Journal of Electrical and Computer Engineering / 2019 / Article / Tab 4

Research Article

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

Table 4

System performance for line outage contingencies.

Test systemVariableObjective functions
Case 1Case 2Case 3Case 4

IEEE 30-bus test systemQg (MVar)91.9883.9982.9059.58
Loss (MW)9.867.266.725.21
Maximum loadability (MW)593.44608.28593.71611.49
Cost ($/h)803.81826.89846.04972.72

IEEE 57-bus test systemQg (MVar)282.05262.91265.46276.98
Loss (MW)21.4820.8018.9717.63
Maximum loadability (MW)2,374.602,379.132,387.122,448.90
Cost ($/h)43,258.8545,882.9446,344.0946,415.52

IEEE 118-bus test systemQg (MVar)302.22251.41295.41258.13
Loss (MW)84.5449.6571.9168.57
Maximum loadability (MW)16,588.3623,092.4121,671.2217,929.17
Cost ($/h)144,668.60156,898.64165,175.54152,214.65