Reactive coordination control method and device for ultrahigh-voltage direct current layered connection

The invention provides a reactive coordination control method and device for ultrahigh-voltage direct current layered connection. When a high-end valve group or a low-end valve group of a certain poleis unlocked or shunted under a set power according to an actual condition of reactive control under...

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Bibliographische Detailangaben
Hauptverfasser: TU RENCHUAN, LIU ZHIJUN, SUN WEIFENG, CAO SEN, KANG JIANSHUANG, WANG SHENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a reactive coordination control method and device for ultrahigh-voltage direct current layered connection. When a high-end valve group or a low-end valve group of a certain poleis unlocked or shunted under a set power according to an actual condition of reactive control under a layered connection mode, a filter is started to continuously switch command shunting interval time by judging change of a reactive mode, the filter of an AC network corresponding to the valve group is rapidly input or removed by respective reactive control function, so that overload or AC overvoltage of reactive power equipment is prevented, stable running of an AC system is maintained, and the reactive coordination control method has great engineering application value. When a certain AC network starts the absolute filter limited power, a DC transmission power allocation strategy is optimized, a power reference value of each valve group under the limited power is calculated, the loss ofthe DC power is reduced, a