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RSS FeedsEnergies, Vol. 12, Pages 3186: Research on Large-Signal Stability of DC Microgrid Based on Droop Control (Energies)

 
 

20 august 2019 18:02:38

 
Energies, Vol. 12, Pages 3186: Research on Large-Signal Stability of DC Microgrid Based on Droop Control (Energies)
 


Ensuring the large signal stability of the DC microgrid is the premise of the safe operation of the DC microgrid, but the research on the large-signal stability of microgrids with multiple droop control micro-sources is still scarce. In this paper, a DC microgrid system model with multiple droop control micro-sources was established by appropriate simplification. Addressing the problem that most stability research methods cannot be quantitatively analyzed, the mixed potential function method was used to analyze the large signal stability of the system. However, the criterion obtained by the conventional mixed potential function method is complicated and contains multiple time-varying parameters, which is not convenient for analysis. Therefore, the simple form of the criterion was obtained through simplification and the analysis proved the rationality of the simplification. On this basis, a nonlinear droop control method was proposed to improve the anti-interference ability of the system. Finally, the accuracy of the large signal stability criterion and the effectiveness of nonlinear droop control on the system’s large signal stability were verified by simulation.


 
177 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 12, Pages 3187: Optimization of Radio Interference Levels for 500 and 600 kV Bipolar HVDC Transmission Lines (Energies)
Energies, Vol. 12, Pages 3204: Quantifying the Opportunity Limits of Automatic Residential Electric Load Shaping (Energies)
 
 
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