ГИБРИДНАЯ ТРЕХФАЗНО-ОДНОЛИНЕЙНАЯ РЕЖИМНАЯ МОДЕЛЬ ДЛЯ ОЦЕНКИ СОСТОЯНИЯ ЭЛЕКТРОЭНЕРГЕТИЧЕСКОЙ СИСТЕМЫ

科研成果: Article同行评审

摘要

The article considers a new formulation of the state estimation problem, i.e., calculating the electric power system operation mode based on remote measurement data. The suggested approach implies the possibility of computing the electric operation mode parameters in a three-phase formulation for the grid parts equipped with three-phase measurement instruments. As regards the grid parts that are not fitted with such instrumentation, but in which single-line measurements are available, or which are characterized by an insignificant imbalance of operation mode parameters, their state is estimated in the single-line formulation. A distinguishing feature of such problem formulation is that the AC power flows in the grid circuit branches are used as the sought variables. The use of this approach essentially simplifies the problem and brings about additional advantages that are especially important for distribution networks. A hybrid three-phase and single-line operation mode analysis model for solving the state estimation problem is proposed and described. Owing to the use of AC power flows in the grid circuit branches as independent variables (a flow model), it becomes possible to use the phase or line form of the described model depending on the available measurement information in the grid part or component and the requirements posed to the problem being solved. The change over from one system of coordinates to another is made without making essential changes in the analysis model itself. The model errors were analyzed on a test network circuit. The analysis results have shown that the proposed model can be used for calculating the electric operation mode if the phase voltages at the interface between the three-phase and single-line grid submodels do not differ from each other by more than 10%.
投稿的翻译标题A Hybrid Three-Phase and Single-Line Operation Mode Analysis Model for an Electric Power System
源语言Russian
页(从-至)15-23
期刊Электричество
3
DOI
Published - 2019

GRNTI

  • 44.29.00

Level of Research Output

  • VAK List

指纹

探究 'ГИБРИДНАЯ ТРЕХФАЗНО-ОДНОЛИНЕЙНАЯ РЕЖИМНАЯ МОДЕЛЬ ДЛЯ ОЦЕНКИ СОСТОЯНИЯ ЭЛЕКТРОЭНЕРГЕТИЧЕСКОЙ СИСТЕМЫ' 的科研主题。它们共同构成独一无二的指纹。

引用此