A Novel Coordinated Control System to Reactive Power Compensation of Photovoltaic Inverter Clusters

Table 5

Residual margin algorithm of one-dimensional dynamic capacity.

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Algorithm 2: Residual margin algorithm

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Input: RPC amount ; transformer capacity matrix , transformer real-time active power matrix , transformer real-time reactive power matrix ; inverter capacity matrix , inverter real-time active power matrix , inverter real-time reactive power matrix ;

Output: transformer reactive power adjustment matrix ; inverter reactive power adjustment matrix ;

(1): Initialize, arrange according to the sequence of transformer grid connection, the length of is , make ;

(2): Calculate reactive power margin matrix of transformer by formula (5);

(3): Repeat

(4): Calculate , among which , ;

(5): Initialize inverter group under transformer feeder, , , calculate reactive power margin matrix of inverter by formula (5);

(6): Repeat

(7): Calculate , among which , ;

(8): Update ;

(9): Until in ;

(10): Update , verify the constraints of formula (2);

(11): Update ;

(12): Until in ;

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