Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON an...Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON and master slave RS 422/485 protocol. This design adopts LON as the trunk, master slave RS 422/485 control networks are connected to LON as special subnets by dedicated gateways. It is an implementation method for isomerous control network integration. Data management is ranked according to real time requirements for different network data. The core components, such as control network nodes, router and gateway, are detailed in the paper. The design utilizes both communication advantage of LonWorks technology and the more powerful control ability of universal MCUs or PLCs, thus it greatly increases system response speed and performance cost ratio.展开更多
为解决高渗透率可再生能源出力不确定性和负荷调节不灵活导致的电网运行弹性不足问题,该文提出了一种将绿电制氢合成甲醇系统等灵活性资源接入虚拟电厂(virtual power plant,VPP)参与需求响应并提供灵活性备用的解决方案。首先,建立绿...为解决高渗透率可再生能源出力不确定性和负荷调节不灵活导致的电网运行弹性不足问题,该文提出了一种将绿电制氢合成甲醇系统等灵活性资源接入虚拟电厂(virtual power plant,VPP)参与需求响应并提供灵活性备用的解决方案。首先,建立绿电制氢合成甲醇等灵活性资源的调节备用模型,考虑源荷相关性量化VPP灵活性需求解决源荷不匹配及波动误差问题;其次,为优化VPP自身灵活性充裕度,提出基于历史灵活性累计分布函数的充裕度及其概率量化指标方法,进一步提升调节能力;最后,为体现VPP参与者的利益竞争关系,设计了VPP运营商领导和负荷聚合商跟随的主从博弈模型,通过交互竞争求解VPP各时段出清电价和灵活资源用电策略。通过算例分析表明,该文所建模型合理可行、算法简便,具有较强的工程实践指导意义。展开更多
文摘Aiming at the weaknesses of LON bus, combining the coexistence of fieldbus and DCS (Distribu ted Control Systems) in control networks, the authors introduce a hierarchical hybrid control network design based on LON and master slave RS 422/485 protocol. This design adopts LON as the trunk, master slave RS 422/485 control networks are connected to LON as special subnets by dedicated gateways. It is an implementation method for isomerous control network integration. Data management is ranked according to real time requirements for different network data. The core components, such as control network nodes, router and gateway, are detailed in the paper. The design utilizes both communication advantage of LonWorks technology and the more powerful control ability of universal MCUs or PLCs, thus it greatly increases system response speed and performance cost ratio.
文摘为解决高渗透率可再生能源出力不确定性和负荷调节不灵活导致的电网运行弹性不足问题,该文提出了一种将绿电制氢合成甲醇系统等灵活性资源接入虚拟电厂(virtual power plant,VPP)参与需求响应并提供灵活性备用的解决方案。首先,建立绿电制氢合成甲醇等灵活性资源的调节备用模型,考虑源荷相关性量化VPP灵活性需求解决源荷不匹配及波动误差问题;其次,为优化VPP自身灵活性充裕度,提出基于历史灵活性累计分布函数的充裕度及其概率量化指标方法,进一步提升调节能力;最后,为体现VPP参与者的利益竞争关系,设计了VPP运营商领导和负荷聚合商跟随的主从博弈模型,通过交互竞争求解VPP各时段出清电价和灵活资源用电策略。通过算例分析表明,该文所建模型合理可行、算法简便,具有较强的工程实践指导意义。
