SUBSYNCHRONOUS OSCILLATION SUPPRESSION METHOD, SYSTEM AND APPARATUS

Disclosed in the present invention is a subsynchronous oscillation suppression method, system and apparatus. The method comprises: extracting a power angle deviation signal of a doubly-fed induction wind driven generator; according to the power angle deviation signal of the doubly-fed induction wind...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG, Qiudong, FENG, Shirui, WANG, Zhenquan, ZHANG, Shitao, LI, Jinke, SUN, Shunxiang, ZHA, Shensen, YANG, Yun, NIU, Tao, GU, Kanghui, ZHEN, Hongning
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	BLASTING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER SYSTEMS FOR STORING ELECTRIC ENERGY WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	Disclosed in the present invention is a subsynchronous oscillation suppression method, system and apparatus. The method comprises: extracting a power angle deviation signal of a doubly-fed induction wind driven generator; according to the power angle deviation signal of the doubly-fed induction wind driven generator, generating, by means of modulation, a subsynchronous component signal of a power angle deviation; and superimposing the subsynchronous component signal of the power angle deviation onto the voltage of a q-axis control loop of a rotor side of the doubly-fed wind driven generator, so as to perform compensation control on a q-axis voltage of a rotor, thereby suppressing subsynchronous oscillation. By means of the present invention, subsynchronous oscillation caused by the grid connection of a doubly-fed wind power farm via a series compensation line can be effectively suppressed, thereby ensuring the stability of a power system. Sont divulgués dans la présente invention un procédé, un système et un