Station-level reactive power control method of flexible direct-current power transmission system

• Main Authors: XU SIXUAN, ZHAO FEIFEI, CHANG HAIJUN, HAN XINGNING, QI WANCHUN, LI ZHAOWEI, CAI HUI, LIU FUSUO, HUANG HUI, WANG QUANQUAN, ZHANG WENJIA, SUN ZHENYU, WANG CHAO, PENG ZHUYI
• Format: Patent
• Language: Chinese; English
• Published: 25.11.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a station-level reactive power control method for a flexible direct-current power transmission system. The method comprises the following steps: detecting to obtain a voltage signal measured value and a current signal measured value of a common connection point of a converter station; comparing an alternating current reactive component reference value of the common connection point of the converter station with a q-axis component of a current signal measured value, taking a difference value as a reactive current deviation value of the common connection point of the converter station, and obtaining a voltage compensation value of an alternating current near region of the converter station after the reactive current deviation value is multiplied by a correction coefficient K; after the AC voltage reference value is compared with the voltage compensation amount and the AC voltage measured value, a reactive outer loop deviation value is obtained, the reactive outer loop deviation value is