The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when three phase unbalanced fault occurs in AC system.

 
  • 當交流系統發(fā)生三相不對稱(chēng)故障時(shí),忽略直流系統負序分量的準穩態(tài)模型將給交直流混合系統的仿真帶來(lái)較大的誤差。
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