混合量测用于电力系统状态估计

来源 :高电压技术 | 被引量 : 0次 | 上传用户：zqqv353

【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

【作者】

：

游家训黄斌郭创新曹一家

【机构】

：

浙江大学电气工程学院,上海市超高压输变电公司,浙江省电力公司

【出处】

：

高电压技术

【发表日期】

：

2004年期

【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

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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IEEE 14、IEEE 57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.

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混合量测用于电力系统状态估计

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