This paper proposes an economic performance optimization strategy for a PV plant coupled with a battery energy storage system. The case study of La Reunion Island, a non-interconnected zone (NIZ) with a high level of ...This paper proposes an economic performance optimization strategy for a PV plant coupled with a battery energy storage system. The case study of La Reunion Island, a non-interconnected zone (NIZ) with a high level of renewable energy sources (RES), is considered. This last decade, to reach the ambitious target of electricity autonomy by 2030 set by the local authorities, local and national plans have been launched to promote renewable energy sources integration that led to a noticeable development of photovoltaic (PV) systems. To avoid a decrease of the grid reliability due to a large integration of intermittent energy sources into a non-interconnected grid, the authorities have introduced new regulatory rules for RES producers. The proposed optimization strategy relies on these new regulatory rules and takes into account the energy market data, the amount of PV production subject to penalties for imbalance, the batteries and the PV technological characteristics together with a PV production forecast model. Due to its high convergence rate to the true global minimum and its perfect suitability to practical engineering optimization problems, the recently developed Modified Cuckoo Search algorithm is used as optimization algorithm. The effectiveness and relevance of the proposed strategy are assessed on experimental data collected on a real PV power plant. An economical analysis demonstrates that the proposed optimization strategy is able to fulfill the new regulatory rules requirements while increasing the economic performance of the system.展开更多
The development of interstate electric ties ISETs and grids(ISGs) is a global process; recently, countries of Northeast Asia(NEA) that were previously very poorly connected have started to study the possibility of con...The development of interstate electric ties ISETs and grids(ISGs) is a global process; recently, countries of Northeast Asia(NEA) that were previously very poorly connected have started to study the possibility of constructing ISETs and ISGs. This paper describes the current state of the interstate transmissions in the NEA region, considering the prospective projects of ISETs in NEA. The results of the system optimization study on prospective NEA ISGs are provided. The proposals on the development of electric power cooperation in NEA are formulated.展开更多
随着“碳中和”“碳达峰”等政策的提出,新能源和异质能源的调度优化成为减少碳排放的主要措施。而家庭综合能源系统在能源需求侧占比较大,如何构建合理的家庭能源系统以及实现家庭负荷优化的能量管理成为亟待解决的问题。为了实现家庭...随着“碳中和”“碳达峰”等政策的提出,新能源和异质能源的调度优化成为减少碳排放的主要措施。而家庭综合能源系统在能源需求侧占比较大,如何构建合理的家庭能源系统以及实现家庭负荷优化的能量管理成为亟待解决的问题。为了实现家庭电热综合能源系统中负荷的灵活调度,充分考虑电动汽车及异质能源间设备的出力影响,提出了一种集成电转热设备热泵和电动汽车的家用燃料电池热电联产(domestic fuel cell-based combined heat and power,DFCCHP)系统综合优化调度方案。首先,根据家庭用电、用热特征将电、热负荷进行细化分类,引入热舒适度评价指标(predicted mean vote,PMV)进行室内温度的控制,建立负荷模型;其次,引入热泵和电动汽车,建立在分时电价和分时气价下以能源购买费用最小为目标的家庭综合能源系统优化调度模型,并使用Cplex求解器对模型求解;最后,通过仿真验证调度模型的合理性、可行性和环保性,以及热泵和电动汽车对系统经济性的影响。结果表明,在不同天气条件下,热泵和电动汽车的引入可有效减少系统的购能成本与碳排放,所得结论为进一步完善家庭综合能源系统拓扑及负荷优化调度提供了一定的理论分析基础。展开更多
During this decade,many countries have experienced natural and accidental disasters,such as typhoons,floods,earthquakes,and nuclear plant accidents,causing catastrophic damage to infrastructures.Since the end of 2019,...During this decade,many countries have experienced natural and accidental disasters,such as typhoons,floods,earthquakes,and nuclear plant accidents,causing catastrophic damage to infrastructures.Since the end of 2019,all countries of the world are struggling with the COVID-19 and pursuing countermeasures,including inoculation of vaccine,and changes in our lifestyle and social structures.All these experiences have made the residents in the affected regions keenly aware of the need for new infrastructures that are resilient and autonomous,so that vital lifelines are secured during calamities.A paradigm shift has been taking place toward reorganizing the energy social service management in many countries,including Japan,by effective use of sustainable energy and new supply schemes.However,such new power sources and supply schemes would affect the power grid through intermittency of power output and the deterioration of power quality and service.Therefore,new social infrastructures and novel management systems to supply energy and social service will be required.In this paper,user-friendly design,operation and control assist tools for resilient microgrids and autonomous communities are proposed and applied to the standard microgrid to verify its effectiveness and performance.展开更多
