| 摘要 |
It is presented an apparatus comprising: a converter (118) having an AC side and a DC side, a switch (112) adapted to be connected to a transmission line (104) on a first side and the switch being adapted to be connected to a load (122) on a second side, the second side also being connected to the AC side of the converter, an energy storage device (120), connected to the DC side of the converter. In a first operating mode, the switch is closed, such that an energy storage current flows to or from the energy storage device to charge or discharge the energy storage device, respectively, using the converter for any necessary conversion between AC and DC. In a second operating mode, the switch is open, preventing current from flowing from the transmission line to the converter, and the energy storage device supplies a direct current which is converted to an alternating current by the converter. Moreover, in the first operating mode, the apparatus is configured such that a power transfer on the transmission line corresponds to a surge impedance loading of the transmission line, by affecting the energy storage current. A corresponding method is also presented.
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