现有区域能源互联网(regional energy internet,REI)呈现出多维度、多主体的运行特征,若采用传统集中式云端服务架构,系统易引发高延迟、云爆炸等问题。为此,提出一种边云协同架构及其优化策略。首先,建立REI的数学模型;其次,以REI为分...现有区域能源互联网(regional energy internet,REI)呈现出多维度、多主体的运行特征,若采用传统集中式云端服务架构,系统易引发高延迟、云爆炸等问题。为此,提出一种边云协同架构及其优化策略。首先,建立REI的数学模型;其次,以REI为分布式边缘控制单元,建立含云服务层、边缘服务层、设备层的REI边云协同架构,以实际工作量分配计算任务;然后,综合考虑系统多方利益主体博弈关系,设计云服务层、边缘服务层优化策略;最后,在此基础上,为提升紧急情况下系统恢复运行的速度,提出一种应急处理方法。通过两种多REI算例测试,结果表明:与传统云端服务架构相比,所提架构在计算速度、应急处理速度方面具有显著优势;所提优化策略能够有效提升REI的运行收益。展开更多
The increasing penetration of plug-in electric ve- hicles (PEVs) has highlighted the importance of coordinating ubiquitous distributed energy resources (DERs) via the internet of things (IoT).With the help of vehicle-...The increasing penetration of plug-in electric ve- hicles (PEVs) has highlighted the importance of coordinating ubiquitous distributed energy resources (DERs) via the internet of things (IoT).With the help of vehicle-to-grid (V2G) technology, PEVs can be aggregated to behave as a storage system, yielding both economic and environmental benefits. In this paper, we propose an optimal bidding framework for a V2G-enabled re- gional energy internet (REI) to participate in day-ahead markets considering carbon trading. The REI operator aims to maximize the net profits from day-ahead markets while anticipating real- time adjustments. A detailed battery model is developed to depict the charging and discharging capability of V2G-enabled PEVs. A two-stage stochastic optimization model is formulated to schedule the operation of PEV fleets against various sources of uncertainties, e.g., the arrival and departure time of PEVs, solar power and real-time prices. Case studies undertaken based on realistic datasets demonstrate that the coordination of the V2G- enabled PEVs and other DERs can facilitate the accommodation of renewable energy, thus improving the REI’s revenues in energy and carbon markets.展开更多
文摘现有区域能源互联网(regional energy internet,REI)呈现出多维度、多主体的运行特征,若采用传统集中式云端服务架构,系统易引发高延迟、云爆炸等问题。为此,提出一种边云协同架构及其优化策略。首先,建立REI的数学模型;其次,以REI为分布式边缘控制单元,建立含云服务层、边缘服务层、设备层的REI边云协同架构,以实际工作量分配计算任务;然后,综合考虑系统多方利益主体博弈关系,设计云服务层、边缘服务层优化策略;最后,在此基础上,为提升紧急情况下系统恢复运行的速度,提出一种应急处理方法。通过两种多REI算例测试,结果表明:与传统云端服务架构相比,所提架构在计算速度、应急处理速度方面具有显著优势;所提优化策略能够有效提升REI的运行收益。
基金This work was supported in part by the Smart Grid Joint Foundation Program of the National Natural Science Foundation of China and the State Grid Corporation of China(U1866204)in part by the National Natural Science Foundation of China(51907064)and in part by the State Grid Corporation of China(Application Research and Trading Mechanism of Green Electricity Market toward Sustainable Energy Accommodation,52020119000G).
文摘The increasing penetration of plug-in electric ve- hicles (PEVs) has highlighted the importance of coordinating ubiquitous distributed energy resources (DERs) via the internet of things (IoT).With the help of vehicle-to-grid (V2G) technology, PEVs can be aggregated to behave as a storage system, yielding both economic and environmental benefits. In this paper, we propose an optimal bidding framework for a V2G-enabled re- gional energy internet (REI) to participate in day-ahead markets considering carbon trading. The REI operator aims to maximize the net profits from day-ahead markets while anticipating real- time adjustments. A detailed battery model is developed to depict the charging and discharging capability of V2G-enabled PEVs. A two-stage stochastic optimization model is formulated to schedule the operation of PEV fleets against various sources of uncertainties, e.g., the arrival and departure time of PEVs, solar power and real-time prices. Case studies undertaken based on realistic datasets demonstrate that the coordination of the V2G- enabled PEVs and other DERs can facilitate the accommodation of renewable energy, thus improving the REI’s revenues in energy and carbon markets.