文摘This paper proposes an economic performance optimization strategy for a PV plant coupled with a battery energy storage system. The case study of La Reunion Island, a non-interconnected zone (NIZ) with a high level of renewable energy sources (RES), is considered. This last decade, to reach the ambitious target of electricity autonomy by 2030 set by the local authorities, local and national plans have been launched to promote renewable energy sources integration that led to a noticeable development of photovoltaic (PV) systems. To avoid a decrease of the grid reliability due to a large integration of intermittent energy sources into a non-interconnected grid, the authorities have introduced new regulatory rules for RES producers. The proposed optimization strategy relies on these new regulatory rules and takes into account the energy market data, the amount of PV production subject to penalties for imbalance, the batteries and the PV technological characteristics together with a PV production forecast model. Due to its high convergence rate to the true global minimum and its perfect suitability to practical engineering optimization problems, the recently developed Modified Cuckoo Search algorithm is used as optimization algorithm. The effectiveness and relevance of the proposed strategy are assessed on experimental data collected on a real PV power plant. An economical analysis demonstrates that the proposed optimization strategy is able to fulfill the new regulatory rules requirements while increasing the economic performance of the system.
文摘The development of interstate electric ties ISETs and grids(ISGs) is a global process; recently, countries of Northeast Asia(NEA) that were previously very poorly connected have started to study the possibility of constructing ISETs and ISGs. This paper describes the current state of the interstate transmissions in the NEA region, considering the prospective projects of ISETs in NEA. The results of the system optimization study on prospective NEA ISGs are provided. The proposals on the development of electric power cooperation in NEA are formulated.
文摘随着“碳中和”“碳达峰”等政策的提出,新能源和异质能源的调度优化成为减少碳排放的主要措施。而家庭综合能源系统在能源需求侧占比较大,如何构建合理的家庭能源系统以及实现家庭负荷优化的能量管理成为亟待解决的问题。为了实现家庭电热综合能源系统中负荷的灵活调度,充分考虑电动汽车及异质能源间设备的出力影响,提出了一种集成电转热设备热泵和电动汽车的家用燃料电池热电联产(domestic fuel cell-based combined heat and power,DFCCHP)系统综合优化调度方案。首先,根据家庭用电、用热特征将电、热负荷进行细化分类,引入热舒适度评价指标(predicted mean vote,PMV)进行室内温度的控制,建立负荷模型;其次,引入热泵和电动汽车,建立在分时电价和分时气价下以能源购买费用最小为目标的家庭综合能源系统优化调度模型,并使用Cplex求解器对模型求解;最后,通过仿真验证调度模型的合理性、可行性和环保性,以及热泵和电动汽车对系统经济性的影响。结果表明,在不同天气条件下,热泵和电动汽车的引入可有效减少系统的购能成本与碳排放,所得结论为进一步完善家庭综合能源系统拓扑及负荷优化调度提供了一定的理论分析基础。
文摘During this decade,many countries have experienced natural and accidental disasters,such as typhoons,floods,earthquakes,and nuclear plant accidents,causing catastrophic damage to infrastructures.Since the end of 2019,all countries of the world are struggling with the COVID-19 and pursuing countermeasures,including inoculation of vaccine,and changes in our lifestyle and social structures.All these experiences have made the residents in the affected regions keenly aware of the need for new infrastructures that are resilient and autonomous,so that vital lifelines are secured during calamities.A paradigm shift has been taking place toward reorganizing the energy social service management in many countries,including Japan,by effective use of sustainable energy and new supply schemes.However,such new power sources and supply schemes would affect the power grid through intermittency of power output and the deterioration of power quality and service.Therefore,new social infrastructures and novel management systems to supply energy and social service will be required.In this paper,user-friendly design,operation and control assist tools for resilient microgrids and autonomous communities are proposed and applied to the standard microgrid to verify its effectiveness and performance.
