改进分布式发电集成电源分析网络的仿真方法

Alhaloum A. Ahmed, Nichita Cristian
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引用次数: 2

摘要

分析了传统电网支持配电发电水平渗透的能力,分析了如何更好地实现电网(网状系统和径向系统)的柔性需求集成。在此基础上,提出了两种仿真算法,以减少CPU时间和内存,帮助电网运营商评估电力情况,提高DG的渗透水平。首先,提出了一种基于Schur互补法的电力系统负荷潮流研究算法。通过合理的计算时间将雅可比矩阵分解为两个独立的矩阵,可以避免解的发散性。下一步是应用于模拟算法的数据压缩,以研究电力系统中的潮流计算。在电力系统分析计算中,电网的实时监测减少了计算时间。提出了一种基于运行长度编码(RLE)方法的不包含零值的算法。应用这些算法得到的Matlab结果与解析方法相吻合。对比了牛顿-拉夫森解耦法和快速解耦法对收敛性的影响和效率。这些方法已经在多个IEEE总线测试系统上实现并进行了测试。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Simulation approach to improve power analysis network for integration of distributed generation
The capability of the classical network to support the level penetration of Distribution Generation (DG) has been present to analysis how to achieve a better integration of flexible demand of Electrical Networks(Mesh and Radial systems). Based on this analysis, two simulation algorithms have been proposed to reduce CPU time and memory, can help the grid operator to assess power situation and increase penetration level of DG. Firstly, It deals with an algorithm developed for power load flow studies in electrical power systems using Schur complement method. By dividing Jacobian matrix into two separated matrices with reasonable computation time, It could be avoided divergence of the solution. A next step that was applied concerned Data Compression for the Simulated algorithms conceived to study load flow calculation in electrical power systems. Real time monitor of grids required less computation time in calculation of power system analysis. It proposed an algorithm based on Run Length Encoding (RLE) method where no zero values are included. Matlab results obtained by applying these algorithms match the analytical approaches. Results have been compared with Newton Raphson and Fast Decoupled methods in term of influence of convergence properties and it's efficiency. These methods have been implemented and tested on several IEEE bus test systems.
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