Table 3.

Data-driven FDD application examples in DC-link subsystem.

Ref.	Faulty Event	Meas. Signal	Feat. Sel./Extr.	Algorithm	Data Source
[82]	GND fault	$v_{\mathrm{dc}}$, $i_{\mathrm{in}}$ and $i_{\mathrm{out}}$	t-domain	CCA	Test-bench
[87]	C reduct.	$i_{\mathrm{in}}$ and $i_{\mathrm{out}}$	t-domain	ANN	Simu.
[88]	Cap. ageing	$v_{\mathrm{in}}$ and $v_{\mathrm{dc}}$	t-domain	ANFIS	Simu.
[89]	C reduct.	i and v	t and f-domain	SVR	Simu.