Mathematical Problems in Engineering / 2015 / Article / Tab 4

Research Article

Modified Quasi-Steady State Model of DC System for Transient Stability Simulation under Asymmetric Faults

Table 4

Steady state DC values and errors during the 100 ms single phase grounding fault for QSS and MQSS models.

Single phase grounding
resistance (Ω)
ParametersEMT model (pu)QSS model (pu)Modified model (pu)Relative error
of QSS model (%)
Relative error of
modified model (%)

00.55000.60000.54819.090.34
00.42670.1954
0.05070.46000.1843807.30263.51

100.58200.73380.551244.815.29
0.29290.59250.3331102.2913.72
0.30000.61390.3440104.6314.67

200.68230.84260.716423.495.00
0.54000.69290.584628.318.26
0.56000.73600.600134.737.16