZHANG Jianwen1(), CAI Xu1
Received:
2023-04-28
Revised:
2023-07-19
Accepted:
2023-07-24
Online:
2024-12-28
Published:
2025-01-06
摘要:
电网并网导则要求风电机组在电网故障时具备快速无功支撑能力,采用传统比例积分控制器控制的直驱风力机在应对电网阻抗变化和模型严重扰动时存在暂态响应速度慢、适应性差的问题.针对该问题,提出一种改进的线性自抗扰控制器与最小方差滤波器相结合的无功支撑控制策略.采用最小方差滤波器快速精准检测含背景谐波的故障电网电压幅值,可有效减小故障检测延时;利用线性自抗扰控制器有效提升机组暂态无功响应速度及其在电网阻抗扰动下的控制适应性和鲁棒性.搭建基于PSCAD/EMTDC软件的直驱风力机仿真模型,考虑弱电网和电网含背景谐波两种场景,对提出控制策略的暂态支撑有效性进行了仿真验证.
中图分类号:
王晗, 王富文, 周党生, 施刚, 张建文, 蔡旭. 电网故障下永磁直驱风电机组并网电流的自抗扰控制[J]. 上海交通大学学报, 2024, 58(12): 1968-1976.
WANG Han, WANG Fuwen, ZHOU Dangsheng, SHI Gang, ZHANG Jianwen, CAI Xu. Active Disturbance Rejection Control of Current of Direct Drive Wind Turbine in Power Grid Fault[J]. Journal of Shanghai Jiao Tong University, 2024, 58(12): 1968-1976.
表1
系统仿真参数
参数名称 | 数值 |
---|---|
额定容量,P/MW | 3 |
额定电压,V/V | 690 |
极对数,p | 44 |
定子电阻,Rs/Ω | 0.017 |
定子漏感,Xs/Ω | 0.064 |
直轴电感,Ld/mH | 0.5 |
交轴电感,Lq/mH | 0.5 |
风速,v/(m/s) | 9 |
直流母线电压额定值,Vdc/kV | 1.2 |
Cdc/mF | 10 |
Lf/mH | 1 |
电网电感,Lg/ mH | 0.2 |
线路阻抗,Z1/Ω | 0.625+j1.256 |
线路阻抗,Z2/Ω | 10.5+j28.3 |
短路电阻,Rc/Ω | 16 |
电压外环比例系数,Kpu | 0.2 |
电压外环积分系数,Kiu | 0.1 |
电流内环比例系数,Kpi | 0.6 |
电流内环积分系数,Kii | 0.1 |
kp | 300 |
ωoz | 2000 |
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