Stability Analysis of A DC Distribution System for Power System Integration of Plug-In Electric Vehicles

DC power distribution system is an important development direction of future urban power distribution system, while the charging and discharging requirements of electric vehicles have a great impact on the stability of the DC power distribution system. Firstly, a stability model of DC power distribution system integration of electric vehicles under different charging and discharging modes is established, and the stability of DC power distribution system is compared according to Nyquist stability criterion, when electric vehicles are charged and discharged in different ways. Finally, a DC power distribution system time domain example with electric vehicle is made in DIgSILENT simulation software, and simulation results verify the correctness of theoretical analysis.