Abstract
The existing AVC system uses the expected voltage value as the control command value of the continuous adjustable reactive power source. However, the phenomenon of "grabbing reactive power", which is caused by the difference in the adjustment speeds of various continuous adjustable reactive power sources, is not conductive to safe, economical and high-quality operation of the power grid. To solve this problem, a method of selecting AVC control command is proposed, in which the expected voltage value as control command is delivered to the continuous adjustable voltage source with high sensitivity and fast adjustment speed and the expected reactive power is delivered to the rest. This method, combined with the existing AVC system, forms an AVC control command selection system to effectively solve the problem of "grabbing reactive power" and ensure safe, economical and high-quality operation of the power grid.
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