针对山西北部电网500 k V大同二电厂短路电流超标问题,通过降低其短路水平的计算研究,采取将该500 k V—220 k V变压器(即:5—2联变)断开的方式运行。此方式对大同电网网架影响较大,主要从短路水平、静态安全、暂态安全稳定等方面分析...针对山西北部电网500 k V大同二电厂短路电流超标问题,通过降低其短路水平的计算研究,采取将该500 k V—220 k V变压器(即:5—2联变)断开的方式运行。此方式对大同电网网架影响较大,主要从短路水平、静态安全、暂态安全稳定等方面分析研究了大二电厂500 k V—220 k V变压器(即:5—2联变)断开运行的方式下山西大同电网的安全稳定特性,为山西电网的安全运行提供了理论依据。展开更多
We propose a fault-tolerant tree-based multicast algorithm for 2-dimensional (2-D) meshes based on the concept of the extended safety level which is a vector associated with each node to capture fault information in t...We propose a fault-tolerant tree-based multicast algorithm for 2-dimensional (2-D) meshes based on the concept of the extended safety level which is a vector associated with each node to capture fault information in the neighborhood. In this approach each destination is reached through a minimum number of hops. In order to minimize the total number of traffic steps, three heuristic strategies are proposed. This approach can be easily implemented by pipelined circuit switching (PCS). A simulation study is conducted to measure the total number of traffic steps under different strategies. Our approach is the first attempt to address the fault- tolerant tree-based multicast problem in 2-D meshes based on limited global information with a simple model and succinct information.展开更多
文摘针对山西北部电网500 k V大同二电厂短路电流超标问题,通过降低其短路水平的计算研究,采取将该500 k V—220 k V变压器(即:5—2联变)断开的方式运行。此方式对大同电网网架影响较大,主要从短路水平、静态安全、暂态安全稳定等方面分析研究了大二电厂500 k V—220 k V变压器(即:5—2联变)断开运行的方式下山西大同电网的安全稳定特性,为山西电网的安全运行提供了理论依据。
基金NSF of USA under grant CCR 99O0646 and grant ANI 0073736.
文摘We propose a fault-tolerant tree-based multicast algorithm for 2-dimensional (2-D) meshes based on the concept of the extended safety level which is a vector associated with each node to capture fault information in the neighborhood. In this approach each destination is reached through a minimum number of hops. In order to minimize the total number of traffic steps, three heuristic strategies are proposed. This approach can be easily implemented by pipelined circuit switching (PCS). A simulation study is conducted to measure the total number of traffic steps under different strategies. Our approach is the first attempt to address the fault- tolerant tree-based multicast problem in 2-D meshes based on limited global information with a simple model and succinct information.
