Distributed droop control method based on active-disturbance-rejection control technology for DC microgrid
A technology of DC microgrid and active disturbance rejection control, which is applied in the coordinated control of DC microgrid including bus voltage compensation and load power dynamic distribution, and droop control field including ADRC, which can solve the problem of voltage and current deviation, microgrid Stable operation impact and other issues to achieve the effect of improving limitations
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[0068] The present invention will be further described below in conjunction with the accompanying drawings.
[0069] refer to Figure 1 to Figure 11 , a DC microgrid distributed droop control method based on active disturbance rejection control technology, comprising the following steps:
[0070] S1: Build a DC microgrid model for island operation, including distributed power sources, DC loads and various power electronic interface devices;
[0071] S2: Sampling the output voltage value of the distributed power supply and the bus voltage value as the input signal of the voltage outer loop; sampling the output current value of all distributed power supplies, and calculating the average current information in the microgrid as the input signal of the current inner loop;
[0072] S3: Both the voltage outer loop and the voltage inner loop adopt a linear voltage-current double-loop active disturbance rejection controller to obtain the compensation correction amount for adjusting th...
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