Mathematical Problems in Engineering / 2016 / Article / Tab 5

Research Article

Equivalent Modeling of DFIG-Based Wind Power Plant Considering Crowbar Protection

Table 5

Equivalent accuracy of crowbar conduction and model error indices.

Operating conditionsClustering indexEquivalent accuracy/%Dynamic absolute error Dynamic relative error
/pu/MW/Mvar/%/%/%

Figure 6(a)Crowbar conduction100.00.00040.080.120.070.651.44
Incoming wind77.30.00160.530.610.395.363.98
Speed vector of generator57.60.00610.672.321.426.3225.87

Figure 6(b)Crowbar conduction100.00.00070.100.230.150.7716.03
Incoming wind54.50.00460.731.781.136.3927.44
Speed vector of generator47.00.00720.562.621.664.74236.25

Figure 6(c)Crowbar conduction98.50.00120.350.500.222.463.78
Incoming wind72.70.00350.351.250.792.2213.74
Speed vector of generator72.70.00450.571.780.953.5916.72

Figure 7(a)Crowbar conduction98.50.00050.100.210.136.741.88
Incoming wind54.50.00440.811.551.2174.7521.31
Speed vector of generator53.00.00420.851.461.1673.8119.85

Figure 7(b)Crowbar conduction95.50.00060.220.220.147.233.97
Incoming wind50.00.00661.192.351.8045.7653.90
Speed vector of generator51.50.00641.222.261.7445.5150.70

Figure 7(c)Crowbar conduction100.00.00040.130.190.072.170.86
Incoming wind80.30.00060.180.200.083.500.97
Speed vector of generator78.80.00050.240.260.103.201.13

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