随着“双碳”目标的提出,天然气作为火电转型过渡时期的重要能源,亟需通过绿色转型实现安全、稳定运行。碳捕集、利用和储存(carbon capture,utilization and storage,CCUS)技术的应用将为燃气电厂低碳发展提供可靠的技术支撑。文中提...随着“双碳”目标的提出,天然气作为火电转型过渡时期的重要能源,亟需通过绿色转型实现安全、稳定运行。碳捕集、利用和储存(carbon capture,utilization and storage,CCUS)技术的应用将为燃气电厂低碳发展提供可靠的技术支撑。文中提出一种发电机组(generator unit,GU)-电转气(power to gas,P2G)-CCUS系统,并构建一个考虑风电输出不确定性的数据驱动鲁棒优化(data-driven robust optimization,DDRO)模型。在此基础上,由于现有优化方法无法实现科学成本分配,考虑到主体间的合作博弈关系及系统运行的稳定性,建立了系统内部基于核仁法(nucleolus based cooperative game,NCG)的成本分配模型,以确保成本分配的科学性和合理性。结果表明:引入CCUS可以显著减少碳排放,并通过参与碳市场获得额外的利润;DDRO模型可以有效抵抗不确定风电输出的干扰,增强系统运行的安全性,降低传统优化模型的保守性;NCG模型可以实现GU、P2G和CCUS之间的合理分配,使得每个参与者都可以获得比其独立运行时更高的收益,提高参与者的合作意愿,进而增强合作的长期性与稳定性。展开更多
Bioinspired flapping-wing micro-air-vehicles(FWMAVs)have the potential to be useful aerial tools for gathering information in various environments.With recent advancements in manufacturing technologies and better unde...Bioinspired flapping-wing micro-air-vehicles(FWMAVs)have the potential to be useful aerial tools for gathering information in various environments.With recent advancements in manufacturing technologies and better understanding of aerodynamic mechanisms behind of the flapping flight,outdoor flights have become a reality.However,to fully realize the potential of FWMAVs,further improvements are necessary,particularly in terms of stability and robustness under gusty conditions.In this study,the response and control of a tailless two-winged FWMAV under the wind gusts are investigated.Physical experiments are conducted with a one-degree-of-freedom gimbal to focus on effects of wind gusts on the rotational motion of the FWMAV.Proportional-derivative and sliding-mode controls are adopted for the attitude control.Results present that the body angles changed in time and reached approximately 50°at the maximum due to the wing gusts.The sliding-mode controller can more effectively control the rotational angle in the presence of disturbances and both the wing speed and changes in wind speed have an impact on the effectiveness of attitude control.These results contribute to the development of of tailless two-winged,single-motor driven FWMAVs in terms of the design of attitude controller and testing apparatus.展开更多
文摘随着“双碳”目标的提出,天然气作为火电转型过渡时期的重要能源,亟需通过绿色转型实现安全、稳定运行。碳捕集、利用和储存(carbon capture,utilization and storage,CCUS)技术的应用将为燃气电厂低碳发展提供可靠的技术支撑。文中提出一种发电机组(generator unit,GU)-电转气(power to gas,P2G)-CCUS系统,并构建一个考虑风电输出不确定性的数据驱动鲁棒优化(data-driven robust optimization,DDRO)模型。在此基础上,由于现有优化方法无法实现科学成本分配,考虑到主体间的合作博弈关系及系统运行的稳定性,建立了系统内部基于核仁法(nucleolus based cooperative game,NCG)的成本分配模型,以确保成本分配的科学性和合理性。结果表明:引入CCUS可以显著减少碳排放,并通过参与碳市场获得额外的利润;DDRO模型可以有效抵抗不确定风电输出的干扰,增强系统运行的安全性,降低传统优化模型的保守性;NCG模型可以实现GU、P2G和CCUS之间的合理分配,使得每个参与者都可以获得比其独立运行时更高的收益,提高参与者的合作意愿,进而增强合作的长期性与稳定性。
基金supported by Japan Society for the Promotion of Science KAKENHI under Grant No.JP22H01397supported by the National Science Foundation under Grant No.CMMI-1761618.
文摘Bioinspired flapping-wing micro-air-vehicles(FWMAVs)have the potential to be useful aerial tools for gathering information in various environments.With recent advancements in manufacturing technologies and better understanding of aerodynamic mechanisms behind of the flapping flight,outdoor flights have become a reality.However,to fully realize the potential of FWMAVs,further improvements are necessary,particularly in terms of stability and robustness under gusty conditions.In this study,the response and control of a tailless two-winged FWMAV under the wind gusts are investigated.Physical experiments are conducted with a one-degree-of-freedom gimbal to focus on effects of wind gusts on the rotational motion of the FWMAV.Proportional-derivative and sliding-mode controls are adopted for the attitude control.Results present that the body angles changed in time and reached approximately 50°at the maximum due to the wing gusts.The sliding-mode controller can more effectively control the rotational angle in the presence of disturbances and both the wing speed and changes in wind speed have an impact on the effectiveness of attitude control.These results contribute to the development of of tailless two-winged,single-motor driven FWMAVs in terms of the design of attitude controller and testing apparatus.
