Grid-connected static stability evaluation method based on converter limit transmission power

The invention discloses a grid-connected static stability evaluation method based on converter limit transmission power. The grid-connected static stability evaluation method comprises the following steps of: representing grid-connected power grid strength of a virtual synchronous converter system b...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WANG SHENGBO, KONG BOJUN, CHEN YAN, WANG JIANHUA, YIN JUNJIE, LIU JIANGDONG, ZHAN XIN, ZHU JIAN, CHEN SIYU
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 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 a grid-connected static stability evaluation method based on converter limit transmission power. The grid-connected static stability evaluation method comprises the following steps of: representing grid-connected power grid strength of a virtual synchronous converter system by utilizing a short-circuit capacity ratio SCR. establishing an equivalent circuit of converter power transmission, determining a converter power transmission vector relationship, and calculating the active power P of the transmission; deriving a maximum transmission power point Pmax by differentiating the active power P of the transmission; and calculating to obtain SCRmin, and determining conditions required by grid-connected static stability. Under the background of high power electron permeation, the grid-connected stability mechanism of a power electronic converter under the condition of a weak power grid is researched, and theoretical support is provided for grid-connected static stability evaluation based on