利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107171327A 一种电网状态估计方法和装置 无效 - 驳回

一种电网状态估计方法和装置
摘要：
本发明提供了一种电网状态估计方法，所述电网中包括：第一节点、第二节点和第三节点，所述第一节点安装有PWU装置，所述方法包括：获取电网中第一节点的PMU量测数据；根据所述PMU量测数据计算满足预设条件的第二节点的伪PWU量测数据；获取电网中除去所述第一节点和所述第二节点之后的第三节点的SCADA量测数据；根据所述PMU量测数据、所述伪PWU量测数据和所述SCADA量测数据估计所述电网的当前潮流状态。该技术方案充分利用了PMU量测数据和SCADA量测数据，通过电网分解与协调计算，降低了电网状态估计过程的矩阵维数、以及建模的复杂度和求解的难度，提高电网状态估计的效率。
摘要（英）：

The invention provides a power grid state estimation method and device. A power grid comprises a first node, a second node and a third node, a PWU device is installed in the first node, and the method comprises the following steps: obtaining PMU measurement data of the first node in the power grid; calculating pseudo PMU measurement data of the second node satisfying a preset condition according to the PMU measurement data; obtaining SCADA measurement data of the third node in the power grid excluding the first node and the second node; and estimating a tidal current state of the power grid at present according to the PMU measurement data, the pseudo PMU measurement data and the SCADA measurement data. The technical scheme makes full use of the PMU measurement data and the SCADA measurement data, reduces the matrix dimensions in a power grid state estimation process, the modeling complexity and the solution difficulty through power grid decomposition and coordination calculation, and improves the power grid state estimation efficiency.

0/0