Starting method for flexible direct current transmission system
A power transmission system, flexible DC technology, applied in the direction of converting AC power input to DC power output, output power conversion devices, electrical components, etc. , the effect of suppressing AC and DC overcurrent, and simple operation
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[0027] The technical solution of the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0028] The present invention provides a method for starting a flexible DC transmission system, which effectively suppresses excessive voltage and current disturbances generated during the starting of the flexible DC system through simple sequential control operations, including the following implementation steps:
[0029] (1) The pole connection of the converter to be put into operation: close the isolation switch on the DC side of the converter to complete the DC side connection of each converter; the pole connection operations of each converter are in no order;
[0030] (2) If the converter to be put into operation is connected to the active AC system, the converter's incoming line switch and the bypass switch of the charging resistor are connected in turn to complete the charging of the converter; Source AC system connection, charging ...
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