针对区域综合能源系统因多重不确定性因素导致的能量失衡问题,实现具有鲁棒性的区域综合能源优化调度,将信息间隙决策理论(information gap decision theory,IGDT)的鲁棒模型和模型预测控制(model predictive control,MPC)相结合,提出...针对区域综合能源系统因多重不确定性因素导致的能量失衡问题,实现具有鲁棒性的区域综合能源优化调度,将信息间隙决策理论(information gap decision theory,IGDT)的鲁棒模型和模型预测控制(model predictive control,MPC)相结合,提出了综合能源系统双层能量优化调度策略。上层利用IGDT对日前调度计划中的不确定因素进行建模,改善因源荷预测误差导致的日前调度计划与实际调度偏差较大问题,下层在日内采用MPC滚动优化,修正日前调度偏差,弥补IGDT开环控制的缺点。并针对IGDT难以处理多不确定性因素的问题,采用两点估计法(two point estimation method,2PEM)和Cornish-Fisher级数展开,将源荷多元不确定性转换为功率缺额的单一不确定性,提高了IGDT模型的求解效率。最后,通过算例验证了所提方法的有效性。展开更多
In today’s comprehensive development of the domestic economy,China’s construction industry has reaped remarkable achievements.As a very important composition in the field of construction in China,the characteristics...In today’s comprehensive development of the domestic economy,China’s construction industry has reaped remarkable achievements.As a very important composition in the field of construction in China,the characteristics of concrete engineering itself determines that it is prone to encounter a variety of problems,the most frequent of which is various cracks.Cracks not only affect the aesthetics of the building,but also affect the durability and safety of the project.Considering these potential hazards,the causes of concrete cracks must be carefully analyzed to control and improve them in an effective way to ensure the safety and stability of concrete buildings.展开更多
文摘针对区域综合能源系统因多重不确定性因素导致的能量失衡问题,实现具有鲁棒性的区域综合能源优化调度,将信息间隙决策理论(information gap decision theory,IGDT)的鲁棒模型和模型预测控制(model predictive control,MPC)相结合,提出了综合能源系统双层能量优化调度策略。上层利用IGDT对日前调度计划中的不确定因素进行建模,改善因源荷预测误差导致的日前调度计划与实际调度偏差较大问题,下层在日内采用MPC滚动优化,修正日前调度偏差,弥补IGDT开环控制的缺点。并针对IGDT难以处理多不确定性因素的问题,采用两点估计法(two point estimation method,2PEM)和Cornish-Fisher级数展开,将源荷多元不确定性转换为功率缺额的单一不确定性,提高了IGDT模型的求解效率。最后,通过算例验证了所提方法的有效性。
文摘In today’s comprehensive development of the domestic economy,China’s construction industry has reaped remarkable achievements.As a very important composition in the field of construction in China,the characteristics of concrete engineering itself determines that it is prone to encounter a variety of problems,the most frequent of which is various cracks.Cracks not only affect the aesthetics of the building,but also affect the durability and safety of the project.Considering these potential hazards,the causes of concrete cracks must be carefully analyzed to control and improve them in an effective way to ensure the safety and stability of concrete buildings.
