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Offset-Free Predictive Control for Variable Speed Wind Turbines
DOI:10.1109/TSTE.2012.2195731.png)
摘要
En 中文
Wind turbine aerodynamics is known as a nonlinear and stochastic system; hence, a high-performance requirement of tight optimal regime tracking is beyond the capability of the conventional linear PI controller. On the other hand, the linear model of the nonlinear wind turbine aerodynamics at a specific operating point produces a mismatch between plant and model which is the main reason for reference tracking offset seen in a conventional predictive controller. This paper presents a new predictive control approach for variable speed wind turbines in order to guarantee maximum power captured under the rated wind speed. The proposed algorithm, offset-free predictive control (OF-PC), has been exploited to provide zero error tracking of the nonstationary optimal speed trajectory. The control scheme attempts to add additional output disturbance signals to the linear presentation of wind turbine aerodynamics together with an appropriate observer design to lump the plant-model mismatches and/or unmodeled disturbances. The simulation and experiment results demonstrate the effectiveness of the control method.
Keyword:
Offset-free tracking
predictive control (PC)
variable speed wind turbines (VSWT)
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期刊
IF:
5.4
论文数:
6.8K
被引数:
1.5W
机构
引用论文
Model Predictive Control-A Simple and Powerful Method to Control Power Converters模型预测控制-一种简单而强大的控制功率转换器的方法
Experimental results of the variable speed, direct drive multipole synchronous wind turbine TWT1650
WIND ENERGY
IF3.3
Technical notes and correspondence - Combined design of disturbance model and observer for offset-free model predictive control技术注释和对应-无偏移模型预测控制的干扰模型和观测器的组合设计

