Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Manage...Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Management and Climate Change”Special Collection Issue in the journal of Energy Engineering provide insights into the field of energy systems management and climate change.From an extended perspective,this study discusses the key issues,research methods and models for energy system management and climate change research.Comprehensive and accurate prediction of energy supply and demand,the evaluation on the energy system resilience to climate change and the coupling methodology application of both nature and social science field maybe the frontier topics around achieving sustainable development goals of energy systems.展开更多
地铁列车制动能量回馈装置虽然回馈电能可观,而且减少电阻消耗以改善地铁通道热环境,但是也带来了能量逆流至110 k V侧电网的隐患。而且,城市轨道交通供电系统还具有夜间停运期间负荷低时功率因数偏低的特点。针对上述特点提出基于地铁...地铁列车制动能量回馈装置虽然回馈电能可观,而且减少电阻消耗以改善地铁通道热环境,但是也带来了能量逆流至110 k V侧电网的隐患。而且,城市轨道交通供电系统还具有夜间停运期间负荷低时功率因数偏低的特点。针对上述特点提出基于地铁制动能量回馈装置的能量管理系统。充分利用地铁制动能量回馈装置的有功和无功独立可控的控制原理,通过能量管理系统对主变电所的检测、判断、计算,以及对地铁制动能量回馈装置下达命令,实现了对地铁制动能量回馈装置的有功和无功能量管理,不仅可实现对地铁供电系统的无功补偿,也可实现对地铁制动回馈能量装置回馈能量时能量逆流的控制。展开更多
为提高多电飞机直流母线稳定性及提高能量利用效率,基于模型预测控制(Model predictive control,MPC)理论引入反馈校正策略并结合PI控制方法,针对混合动力系统(Hybrid power syst-em,HPS)提出了一种能量管理策略。根据直流母线、蓄电池...为提高多电飞机直流母线稳定性及提高能量利用效率,基于模型预测控制(Model predictive control,MPC)理论引入反馈校正策略并结合PI控制方法,针对混合动力系统(Hybrid power syst-em,HPS)提出了一种能量管理策略。根据直流母线、蓄电池、超级电容及燃料电池的工作特性,建立了HPS的微分方程模型。在预测控制器设计中,以保证直流母线电压稳定及降低燃料电池消耗为目标,并考虑了对约束的处理。最后通过对该HPS施加随时间变化的负载,将所提的MPC-PI策略与传统的PI方法对比,通过仿真验证了所提方案的可行性和有效性。展开更多
基金supported by the Fundamental Research Funds for the Central Universities(2022SKNY01,2022YJSNY04).
文摘Climate change and energy security issues are prominent challenges in current energy system management,which should be governed synergistically due to the feedback relationships between them.The“Energy Systems Management and Climate Change”Special Collection Issue in the journal of Energy Engineering provide insights into the field of energy systems management and climate change.From an extended perspective,this study discusses the key issues,research methods and models for energy system management and climate change research.Comprehensive and accurate prediction of energy supply and demand,the evaluation on the energy system resilience to climate change and the coupling methodology application of both nature and social science field maybe the frontier topics around achieving sustainable development goals of energy systems.
文摘地铁列车制动能量回馈装置虽然回馈电能可观,而且减少电阻消耗以改善地铁通道热环境,但是也带来了能量逆流至110 k V侧电网的隐患。而且,城市轨道交通供电系统还具有夜间停运期间负荷低时功率因数偏低的特点。针对上述特点提出基于地铁制动能量回馈装置的能量管理系统。充分利用地铁制动能量回馈装置的有功和无功独立可控的控制原理,通过能量管理系统对主变电所的检测、判断、计算,以及对地铁制动能量回馈装置下达命令,实现了对地铁制动能量回馈装置的有功和无功能量管理,不仅可实现对地铁供电系统的无功补偿,也可实现对地铁制动回馈能量装置回馈能量时能量逆流的控制。
文摘为提高多电飞机直流母线稳定性及提高能量利用效率,基于模型预测控制(Model predictive control,MPC)理论引入反馈校正策略并结合PI控制方法,针对混合动力系统(Hybrid power syst-em,HPS)提出了一种能量管理策略。根据直流母线、蓄电池、超级电容及燃料电池的工作特性,建立了HPS的微分方程模型。在预测控制器设计中,以保证直流母线电压稳定及降低燃料电池消耗为目标,并考虑了对约束的处理。最后通过对该HPS施加随时间变化的负载,将所提的MPC-PI策略与传统的PI方法对比,通过仿真验证了所提方案的可行性和有效性。