Grid automatic voltage control method and system based on multi-objective optimization
A multi-objective optimization and automatic voltage technology, applied in AC network voltage adjustment, circuit devices, AC network circuits, etc., can solve the multi-objective optimization without considering the number of switching equipment actions, the optimization target only considers a single, does not consider multiple Target optimization and other issues
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[0041] The following will be figure 1 The typical grid-IEEE-14 node standard system model shown is taken as an example to further describe in detail the grid automatic voltage control method and system based on multi-objective optimization in the present invention.
[0042] see figure 1 , where node 1 is connected to the upper-level power grid and is a balanced node, all nodes are P and Q nodes, and the upper and lower limits (per unit value) of the voltage amplitude of each node are 1.1 and 0.9 respectively, and nodes 2 and 14 are grid-connected For the unit, node No. 5 has dynamic reactive power compensation equipment, nodes No. 3, No. 6, and No. 8 have parallel capacitor banks, and all transformers are no-load tap-changing transformers. The grid model parameters and initial state (0 time) are shown in Table 1. As shown, the resistance, reactance, susceptance, voltage amplitude, active power, and reactive power data are all per unit values, the voltage phase angle is the am...
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