电力系统状态估计（英文）

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发表于 2012-3-24 14:53:09 | 显示全部楼层 |阅读模式

课件讲义
课件讲义名称:	电力系统状态估计（英文）
内容简介:	The basic motivation for state estimation is that we want to perform computer analysis of the network under the conditions characterized by the current set of measurements.
媒体:	电子文档
所属专业方向:	电力系统
制作者:
来源:

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State estimation for electric transmission grids was first formulated as a weighted least-squares problem by Fred Schweppe and his research group [] in 1969 (Schweppe also developed spot pricing, the precursor of modern-day locational marginal prices – LMPs – which are a central feature of electricity markets).

The basic motivation for state estimation is that we want to perform computer analysis of the network under the conditions characterized by the current set of measurements.

Specifically, we want to know the values of the bus voltage phasor magnitudes and angles |Vk|, θk for all k=1,…,N buses in the network (we assume θ1=0 so we do not need to find that one).

We begin with linear least squares estimation.

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[] F. Schweppe, .J. Wildes, and D. Rom, “Power system static state estimation: Parts I, II, and III,” Power Industry Computer Conference (PICA), Denver, Colorado June, 1969.