SERIES COMPENSATION DEVICE

• Main Authors: QIU, Defeng, LI, Gang, HU, Zhaoqing, DING, Jiudong, DONG, Yunlong, LU, Jiang, HUANG, Ruhai, SUI, Shunke, HU, Xianlai, LU, Yu, WANG, Ke, WANG, Nannan, JIANG, Chongxue, WANG, Hui, PAN, Lei
• Format: Patent
• Language: Chinese; English; French
• Published: 22.02.2018
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A series compensation device, including at least two voltage source converters, at least two three-phase transformers and at least one three-phase reactor. The voltage source converters are connected in series to a multi-circuit line by means of the three-phase transformers, and alternating-current sides of various voltage source converters are connected to each other by means of the three-phase reactor, so that the function of equally dividing a system power flow by a plurality of converters is realized. The device can be independently installed in a power transmission system to be used as a static synchronous series compensator, and can also be used as a component of a unified power flow controller, a convertible static compensator, an interline power flow controller and a unified power quality conditioner to be connected to a power transmission system device in series. The device can save the capacity of a converter, improve the application efficiency of the series compensation device, and reduce the cost