居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、...居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、经济效益好等优势,与居民需求侧响应的潜力,提出两阶段优化模式。第一阶段,社区物业根据负荷预测及光伏出力预测,优化CCHP系统各部分出力,最大化物业净收益。第二阶段,家庭能量管理系统(Home Energy Management System,HEMS)根据CCHP系统启停及出力情况与分时电价,优化家庭负荷工作时间,最小化用户费用。最后通过对比不同案例仿真结果,证明了该两阶段优化模式能够实现供能侧与用能侧的双赢。展开更多
By optimizing the network topology, this paper proposes a newmethod of queuing theory clustering algorithm based on dynamic programming in a home energy management system（ HEMS）. First, the total cost of the HEMS sy...By optimizing the network topology, this paper proposes a newmethod of queuing theory clustering algorithm based on dynamic programming in a home energy management system（ HEMS）. First, the total cost of the HEMS system is divided into two parts, the gateway installation cost and the data transmission cost. Secondly, through comparing two kinds of different queuing theories, the cost problem of the HEMS is converted into the problem of gateway deployment. Finally, a machine-to-machine（ M2M） gateway configuration scheme is designed to minimize the cost of the system. Simulation results showthat the cost of the HEMS system mainly comes from the installation cost of the gateways when the gateway buffer space is large enough. If the gateway buffer space is limited, the proposed queue algorithm can effectively achieve optimal gateway setting while maintaining the minimal cost of the HEMS at desired levels through marginal analyses and the properties of cost minimization.展开更多
文摘居民负荷由于用电时间集中,已成为电力峰荷的主要组成部分,同时随着智能电网技术的发展,需求侧响应作为缓解电力供需矛盾的有效途径备受关注。以智能社区为背景,结合冷热电联供(Combined Cooling Heating and Power,CCHP)系统能效高、经济效益好等优势,与居民需求侧响应的潜力,提出两阶段优化模式。第一阶段,社区物业根据负荷预测及光伏出力预测,优化CCHP系统各部分出力,最大化物业净收益。第二阶段,家庭能量管理系统(Home Energy Management System,HEMS)根据CCHP系统启停及出力情况与分时电价,优化家庭负荷工作时间,最小化用户费用。最后通过对比不同案例仿真结果,证明了该两阶段优化模式能够实现供能侧与用能侧的双赢。
基金The National Natural Science Foundation of China(No.61471031)the Fundamental Research Funds for the Central Universities(No.2013JBZ01)the Program for New Century Excellent Talents in University of Ministry of Education of China(No.NCET-12-0766)
文摘By optimizing the network topology, this paper proposes a newmethod of queuing theory clustering algorithm based on dynamic programming in a home energy management system（ HEMS）. First, the total cost of the HEMS system is divided into two parts, the gateway installation cost and the data transmission cost. Secondly, through comparing two kinds of different queuing theories, the cost problem of the HEMS is converted into the problem of gateway deployment. Finally, a machine-to-machine（ M2M） gateway configuration scheme is designed to minimize the cost of the system. Simulation results showthat the cost of the HEMS system mainly comes from the installation cost of the gateways when the gateway buffer space is large enough. If the gateway buffer space is limited, the proposed queue algorithm can effectively achieve optimal gateway setting while maintaining the minimal cost of the HEMS at desired levels through marginal analyses and the properties of cost minimization.
