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|1. (WO2018033058) SERIES COMPENSATION DEVICE|
|Applicants:||NR ELECTRIC CO., LTD
NR ENGINEERING CO., LTD
|Title:||SERIES COMPENSATION DEVICE|
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 and the floor area.