基于模型预测控制的孤岛微电网日内滚动动态调度

Intraday Rolling Dynamic Scheduling of Islanded Microgrid Based on Model Predictive Control

目前微电网调度主要采用静态调度模型,即使在调度时间尺度极短的情况下也会忽略微型燃气轮机的动态特性。基于孤岛微电网,在模型预测控制方法的框架下,提出了一种孤岛微电网的日内滚动动态调度方法,在调度时间尺度极短的情况下考虑了微型燃气轮机的动态特性。仿真结果验证了所提出的日内滚动动态调度方法的有效性。与静态调度策略相比,动态调度策略在调度模型中考虑了微型燃气轮机的动态特性,可以结合更多的运行信息,因此在动态可以制定出更加合理有效的调度方案,能有效减小微型燃气轮机实际输出功率与设定输出功率之间的偏差,更好地满足负荷需求。

At present,microgrid scheduling mainly adopts static scheduling model,which ignores the dynamic characteristics of micro gas turbine even when the scheduling time scale is very short.Based on the islanded microgrid,an intraday rolling dynamic scheduling method of the islanded microgrid was proposed under the framework of model predictive control method,and the dynamic characteristics of the micro gas turbine were considered under the condition of very short scheduling time scale.Simulation results verified the effectiveness of the proposed intraday rolling dynamic scheduling method.Compared with the static scheduling strategy,the dynamic scheduling strategy takes into account the dynamic characteristics of the micro gas turbine in the scheduling model,and can combine more operation information to develop a more reasonable and effective scheduling scheme,which can effectively reduce the deviation between the actual output power of the micro gas turbine and its output power set,and better meet the load demand.