Method and system for evaluating observability of dynamic state estimation of power system

The invention discloses an observability evaluation method and system for dynamic state estimation of a power system. The method comprises the following steps: acquiring characteristics, connection topology and measurement data of all electrical nodes in the power system; classifying all the electri...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WU HAIWEI, LYU YANG, SHAN XIN, ZHANG HONG, YANG XUE, JIA DEXIANG, ZHAO QI, FENG QIUXIA, ZHANG CUN, TIAN JIANG, ZOU TIE, LUO YUCHUN, CAI RONG, CHEN ZHONG, ZHANG LIUDONG, PAN JUNDI, YU YU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses an observability evaluation method and system for dynamic state estimation of a power system. The method comprises the following steps: acquiring characteristics, connection topology and measurement data of all electrical nodes in the power system; classifying all the electrical nodes according to the properties of the electrical nodes; according to the condition that dynamic state estimation has observability, all electrical nodes are clustered according to the quantity of the measurement data of each electrical node to obtain full data, first-class missing data and second-class missing data, and the electrical node connection topology is combined, so that the reliability of the electrical nodes is improved. And carrying out observability area expansion through dynamic state estimation and data completion carried out based on the type of the electrical node, and determining an observability area, a processed observability area and a non-observability area of dynamic state estimation.