当前大规模风光出力和负荷的波动性使得配电网对运行灵活性的要求不断增加。智能储能软开关(soft open point integrated with energy storage system,ESOP)具有智能软开关的功率灵活调节能力及储能系统的功率储存能力,可以提升配电网...当前大规模风光出力和负荷的波动性使得配电网对运行灵活性的要求不断增加。智能储能软开关(soft open point integrated with energy storage system,ESOP)具有智能软开关的功率灵活调节能力及储能系统的功率储存能力,可以提升配电网运行的灵活性和经济性。文中首先对ESOP的原理和数学模型进行阐述;然后,从节点和网架灵活性资源的调整能力出发提出净负荷调节量和支路负荷裕度,将其作为配电网灵活性的评价指标,将配电网运行成本及ESOP规划建设成本作为经济性指标,从而建立以含ESOP的配电网灵活经济运行为目标函数的优化规划模型;最后,采用二阶锥规划算法对模型进行求解。通过改进的IEEE 33节点系统进行算例验证,结果表明所提出的灵活性指标可准确量化配电网运行灵活性,优化规划模型可实现配电网经济灵活运行。展开更多
Multi-energy systems(MES)involving networks of different energy carriers can support the balancing of fluctuating renewable generation by co-ordinated joint operation.In this paper,an object-oriented modeling methodol...Multi-energy systems(MES)involving networks of different energy carriers can support the balancing of fluctuating renewable generation by co-ordinated joint operation.In this paper,an object-oriented modeling methodology for planning and operations control of MES based on nodal analysis is proposed.The framework provides the modularity to simulate scenarios with varying network configurations.Based on object-oriented programming,classes are formed with regard to common attributes of the network elements.The instances of classes represent physical network elements,such as buses,lines,and power conversion units.The models of the individual network elements involve adjustable and flexible parameters.This is especially advantageous for scenarios with operatingpoint-dependent efficiencies.The overall framework makes use of a uniform description of the model parameters across the diverse energy carriers.Thus,the methodology is particularly suited for the analysis of MES.The applicability of the modeling framework is demonstrated by two use cases involving a technology campus in Berlin.展开更多
文摘当前大规模风光出力和负荷的波动性使得配电网对运行灵活性的要求不断增加。智能储能软开关(soft open point integrated with energy storage system,ESOP)具有智能软开关的功率灵活调节能力及储能系统的功率储存能力,可以提升配电网运行的灵活性和经济性。文中首先对ESOP的原理和数学模型进行阐述;然后,从节点和网架灵活性资源的调整能力出发提出净负荷调节量和支路负荷裕度,将其作为配电网灵活性的评价指标,将配电网运行成本及ESOP规划建设成本作为经济性指标,从而建立以含ESOP的配电网灵活经济运行为目标函数的优化规划模型;最后,采用二阶锥规划算法对模型进行求解。通过改进的IEEE 33节点系统进行算例验证,结果表明所提出的灵活性指标可准确量化配电网运行灵活性,优化规划模型可实现配电网经济灵活运行。
基金This work was supported by the project“Energienetz Berlin Adlershof”(no.03ET1038G)funded by the German Federal Ministry of Economic Affairs and Energy(BMWi).
文摘Multi-energy systems(MES)involving networks of different energy carriers can support the balancing of fluctuating renewable generation by co-ordinated joint operation.In this paper,an object-oriented modeling methodology for planning and operations control of MES based on nodal analysis is proposed.The framework provides the modularity to simulate scenarios with varying network configurations.Based on object-oriented programming,classes are formed with regard to common attributes of the network elements.The instances of classes represent physical network elements,such as buses,lines,and power conversion units.The models of the individual network elements involve adjustable and flexible parameters.This is especially advantageous for scenarios with operatingpoint-dependent efficiencies.The overall framework makes use of a uniform description of the model parameters across the diverse energy carriers.Thus,the methodology is particularly suited for the analysis of MES.The applicability of the modeling framework is demonstrated by two use cases involving a technology campus in Berlin.
