Multiple distributed generators islanding detection using GBDT-JS techniques | Science and Technology for Energy Transition (STET)

Decarbonizing Energy Systems: Smart Grid and Renewable Technologies

Open Access

Table 1

Confusion matrices for 80% training data and 20% testing data.

S.No	Detail coefficients	Confusion matrix of testing data			Confusion matrix of training data
S.No	Detail coefficients	ANN	GBDT	GBDT-JS	ANN	GBDT	GBDT-JS
1	Level 1	$[\begin{matrix} 758 & 120 \\ 201 & 1422 \end{matrix}]$ $\left[\begin{array}{cc}758& 120\\ 201& 1422\end{array}\right]$	$[\begin{matrix} 796 & 110 \\ 230 & 1365 \end{matrix}]$ $\left[\begin{array}{cc}796& 110\\ 230& 1365\end{array}\right]$	$[\begin{matrix} 800 & 78 \\ 217 & 1406 \end{matrix}]$ $\left[\begin{array}{cc}800& 78\\ 217& 1406\end{array}\right]$	$[\begin{matrix} 4420 & 0 \\ 8081 & 0 \end{matrix}]$ $\left[\begin{array}{cc}4420& 0\\ 8081& 0\end{array}\right]$	$[\begin{matrix} 3887 & 533 \\ 1125 & 6956 \end{matrix}]$ $\left[\begin{array}{cc}3887& 533\\ 1125& 6956\end{array}\right]$	$[\begin{matrix} 4064 & 356 \\ 1182 & 6899 \end{matrix}]$ $\left[\begin{array}{cc}4064& 356\\ 1182& 6899\end{array}\right]$
2	Level 2	$[\begin{matrix} 250 & 48 \\ 85 & 868 \end{matrix}]$ $\left[\begin{array}{cc}250& 48\\ 85& 868\end{array}\right]$	$[\begin{matrix} 295 & 43 \\ 78 & 835 \end{matrix}]$ $\left[\begin{array}{cc}295& 43\\ 78& 835\end{array}\right]$	$[\begin{matrix} 256 & 42 \\ 87 & 866 \end{matrix}]$ $\left[\begin{array}{cc}256& 42\\ 87& 866\end{array}\right]$	$[\begin{matrix} 1563 & 0 \\ 4688 & 0 \end{matrix}]$ $\left[\begin{array}{cc}1563& 0\\ 4688& 0\end{array}\right]$	$[\begin{matrix} 1398 & 165 \\ 418 & 4270 \end{matrix}]$ $\left[\begin{array}{cc}1398& 165\\ 418& 4270\end{array}\right]$	$[\begin{matrix} 1356 & 207 \\ 365 & 4323 \end{matrix}]$ $\left[\begin{array}{cc}1356& 207\\ 365& 4323\end{array}\right]$
3	Level 3	$[\begin{matrix} 66 & 46 \\ 21 & 493 \end{matrix}]$ $\left[\begin{array}{cc}66& 46\\ 21& 493\end{array}\right]$	$[\begin{matrix} 109 & 22 \\ 40 & 455 \end{matrix}]$ $\left[\begin{array}{cc}109& 22\\ 40& 455\end{array}\right]$	$[\begin{matrix} 97 & 20 \\ 38 & 470 \end{matrix}]$ $\left[\begin{array}{cc}97& 20\\ 38& 470\end{array}\right]$	$[\begin{matrix} 553 & 0 \\ 2573 & 0 \end{matrix}]$ $\left[\begin{array}{cc}553& 0\\ 2573& 0\end{array}\right]$	$[\begin{matrix} 483 & 70 \\ 191 & 2382 \end{matrix}]$ $\left[\begin{array}{cc}483& 70\\ 191& 2382\end{array}\right]$	$[\begin{matrix} 482 & 71 \\ 188 & 2385 \end{matrix}]$ $\left[\begin{array}{cc}482& 71\\ 188& 2385\end{array}\right]$
4	Level 4	$[\begin{matrix} 25 & 15 \\ 7 & 263 \end{matrix}]$ $\left[\begin{array}{cc}25& 15\\ 7& 263\end{array}\right]$	$[\begin{matrix} 22 & 14 \\ 42 & 73 \end{matrix}]$ $\left[\begin{array}{cc}22& 14\\ 42& 73\end{array}\right]$	$[\begin{matrix} 30 & 13 \\ 8 & 262 \end{matrix}]$ $\left[\begin{array}{cc}30& 13\\ 8& 262\end{array}\right]$	$[\begin{matrix} 195 & 0 \\ 1368 & 0 \end{matrix}]$ $\left[\begin{array}{cc}195& 0\\ 1368& 0\end{array}\right]$	$[\begin{matrix} 143 & 52 \\ 43 & 1326 \end{matrix}]$ $\left[\begin{array}{cc}143& 52\\ 43& 1326\end{array}\right]$	$[\begin{matrix} 156 & 39 \\ 57 & 1311 \end{matrix}]$ $\left[\begin{array}{cc}156& 39\\ 57& 1311\end{array}\right]$

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