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IEC 61850数字化保护动模测试系统设计与实现（Design and Implementation of Dynamic Simulation Testing System for Digital Protection Based on IEC 61850 ）
IEC 61850 数字化保护 保护测试 物理模型 动态模拟
2010/8/17
IEC 61850标准的应用给变电站自动化系统带来了重大变革。在此类变电站中，保护装置可以直接从电子式互感器处获取所需的电流、电压数字量信息，并向智能开关控制器发送数字化跳闸命令。这种数字化保护与传统的微机型保护在硬件结构和信号处理方面都存在差异，传统的保护测试方法将不再适用。文章分析了基于IEC 61850的数字化保护装置的测试要求，提出通过对传统的物理模拟系统进行升级改造，建立符合要求的测试系...
IMPLEMENTATION OF DISCRETE TRANSFER RADIATION METHOD INTO SWIFT CFD CODE
computational fluid dynamics discrete transfer radiation method SWIFT
2009/10/13
The Computational Fluid Dynamics (CFD) has developed into a powerful tool widely used in science, technology and industrial design applications, whenever fluid flow, heat transfer, combustion, or othe...
In this paper we consider mixed finite element methods for second
order elliptic problems. In the case of the lowest order
Brezzi-Douglas-Marini elements (if $d=2$) or
Brezzi-Douglas-Dur\'an-Fortin...