Improving performance of the non-iterative direct state estimation method
Improving performance of the non-iterative direct state estimation method
复制标题
提高非迭代直接状态估计方法的性能
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Michael P. Razanousky
中科院分区：
文献类型：
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作者：
X. Jiang;B. Fardanesh;D. Maragal;G. Stefopoulos;J. Chow;Michael P. Razanousky
本文介绍了一种新的方法，直接的，非迭代的方式进行状态估计的非线性交流电力系统的持续工作。该方法基于Kipnis-Shamir再线性化技术，该技术用于求解过定义的多项式方程组。该技术将方程转换到一个更高的维度的线性空间，它允许的状态被解决在一个非迭代的方式。在测量足够精确的情况下，该方法与传统的迭代状态估计方法具有相同的结果，并且不需要对系统状态进行初始估计。与以往的工作相比，本文提出了一个更详细的描述和分析的解决方案的过程中，以及如何解决方案的过程中的一些特点，可以用来提高这种新的状态估计方法的计算速度。使用改进的MATLAB实现的方法的初步测试结果。
This paper describes continuing work on a new method for state estimation of a non-linear AC power system in a direct, non-iterative manner. This method is based on the Kipnis-Shamir relinearization technique that is used to solve over-defined sets of polynomial equations. The technique transforms the equations to a higher dimension linear space which allows the states to be solved in a non-iterative manner. Given sufficiently accurate measurements, this new state calculation method provides the same results as traditional iterative state estimation methods, and the proposed method does not require an initial guess of system states. Compared to previous works on the topic, this paper presents a more detailed description and analysis of the solution process, and how some of the characteristics of the solution process can be used to improve the computation speed of this new state estimation method. Preliminary test results using an improved MATLAB implementation of the method are included.