Voltage droop control method of DC power grid
A technology of DC power grid and control method, which is applied in the direction of DC network circuit devices, electrical components, circuit devices, etc., and can solve problems such as the expression form of the droop function is not given
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[0056] An embodiment of the present invention provides a voltage droop control method for a DC power grid, the flow chart of which is shown in figure 1 shown, including the following steps:
[0057] Step 1: DC power grid topology transformation, the flow chart is as follows figure 2 Shown:
[0058] The basic structure of the DC power grid has two types of ring-network connection and radial connection. The current interaction in the ring-network connection is strong, and its control and protection are relatively complicated, while the current in the radial connection is relatively independent, which is conducive to the realization of the DC network. power balance control, so the purpose of topology conversion is to Figure 4 The DC network of any structure shown in the figure is transformed into Figure 5 A simple topology with only radial links is shown.
[0059] 1) Write the system admittance matrix Y and relationship matrix A according to the grid parameters;
[0060] ...
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