【作者】 白莉妍；

【导师】 梁志瑞；

【作者基本信息】 华北电力大学（河北） ， 农业电气化与自动化， 2009， 硕士

【摘要】 同步相量测量单元(PMU)在配电网状态估计、故障定位、线路参数测量、电能质量监测以及分析整个配电网谐波分布等方面有着重要的应用价值。因此,本文将配电网中PMU的优化配置作为研究重点,首先介绍了配电网中PMU优化配置的各种方法,并比较其优缺点。然后针对配电网的特点建立PMU最优配置数学模型,并用0-1整数规划法使用LINGO软件包求解,该方法在保证全网可观测的情况下,使配置的PMU数量尽可能少,并使系统的测量冗余度尽可能大,可以达到预期目标。其次对基于PMU的配电网谐波状态估计问题的求解方法进行了初步研究,对正定(或超定)量测方程和欠定量测方程分别采用乔累斯基分解法和正交变换算法进行求解,并用MATLAB仿真进行了验证。更多还原

【Abstract】 Phasor measurement unit in the distribution state estimation, fault location, the circuit parameters, power quality monitoring and anlysis distribution of the whole networks harmonic are an important aspects of application value. Therefore, the optimized allocation of distribution PMU is a research focus.First introduced PMU configuration optimization methods, and compares their advantages and disadvantages.Then establiah mathematical model of the PMU optimized allocation according to distribution characteristics. With the 0-1 integer programming combining LINGO software solution.This method considering the entire system observable and make the number of the PMU as less as possible, can achieve the desired target.And to the no configuration with harmonic state estimation, Second harmonic state estimation method to estimate the unknown nodesis in this paper,This paper puts forward some positive (or to) and underdetermined equation respective adopted Cholesky decomposition method and orthogonal transformation.With MATLAB simulation verified.更多还原