DC power real-time liftable capability calculation method
A technology of DC power and calculation method, applied in the direction of AC network circuit, power transmission AC network, emergency treatment AC circuit layout, etc., can solve the problems of DC commutation failure, deterioration of system voltage, etc., to avoid mismatch and improve transient state The effect of stability
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[0055] The basic principle of this embodiment is: based on the current operation mode of DC, determine the real-time power increase capability. On the one hand, it avoids that after the DC power is increased, the near-section current of the DC crosses the transmission power limit and undermines the safe and stable operation of the AC power grid. On the one hand, to avoid the DC emergency power support process, because the AC voltage of the converter station is too low, it is not enough to maintain the DC current to follow the current setting value output by the DC power regulator, resulting in the actual increase of DC power that does not meet the standard, even due to a large drop in voltage The problem of commutation failure. Under the premise of considering the DC overload capacity, this method comprehensively considers the constraints of the AC system and the operation mode of the DC itself. Based on the quasi-steady-state equation, the real-time maximum b...
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