中国电机工程学报2011,Vol.31Issue(27):130-137,8.
基于约束因子限幅控制的双馈感应发电机有功功率平滑控制
Power Smoothing Control Strategy of Doubly-fed Induction Generator Based on Constraint Factor Extent-limit Control
陈波 1吴政球1
作者信息
- 1. 湖南大学电气信息工程学院,湖南省长沙市410082
- 折叠
摘要
Abstract
On the basic analysis of the operating characteristics of doubly-fed induction generator (DFIG) and conventional control strategy of maximum power point tracking (MPPT), a new control strategy based on constraint factor for extent-limit to smooth the active power output of DFIG was proposed. This method could provide a adjustable limit value of active power output, which combined the generator speed control and pitch angle control to keep the active power output at any given value. The expression and calculation method of constraint factor was provided. Based on Matlab/Simulink emulation, the active power output characteristic of a 9MW wind farm was researched by the proposed smooth control strategy. Smooth performance index and variance were respectively computed with conventional and proposed method. Experiment results demonstrate that active power fluctuation is obviously weakened by the proposed control strategy and electric power system quality is promoted compared with the conventional MPPT control method.关键词
风力发电/双馈感应发电机/约束因子/限幅控制/桨距角控制/有功功率平滑Key words
wind-power generation/doubly-fed induction generator/constraint factor/extent-limit control/pitch angle control/active power smoothing分类
信息技术与安全科学引用本文复制引用
陈波,吴政球..基于约束因子限幅控制的双馈感应发电机有功功率平滑控制[J].中国电机工程学报,2011,31(27):130-137,8.