Electricity network is a very complex entity that comprises several components like generators, transmission lines, loads among others. As technologies continue to evolve, the complexity of the electricity network has...Electricity network is a very complex entity that comprises several components like generators, transmission lines, loads among others. As technologies continue to evolve, the complexity of the electricity network has also increased as more devices are being connected to the network. To understand the physical laws governing the operation of the network, techniques such as optimal power flow (OPF), Economic dispatch (ED) and Security constrained optimal power flow (SCOPF) were developed. These techniques have been used extensively in network operation, planning and so on. However, an in-depth presentation showcasing the merits and demerits of these techniques is still lacking in the literature. Hence, this paper intends to fill this gap. In this paper, Economic dispatch, optimal power flow and security-constrained optimal power flow are applied to a 3-bus test system using a linear programming approach. The results of the ED, OPF and SC-OPF are compared and presented.展开更多
分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,O...分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,OTDM)混合传输技术提升网络容量,在网络层引入软件定义网络(Software Defined Networking,SDN)控制技术实现智能调度,在业务层实现基于业务感知的分层传输。实验结果表明,该方案能够有效提升网络性能和资源利用效率,为电力调度数据网的现代化改造提供新的技术思路。展开更多
文摘Electricity network is a very complex entity that comprises several components like generators, transmission lines, loads among others. As technologies continue to evolve, the complexity of the electricity network has also increased as more devices are being connected to the network. To understand the physical laws governing the operation of the network, techniques such as optimal power flow (OPF), Economic dispatch (ED) and Security constrained optimal power flow (SCOPF) were developed. These techniques have been used extensively in network operation, planning and so on. However, an in-depth presentation showcasing the merits and demerits of these techniques is still lacking in the literature. Hence, this paper intends to fill this gap. In this paper, Economic dispatch, optimal power flow and security-constrained optimal power flow are applied to a 3-bus test system using a linear programming approach. The results of the ED, OPF and SC-OPF are compared and presented.
文摘分析电力调度数据网的特点和面临的问题,提出一种基于光纤通信的优化方案。该方案从传输层、网络层和业务层3个维度展开,在传输层采用波分复用(Wavelength Division Multiplexing,WDM)/光时分复用(Optical Time Division Multiplexing,OTDM)混合传输技术提升网络容量,在网络层引入软件定义网络(Software Defined Networking,SDN)控制技术实现智能调度,在业务层实现基于业务感知的分层传输。实验结果表明,该方案能够有效提升网络性能和资源利用效率,为电力调度数据网的现代化改造提供新的技术思路。
