Electric power is widely used as the main energy source of ship integrated power system(SIPS), which contains power network and electric power network. SIPS network reconfiguration is a non-linear large-scale problem....Electric power is widely used as the main energy source of ship integrated power system(SIPS), which contains power network and electric power network. SIPS network reconfiguration is a non-linear large-scale problem. The reconfiguration solution influences the safety and stable operation of the power system. According to the operational characteristics of SIPS, a simplified model of power network and a mathematical model for network reconfiguration are established. Based on these models, a multi-agent and ant colony optimization(MAACO) is proposed to solve the problem of network reconfiguration. The simulations are carried out to demonstrate that the optimization method can reconstruct the integrated power system network accurately and efficiently.展开更多
The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated infor...The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated information transmission technology is an important method for transmitting various kinds of information via the existing broadband channels and networks in power systems.To implement integrated information transmission in power systems,the problem about how to guarantee the quality of service(QoS)of the communication services must be dealt with.展开更多
灵活应用电转气(power to gas,P2G)系统中电解水和甲烷化两阶段产出的氢气和甲烷可促进综合能源系统(integratedenergysystem,IES)消纳盈余可再生能源。传统P2G系统只考虑将甲烷作为燃气机组的燃料,未充分利用氢气高电解率的特性,造成...灵活应用电转气(power to gas,P2G)系统中电解水和甲烷化两阶段产出的氢气和甲烷可促进综合能源系统(integratedenergysystem,IES)消纳盈余可再生能源。传统P2G系统只考虑将甲烷作为燃气机组的燃料,未充分利用氢气高电解率的特性,造成能量梯级转化次数增加,能量损耗提高。应用P2G系统两阶段分别产出的氢气和甲烷耦合气网注氢(hydrogen injection into gas grid,HIGG)技术以促进IES中可再生能源的消纳。基于能量枢纽的概念,将IES系统经济性优化调度转化为混合整数规划问题进行求解。通过两个场景的仿真分析说明,相比于仅应用甲烷的传统P2G系统,IES系统中应用P2G和HIGG技术能够降低部分能量梯级转化次数和成本投入,在经济性、环保性方面都有显著提高。展开更多
基金supported by the National Natural Science Foundation of China (4177402141974005)。
文摘Electric power is widely used as the main energy source of ship integrated power system(SIPS), which contains power network and electric power network. SIPS network reconfiguration is a non-linear large-scale problem. The reconfiguration solution influences the safety and stable operation of the power system. According to the operational characteristics of SIPS, a simplified model of power network and a mathematical model for network reconfiguration are established. Based on these models, a multi-agent and ant colony optimization(MAACO) is proposed to solve the problem of network reconfiguration. The simulations are carried out to demonstrate that the optimization method can reconstruct the integrated power system network accurately and efficiently.
文摘The sharing of operation and management information is required by smart grid.The amount of information transmitted in electric power communication systems will increase greatly in the near future.The integrated information transmission technology is an important method for transmitting various kinds of information via the existing broadband channels and networks in power systems.To implement integrated information transmission in power systems,the problem about how to guarantee the quality of service(QoS)of the communication services must be dealt with.
文摘灵活应用电转气(power to gas,P2G)系统中电解水和甲烷化两阶段产出的氢气和甲烷可促进综合能源系统(integratedenergysystem,IES)消纳盈余可再生能源。传统P2G系统只考虑将甲烷作为燃气机组的燃料,未充分利用氢气高电解率的特性,造成能量梯级转化次数增加,能量损耗提高。应用P2G系统两阶段分别产出的氢气和甲烷耦合气网注氢(hydrogen injection into gas grid,HIGG)技术以促进IES中可再生能源的消纳。基于能量枢纽的概念,将IES系统经济性优化调度转化为混合整数规划问题进行求解。通过两个场景的仿真分析说明,相比于仅应用甲烷的传统P2G系统,IES系统中应用P2G和HIGG技术能够降低部分能量梯级转化次数和成本投入,在经济性、环保性方面都有显著提高。
