Demonstrating the capacity benefits of dynamic ratings in smarter distribution networks
Demonstrating the capacity benefits of dynamic ratings in smarter distribution networks
复制标题
展示智能配电网络中动态评级的容量优势
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Gareth P. Harrison
中科院分区：
文献类型：
--
作者：
Luis F. Ochoa;Lucy C Cradden;Gareth P. Harrison
越来越多的配电网需要承载中到大容量的分布式（可再生）发电能力。为了促进这些新的网络参与者的高渗透水平，采用新的控制策略是至关重要的，在这种策略中，配电系统是积极运作的。诸如协调电压控制（CVC）或非固定连接等方案的广泛部署将取决于通信和控制基础设施，这可能是未来智能电网投资的一部分。这种基础设施场景还可能使动态评估架空线路额定值所需的先进实时测量设备的使用成为可能。考虑到风力输出、风速和温度的内在相关性，这项工作旨在证明采用动态额定值可能带来的好处，从而允许连接更多的风力发电能力。采用一种基于多周期交流最优潮流（OPF）的方法，综合考虑动态额定值和CVC等控制策略，对新一代电力系统的最大容量进行评估。该方法满足了需求、风力资源和温度的可变性。从一个简单的测试馈线的结果表明，与网络的被动运行相比，显著的发电容量增加。
Distribution networks are increasingly required to host medium to large volumes of distributed (renewable) generation capacity. To facilitate high penetration levels of these new network participants it is crucial to adopt new control strategies in which the distribution systems are operated actively. The wide deployment of schemes such as coordinated voltage control (CVC) or non-firm connections will depend on communication and control infrastructure that is likely to be part of future Smart Grid investments. This infrastructure scenario might also make viable the use of advanced real-time measurement devices required to dynamically assess overhead line ratings. Given the inherent correlation of wind power output, wind speeds and temperature, this work is aimed at demonstrating the benefits that the adoption of dynamic ratings might bring to allow the connection of more wind power capacity. A multi-period AC Optimal Power Flow (OPF)-based technique is used to evaluate the maximum capacity of new generation considering control strategies such as dynamic ratings and CVC. The method caters for the variability of demand, wind resource and temperature. Results from a simple test feeder demonstrate the significant generation capacity gains compared to the passive operation of the network.