STATCOM controlling method
A control method and current control technology, applied in power network operating system integration, information technology support system, climate sustainability, etc. The effect of low loss and improved utilization
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[0025] image 3 and Figure 4 They are the phasor diagrams of the system when the compensation current is leading and the compensation current is lagging, respectively. In order to simplify the description, the active current exchange between STATCOM and the system is not considered. where I C , U S , U C , U X respectively i abc , V Sabc , V Cabc , V Xabc Phasor representation in dq coordinates.
[0026] image 3 is the phasor diagram of the system when the compensation current leads, at this time the compensation current I output by STATCOM C Leading supply voltage U S , the inductor voltage U X with supply voltage U S in the opposite direction. STATCOM output voltage U C size|U C |=|U S |+|U X |, then |U C |>|U S |, that is, the output voltage U C than the supply voltage U S big. while the output voltage U C is determined by the DC voltage in the STATCOM, so the STATCOM must use a higher DC voltage.
[0027] Figure 4 is the phasor diagram of the ...
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