火电机组负荷多模型鲁棒预见控制方法

Multi-model Robust Forecast Control of Thermal Power Plant Loads

提出一种火电机组负荷多模型鲁棒预见控制方法。该方法首先对负荷区间进行模糊划分,然后在每个模糊子区间建立相应的结构参数摄动模型,并使用鲁棒预见控制方法设计控制器,最后总的控制量为多个子控制器输出的加权平均。仿真研究表明,该方法能够使负荷系统获得良好的全局控制性能。

A multi-model robust forecast control method is presented for the load control of thermal power plants. Under this method the fuzzy division of a load zone is conducted. In each fuzzy sub-zone a corresponding structural-parameter perturbation model is set up, and a controller designed by using a robust forecast control method. The total control quantity is a weighted average of the output of these individual sub-controllers. Simulation results indicate that the above method makes it possible to let the load system obtain a good overall control performance.