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| 混合量测用于电力系统状态估计 | |
| 引用本文： | 游家训,黄斌,郭创新,曹一家.混合量测用于电力系统状态估计[J].高电压技术,2009,35(7):1765-1769. |
| 作者姓名： | 游家训 黄斌 郭创新 曹一家 |
| 作者单位： | 1. 浙江大学电气工程学院,杭州310027;上海市超高压输变电公司,上海200063 2. 浙江省电力公司,杭州,310007 3. 浙江大学电气工程学院,杭州,310027 |
| 基金项目： | 国家自然科学基金(50677062);;浙江省自然科学基金(R107062)~~ |
| 摘 要： | 根据目前PMU的配置状况和PMU与SCADA的数据特点,提出了一种基于PMU与SCADA混合量测的状态估计方法。该方法将非线性估计结果作为伪量测量加入线性估计中,并根据平均距离动态地调整伪量测量的权值,然后通过插值对非线性可观测区域进行实时的近似估计。最后通过IEEE14、IEEE57系统进行了仿真。仿真表明即使在PMU配置较少的情况下,该方法亦能够有效改进非线性可观测区域状态估计的精度和刷新速度。该方法兼顾了PMU和SCADA的特点,有较好的应用价值。 |
| 关 键 词： | 电力系统 状态估计 SCADA PMU 相对距离 权函数 伪量测量 插值模型 |
Sate Estimation Using SCADA and PMU Mixed Measurements |
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| YOU Jia-xun , HUANG Bin , GUO Chuang-xin , CAO Yi-jia.Sate Estimation Using SCADA and PMU Mixed Measurements[J].High Voltage Engineering,2009,35(7):1765-1769. | |
| Authors: | YOU Jia-xun HUANG Bin GUO Chuang-xin CAO Yi-jia |
| Affiliation: | 1.College of Electrical Engineering;Zhejiang University;Hangzhou 310027;China;2.Shanghai Extra High Voltage Transmission Company;Shanghai 200063;3.Zhejiang Electric Power Corporation;Hangzhou 310007;China |
| Abstract: | According to the present condition of PMU installation and the features of the SCADA and PMU,we proposed a hybrid state estimation model,in which the latest nonlinear state estimation result was added to linear model as pseudo measurements,and its weight was adjusted dynamically according to relative distance.Then,the node state was estimated by means of interpolation model,by which the estimation accuracy and speed were improved efficiently even if the PMU installation was insufficient.At last,a situation ... |
| Keywords: | power systems state estimation SCADA PMU relative distance weight function pseudo measurement interpolation model |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |